Swift Package Index

Build Information

Failed to build Cobalt with Swift 5.9 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64

Build Log

    func asPublisher<T>(outputType: T.Type) -> AnyPublisher<T, CobaltError> {
                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:165:10: note: add @available attribute to enclosing instance method
    func asPublisher<T>(outputType: T.Type) -> AnyPublisher<T, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:164:1: note: add @available attribute to enclosing extension
extension CobaltError {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:166:16: error: 'Fail' is only available in macOS 10.15 or newer
        return Fail<T, CobaltError>(error: self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:166:16: note: add 'if #available' version check
        return Fail<T, CobaltError>(error: self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:165:10: note: add @available attribute to enclosing instance method
    func asPublisher<T>(outputType: T.Type) -> AnyPublisher<T, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:164:1: note: add @available attribute to enclosing extension
extension CobaltError {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:166:50: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Fail<T, CobaltError>(error: self).eraseToAnyPublisher()
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:166:50: note: add 'if #available' version check
        return Fail<T, CobaltError>(error: self).eraseToAnyPublisher()
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:165:10: note: add @available attribute to enclosing instance method
    func asPublisher<T>(outputType: T.Type) -> AnyPublisher<T, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:164:1: note: add @available attribute to enclosing extension
extension CobaltError {
^
[53/63] Compiling Cobalt CobaltRequest.swift
[54/63] Compiling Cobalt CobaltResponse.swift
[55/63] Compiling Cobalt String+Extension.swift
[56/63] Compiling Cobalt LoggingOption.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[57/63] Compiling Cobalt AccessToken.swift
[58/63] Compiling Cobalt Authentication.swift
[59/63] Emitting module Cobalt
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:47: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:102:74: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                                 grantType: OAuthenticationGrantType) -> AnyPublisher<CobaltRequest, CobaltError> {
                                                                         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:136: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
                                                                                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:82: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
                                                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:257:111: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
                                                                                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:257:10: note: add @available attribute to enclosing instance method
    func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:64: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    static func never() -> AnyPublisher<Output, Failure> {
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:11: error: 'AnyPublisher' is only available in macOS 10.15 or newer
extension AnyPublisher {
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:17:44: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    var stubbedPublishers: [CobaltRequest: AnyPublisher<CobaltResponse, CobaltError>] = [:]
                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:13:20: note: add @available attribute to enclosing class
public final class ClientService: NSObject {
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:29:72: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public func addStubbedPublisher(request: CobaltRequest, publisher: AnyPublisher<CobaltResponse, CobaltError>) {
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:29:17: note: add @available attribute to enclosing instance method
    public func addStubbedPublisher(request: CobaltRequest, publisher: AnyPublisher<CobaltResponse, CobaltError>) {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:13:20: note: add @available attribute to enclosing class
public final class ClientService: NSObject {
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:34:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published public var authorizationGrantType: OAuthenticationGrantType?
     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:36:28: error: 'AnyCancellable' is only available in macOS 10.15 or newer
    var cancellables = Set<AnyCancellable>()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:52: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:56: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:136: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                                                                                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:351:60: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func login(username: String, password: String) -> AnyPublisher<Void, CobaltError> {
                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:351:15: note: add @available attribute to enclosing instance method
    open func login(username: String, password: String) -> AnyPublisher<Void, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:360:79: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func startAuthorizationFlow(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
                                                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:360:15: note: add @available attribute to enclosing instance method
    open func startAuthorizationFlow(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:364:116: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
                                                                                                                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:364:15: note: add @available attribute to enclosing instance method
    open func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<CobaltClient, OAuthenticationGrantType?>' cannot be converted to contextual type 'KeyPath<CobaltClient, OAuthenticationGrantType?>'
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:165:48: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func asPublisher<T>(outputType: T.Type) -> AnyPublisher<T, CobaltError> {
                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:165:10: note: add @available attribute to enclosing instance method
    func asPublisher<T>(outputType: T.Type) -> AnyPublisher<T, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltError.swift:164:1: note: add @available attribute to enclosing extension
extension CobaltError {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/RequestQueue.swift:15:39: error: 'PassthroughSubject' is only available in macOS 10.15 or newer
    private var _map: [CobaltRequest: PassthroughSubject<CobaltResponse, CobaltError>] = [:]
                                      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/RequestQueue.swift:12:7: note: add @available attribute to enclosing class
class RequestQueue {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/RequestQueue.swift:57:50: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func publisher(of request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError>? {
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/RequestQueue.swift:57:10: note: add @available attribute to enclosing instance method
    func publisher(of request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError>? {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/RequestQueue.swift:12:7: note: add @available attribute to enclosing class
class RequestQueue {
      ^
[60/63] Compiling Cobalt AuthenticationProvider.swift
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:47: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:102:74: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                                 grantType: OAuthenticationGrantType) -> AnyPublisher<CobaltRequest, CobaltError> {
                                                                         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:136: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
                                                                                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:82: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
                                                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:257:111: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
                                                                                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:257:10: note: add @available attribute to enclosing instance method
    func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:64: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    static func never() -> AnyPublisher<Output, Failure> {
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:11: error: 'AnyPublisher' is only available in macOS 10.15 or newer
extension AnyPublisher {
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:16: error: 'Just' is only available in macOS 10.15 or newer
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:16: note: add 'if #available' version check
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:30: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:30: note: add 'if #available' version check
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:67: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:67: note: add 'if #available' version check
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:24: error: 'Just' is only available in macOS 10.15 or newer
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:24: note: add 'if #available' version check
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:38: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:38: note: add 'if #available' version check
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:75: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:75: note: add 'if #available' version check
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:14: note: add 'if #available' version check
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:41: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
                                        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:41: note: add 'if #available' version check
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
                                        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:135:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                    return AnyPublisher<CobaltRequest, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:135:28: note: add 'if #available' version check
                    return AnyPublisher<CobaltRequest, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:138:15: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            }.eraseToAnyPublisher()
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:138:15: note: add 'if #available' version check
            }.eraseToAnyPublisher()
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:173:40: error: 'tryMap' is only available in macOS 10.15 or newer
        return client.request(request).tryMap { [weak self, client] response -> Void in
                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:173:40: note: add 'if #available' version check
        return client.request(request).tryMap { [weak self, client] response -> Void in
                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:180:13: error: setter for 'authorizationGrantType' is only available in macOS 10.15 or newer
            client?.authorizationGrantType = accessToken.grantType
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:180:13: note: add 'if #available' version check
            client?.authorizationGrantType = accessToken.grantType
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:11: error: 'tryCatch' is only available in macOS 10.15 or newer
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:11: note: add 'if #available' version check
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:51: error: 'AnyPublisher' is only available in macOS 10.15 or newer
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:51: note: add 'if #available' version check
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:197:11: error: 'mapError' is only available in macOS 10.15 or newer
        }.mapError { error in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:197:11: note: add 'if #available' version check
        }.mapError { error in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:199:11: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:199:11: note: add 'if #available' version check
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:205:16: error: 'Deferred' is only available in macOS 10.15 or newer
        return Deferred { [weak self] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:205:16: note: add 'if #available' version check
        return Deferred { [weak self] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:206:13: error: 'Future' is only available in macOS 10.15 or newer
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:206:13: note: add 'if #available' version check
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:254:11: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:254:11: note: add 'if #available' version check
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:316:9: error: setter for 'authorizationGrantType' is only available in macOS 10.15 or newer
        client.authorizationGrantType = grantType
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:316:9: note: add 'if #available' version check
        client.authorizationGrantType = grantType
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:307:10: note: add @available attribute to enclosing instance method
    func handleManualOAuthRequest(grantType: OAuthenticationGrantType,
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:16: error: 'Fail' is only available in macOS 10.15 or newer
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:16: note: add 'if #available' version check
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:54: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:54: note: add 'if #available' version check
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:16: error: 'Empty' is only available in macOS 10.15 or newer
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:16: note: add 'if #available' version check
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:102: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
                                                                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:102: note: add 'if #available' version check
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
                                                                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
[61/63] Compiling Cobalt AuthorizationCodeRequest.swift
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:47: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:102:74: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                                 grantType: OAuthenticationGrantType) -> AnyPublisher<CobaltRequest, CobaltError> {
                                                                         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:136: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
                                                                                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:82: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
                                                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:257:111: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
                                                                                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:257:10: note: add @available attribute to enclosing instance method
    func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:64: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    static func never() -> AnyPublisher<Output, Failure> {
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:11: error: 'AnyPublisher' is only available in macOS 10.15 or newer
extension AnyPublisher {
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:16: error: 'Just' is only available in macOS 10.15 or newer
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:16: note: add 'if #available' version check
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:30: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:30: note: add 'if #available' version check
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:67: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:93:67: note: add 'if #available' version check
        return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:29:10: note: add @available attribute to enclosing instance method
    func authorize(request: CobaltRequest) -> AnyPublisher<CobaltRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:24: error: 'Just' is only available in macOS 10.15 or newer
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:24: note: add 'if #available' version check
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:38: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:38: note: add 'if #available' version check
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:75: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:116:75: note: add 'if #available' version check
                return Just(request).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:14: note: add 'if #available' version check
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:41: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
                                        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:133:41: note: add 'if #available' version check
            .flatMap { [weak self] _ -> AnyPublisher<CobaltRequest, CobaltError> in
                                        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:135:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                    return AnyPublisher<CobaltRequest, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:135:28: note: add 'if #available' version check
                    return AnyPublisher<CobaltRequest, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:138:15: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            }.eraseToAnyPublisher()
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:138:15: note: add 'if #available' version check
            }.eraseToAnyPublisher()
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:101:18: note: add @available attribute to enclosing instance method
    private func _authorizeOAuth(request: CobaltRequest,
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:173:40: error: 'tryMap' is only available in macOS 10.15 or newer
        return client.request(request).tryMap { [weak self, client] response -> Void in
                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:173:40: note: add 'if #available' version check
        return client.request(request).tryMap { [weak self, client] response -> Void in
                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:180:13: error: setter for 'authorizationGrantType' is only available in macOS 10.15 or newer
            client?.authorizationGrantType = accessToken.grantType
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:180:13: note: add 'if #available' version check
            client?.authorizationGrantType = accessToken.grantType
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:11: error: 'tryCatch' is only available in macOS 10.15 or newer
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:11: note: add 'if #available' version check
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:51: error: 'AnyPublisher' is only available in macOS 10.15 or newer
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:183:51: note: add 'if #available' version check
        }.tryCatch { [weak self, client] error -> AnyPublisher<Void, CobaltError> in
                                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:197:11: error: 'mapError' is only available in macOS 10.15 or newer
        }.mapError { error in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:197:11: note: add 'if #available' version check
        }.mapError { error in
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:199:11: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:199:11: note: add 'if #available' version check
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:141:10: note: add @available attribute to enclosing instance method
    func sendOAuthRequest(initialRequest: CobaltRequest? = nil, grantType: OAuthenticationGrantType, parameters: Parameters? = nil) -> AnyPublisher<Void, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:205:16: error: 'Deferred' is only available in macOS 10.15 or newer
        return Deferred { [weak self] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:205:16: note: add 'if #available' version check
        return Deferred { [weak self] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:206:13: error: 'Future' is only available in macOS 10.15 or newer
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:206:13: note: add 'if #available' version check
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:254:11: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:254:11: note: add 'if #available' version check
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:204:10: note: add @available attribute to enclosing instance method
    func createAuthorizationCodeRequest(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:316:9: error: setter for 'authorizationGrantType' is only available in macOS 10.15 or newer
        client.authorizationGrantType = grantType
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:316:9: note: add 'if #available' version check
        client.authorizationGrantType = grantType
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:307:10: note: add @available attribute to enclosing instance method
    func handleManualOAuthRequest(grantType: OAuthenticationGrantType,
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:16: error: 'Fail' is only available in macOS 10.15 or newer
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:16: note: add 'if #available' version check
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:54: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:343:54: note: add 'if #available' version check
        return Fail(error: CobaltError(from: error)).eraseToAnyPublisher()
                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:322:10: note: add @available attribute to enclosing instance method
    func recover(from error: Error, request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
         ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:15:7: note: add @available attribute to enclosing class
class AuthenticationProvider {
      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:16: error: 'Empty' is only available in macOS 10.15 or newer
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:16: note: add 'if #available' version check
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:102: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
                                                                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:349:102: note: add 'if #available' version check
        return Empty(completeImmediately: false, outputType: Output.self, failureType: Failure.self).eraseToAnyPublisher()
                                                                                                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:348:17: note: add @available attribute to enclosing static method
    static func never() -> AnyPublisher<Output, Failure> {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Authentication/AuthenticationProvider.swift:347:1: note: add @available attribute to enclosing extension
extension AnyPublisher {
^
[62/63] Compiling Cobalt ClientService.swift
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:17:44: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    var stubbedPublishers: [CobaltRequest: AnyPublisher<CobaltResponse, CobaltError>] = [:]
                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:13:20: note: add @available attribute to enclosing class
public final class ClientService: NSObject {
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:29:72: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public func addStubbedPublisher(request: CobaltRequest, publisher: AnyPublisher<CobaltResponse, CobaltError>) {
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:29:17: note: add @available attribute to enclosing instance method
    public func addStubbedPublisher(request: CobaltRequest, publisher: AnyPublisher<CobaltResponse, CobaltError>) {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:13:20: note: add @available attribute to enclosing class
public final class ClientService: NSObject {
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:34:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published public var authorizationGrantType: OAuthenticationGrantType?
     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:36:28: error: 'AnyCancellable' is only available in macOS 10.15 or newer
    var cancellables = Set<AnyCancellable>()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:52: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:56: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:136: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                                                                                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:351:60: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func login(username: String, password: String) -> AnyPublisher<Void, CobaltError> {
                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:351:15: note: add @available attribute to enclosing instance method
    open func login(username: String, password: String) -> AnyPublisher<Void, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:360:79: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func startAuthorizationFlow(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
                                                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:360:15: note: add @available attribute to enclosing instance method
    open func startAuthorizationFlow(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:364:116: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
                                                                                                                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:364:15: note: add @available attribute to enclosing instance method
    open func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<CobaltClient, OAuthenticationGrantType?>' cannot be converted to contextual type 'KeyPath<CobaltClient, OAuthenticationGrantType?>'
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:111:16: error: 'Just' is only available in macOS 10.15 or newer
        return Just(request)
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:111:16: note: add 'if #available' version check
        return Just(request)
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:112:14: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
            .setFailureType(to: CobaltError.self)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:112:14: note: add 'if #available' version check
            .setFailureType(to: CobaltError.self)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:113:14: error: 'subscribe(on:options:)' is only available in macOS 10.15 or newer
            .subscribe(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:113:14: note: add 'if #available' version check
            .subscribe(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:114:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            .flatMap { [authProvider] aRequest in authProvider.authorize(request: aRequest) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:114:14: note: add 'if #available' version check
            .flatMap { [authProvider] aRequest in authProvider.authorize(request: aRequest) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:115:14: error: 'prefix' is only available in macOS 10.15 or newer
            .prefix(1)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:115:14: note: add 'if #available' version check
            .prefix(1)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:14: note: add 'if #available' version check
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:50: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:50: note: add 'if #available' version check
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:119:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                    return AnyPublisher<CobaltResponse, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:119:28: note: add 'if #available' version check
                    return AnyPublisher<CobaltResponse, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:122:22: error: 'tryMap' is only available in macOS 10.15 or newer
                    .tryMap { [weak self] response -> any CobaltResponse in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:122:22: note: add 'if #available' version check
                    .tryMap { [weak self] response -> any CobaltResponse in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:125:22: error: 'mapError' is only available in macOS 10.15 or newer
                    .mapError { ($0 as? CobaltError) ?? CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:125:22: note: add 'if #available' version check
                    .mapError { ($0 as? CobaltError) ?? CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:126:22: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:126:22: note: add 'if #available' version check
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:14: error: 'catch' is only available in macOS 10.15 or newer
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:14: note: add 'if #available' version check
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:64: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:64: note: add 'if #available' version check
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:22: error: 'tryCatch' is only available in macOS 10.15 or newer
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:22: note: add 'if #available' version check
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:46: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:46: note: add 'if #available' version check
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:138:22: error: 'mapError' is only available in macOS 10.15 or newer
                    .mapError { CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:138:22: note: add 'if #available' version check
                    .mapError { CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:139:22: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:139:22: note: add 'if #available' version check
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:15: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:15: note: add 'if #available' version check
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:56: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:56: note: add 'if #available' version check
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:24: error: 'Just' is only available in macOS 10.15 or newer
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:24: note: add 'if #available' version check
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:39: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:39: note: add 'if #available' version check
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:76: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:76: note: add 'if #available' version check
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:151:14: error: 'receive(on:options:)' is only available in macOS 10.15 or newer
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:151:14: note: add 'if #available' version check
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:152:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:152:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:20: error: 'Just' is only available in macOS 10.15 or newer
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:20: note: add 'if #available' version check
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:35: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:35: note: add 'if #available' version check
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:72: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:72: note: add 'if #available' version check
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:217:16: error: 'Deferred' is only available in macOS 10.15 or newer
        return Deferred { [weak self, session] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:217:16: note: add 'if #available' version check
        return Deferred { [weak self, session] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:218:13: error: 'Future' is only available in macOS 10.15 or newer
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:218:13: note: add 'if #available' version check
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:244:11: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:244:11: note: add 'if #available' version check
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:14: error: 'tryCatch' is only available in macOS 10.15 or newer
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:14: note: add 'if #available' version check
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:46: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:46: note: add 'if #available' version check
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:270:15: error: 'tryMap' is only available in macOS 10.15 or newer
            }.tryMap { [weak self] response -> CobaltResponse in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:270:15: note: add 'if #available' version check
            }.tryMap { [weak self] response -> CobaltResponse in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:288:14: error: 'map' is only available in macOS 10.15 or newer
            .map { response in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:288:14: note: add 'if #available' version check
            .map { response in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:292:14: error: 'mapError' is only available in macOS 10.15 or newer
            .mapError { CobaltError(from: $0) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:292:14: note: add 'if #available' version check
            .mapError { CobaltError(from: $0) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:293:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:293:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:390:9: error: setter for 'authorizationGrantType' is only available in macOS 10.15 or newer
        authorizationGrantType = nil
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:390:9: note: add 'if #available' version check
        authorizationGrantType = nil
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:389:17: note: add @available attribute to enclosing instance method
    public func clearAccessToken(forHost host: String? = nil) {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
[63/63] Compiling Cobalt CobaltClient.swift
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:17:44: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    var stubbedPublishers: [CobaltRequest: AnyPublisher<CobaltResponse, CobaltError>] = [:]
                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:13:20: note: add @available attribute to enclosing class
public final class ClientService: NSObject {
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:29:72: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public func addStubbedPublisher(request: CobaltRequest, publisher: AnyPublisher<CobaltResponse, CobaltError>) {
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:29:17: note: add @available attribute to enclosing instance method
    public func addStubbedPublisher(request: CobaltRequest, publisher: AnyPublisher<CobaltResponse, CobaltError>) {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/ClientService.swift:13:20: note: add @available attribute to enclosing class
public final class ClientService: NSObject {
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:34:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published public var authorizationGrantType: OAuthenticationGrantType?
     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:36:28: error: 'AnyCancellable' is only available in macOS 10.15 or newer
    var cancellables = Set<AnyCancellable>()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:52: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:56: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:136: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                                                                                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:351:60: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func login(username: String, password: String) -> AnyPublisher<Void, CobaltError> {
                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:351:15: note: add @available attribute to enclosing instance method
    open func login(username: String, password: String) -> AnyPublisher<Void, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:360:79: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func startAuthorizationFlow(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
                                                                              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:360:15: note: add @available attribute to enclosing instance method
    open func startAuthorizationFlow(scope: [String], redirectUri: String) -> AnyPublisher<AuthorizationCodeRequest, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:364:116: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    open func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
                                                                                                                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:364:15: note: add @available attribute to enclosing instance method
    open func requestTokenFromAuthorizationCode(initialRequest request: AuthorizationCodeRequest, code: String) -> AnyPublisher<Void, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<CobaltClient, OAuthenticationGrantType?>' cannot be converted to contextual type 'KeyPath<CobaltClient, OAuthenticationGrantType?>'
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:111:16: error: 'Just' is only available in macOS 10.15 or newer
        return Just(request)
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:111:16: note: add 'if #available' version check
        return Just(request)
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:112:14: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
            .setFailureType(to: CobaltError.self)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:112:14: note: add 'if #available' version check
            .setFailureType(to: CobaltError.self)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:113:14: error: 'subscribe(on:options:)' is only available in macOS 10.15 or newer
            .subscribe(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:113:14: note: add 'if #available' version check
            .subscribe(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:114:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            .flatMap { [authProvider] aRequest in authProvider.authorize(request: aRequest) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:114:14: note: add 'if #available' version check
            .flatMap { [authProvider] aRequest in authProvider.authorize(request: aRequest) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:115:14: error: 'prefix' is only available in macOS 10.15 or newer
            .prefix(1)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:115:14: note: add 'if #available' version check
            .prefix(1)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:14: note: add 'if #available' version check
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:50: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:117:50: note: add 'if #available' version check
            .flatMap { [weak self] newRequest -> AnyPublisher<CobaltResponse, CobaltError> in
                                                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:119:28: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                    return AnyPublisher<CobaltResponse, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:119:28: note: add 'if #available' version check
                    return AnyPublisher<CobaltResponse, CobaltError>.never()
                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:122:22: error: 'tryMap' is only available in macOS 10.15 or newer
                    .tryMap { [weak self] response -> any CobaltResponse in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:122:22: note: add 'if #available' version check
                    .tryMap { [weak self] response -> any CobaltResponse in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:125:22: error: 'mapError' is only available in macOS 10.15 or newer
                    .mapError { ($0 as? CobaltError) ?? CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:125:22: note: add 'if #available' version check
                    .mapError { ($0 as? CobaltError) ?? CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:126:22: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:126:22: note: add 'if #available' version check
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:14: error: 'catch' is only available in macOS 10.15 or newer
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:14: note: add 'if #available' version check
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:64: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:129:64: note: add 'if #available' version check
            .catch { [queue, weak self, authProvider] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                                               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:22: error: 'tryCatch' is only available in macOS 10.15 or newer
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:22: note: add 'if #available' version check
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:46: error: 'AnyPublisher' is only available in macOS 10.15 or newer
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:131:46: note: add 'if #available' version check
                    .tryCatch { authError -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:138:22: error: 'mapError' is only available in macOS 10.15 or newer
                    .mapError { CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:138:22: note: add 'if #available' version check
                    .mapError { CobaltError(from: $0) }
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:139:22: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:139:22: note: add 'if #available' version check
                    .eraseToAnyPublisher()
                     ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:15: error: 'flatMap(maxPublishers:_:)' is only available in macOS 10.15 or newer
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:15: note: add 'if #available' version check
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:56: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:142:56: note: add 'if #available' version check
            }.flatMap { [queue, weak self] response -> AnyPublisher<CobaltResponse, CobaltError> in
                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:24: error: 'Just' is only available in macOS 10.15 or newer
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:24: note: add 'if #available' version check
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:39: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:39: note: add 'if #available' version check
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                      ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:76: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:149:76: note: add 'if #available' version check
                return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:151:14: error: 'receive(on:options:)' is only available in macOS 10.15 or newer
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:151:14: note: add 'if #available' version check
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:152:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:152:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:73:15: note: add @available attribute to enclosing instance method
    open func request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:20: error: 'Just' is only available in macOS 10.15 or newer
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:20: note: add 'if #available' version check
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                   ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:35: error: 'setFailureType(to:)' is only available in macOS 10.15 or newer
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:35: note: add 'if #available' version check
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                  ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:72: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:214:72: note: add 'if #available' version check
            return Just(response).setFailureType(to: CobaltError.self).eraseToAnyPublisher()
                                                                       ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:217:16: error: 'Deferred' is only available in macOS 10.15 or newer
        return Deferred { [weak self, session] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:217:16: note: add 'if #available' version check
        return Deferred { [weak self, session] in
               ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:218:13: error: 'Future' is only available in macOS 10.15 or newer
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:218:13: note: add 'if #available' version check
            Future { promise in
            ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:244:11: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:244:11: note: add 'if #available' version check
        }.eraseToAnyPublisher()
          ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:167:18: note: add @available attribute to enclosing instance method
    private func _request(_ request: CobaltRequest) -> AnyPublisher<CobaltResponse, CobaltError> {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:14: error: 'tryCatch' is only available in macOS 10.15 or newer
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:14: note: add 'if #available' version check
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:46: error: 'AnyPublisher' is only available in macOS 10.15 or newer
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:255:46: note: add 'if #available' version check
            .tryCatch { [weak self] error -> AnyPublisher<CobaltResponse, CobaltError> in
                                             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:270:15: error: 'tryMap' is only available in macOS 10.15 or newer
            }.tryMap { [weak self] response -> CobaltResponse in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:270:15: note: add 'if #available' version check
            }.tryMap { [weak self] response -> CobaltResponse in
              ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:288:14: error: 'map' is only available in macOS 10.15 or newer
            .map { response in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:288:14: note: add 'if #available' version check
            .map { response in
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:292:14: error: 'mapError' is only available in macOS 10.15 or newer
            .mapError { CobaltError(from: $0) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:292:14: note: add 'if #available' version check
            .mapError { CobaltError(from: $0) }
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:293:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:293:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:247:18: note: add @available attribute to enclosing instance method
    private func stub(request: CobaltRequest, requestID useRequestID: Int, ignoreLoggingRequest: Bool, ignoreLoggingResponse: Bool) -> AnyPublisher<CobaltResponse, CobaltError>? {
                 ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:390:9: error: setter for 'authorizationGrantType' is only available in macOS 10.15 or newer
        authorizationGrantType = nil
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:390:9: note: add 'if #available' version check
        authorizationGrantType = nil
        ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:389:17: note: add @available attribute to enclosing instance method
    public func clearAccessToken(forHost host: String? = nil) {
                ^
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Core/Base/CobaltClient.swift:15:12: note: add @available attribute to enclosing class
open class CobaltClient {
           ^
error: fatalError
Fetching https://github.com/apple/swift-log.git from cache
Fetching https://github.com/Alamofire/Alamofire.git from cache
Fetching https://github.com/mattgallagher/CwlCatchException.git from cache
Fetched https://github.com/mattgallagher/CwlCatchException.git (0.45s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git from cache
Fetched https://github.com/apple/swift-log.git (0.50s)
Fetching https://github.com/kishikawakatsumi/KeychainAccess.git from cache
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git (0.22s)
Fetching https://github.com/Quick/Nimble.git from cache
Fetched https://github.com/kishikawakatsumi/KeychainAccess.git (0.46s)
Fetching https://github.com/UnlockAgency/DebugMasking.git from cache
Fetched https://github.com/Alamofire/Alamofire.git (0.99s)
Fetched https://github.com/UnlockAgency/DebugMasking.git (0.16s)
Fetched https://github.com/Quick/Nimble.git (1.21s)
Computing version for https://github.com/UnlockAgency/DebugMasking.git
Computed https://github.com/UnlockAgency/DebugMasking.git at 1.0.1 (0.04s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 11.0.0 (0.04s)
Computing version for https://github.com/kishikawakatsumi/KeychainAccess.git
Computed https://github.com/kishikawakatsumi/KeychainAccess.git at 4.2.2 (0.06s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.3.0 (0.05s)
Computing version for https://github.com/Alamofire/Alamofire.git
Computed https://github.com/Alamofire/Alamofire.git at 5.4.1 (0.04s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.1.0 (0.04s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.1.1 (0.03s)
Creating working copy for https://github.com/UnlockAgency/DebugMasking.git
Working copy of https://github.com/UnlockAgency/DebugMasking.git resolved at 1.0.1
Creating working copy for https://github.com/kishikawakatsumi/KeychainAccess.git
Working copy of https://github.com/kishikawakatsumi/KeychainAccess.git resolved at 4.2.2
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 11.0.0
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.1.1
Creating working copy for https://github.com/Alamofire/Alamofire.git
Working copy of https://github.com/Alamofire/Alamofire.git resolved at 5.4.1
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.3.0
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.1.0
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/CobaltTests/Info.plist
BUILD FAILURE 5.9 macosSpm