The Swift Package Index logo.Swift Package Index

Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build SwiftParse, reference master (a57e82), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 12:45:55 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mgadda/swift-parse.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mgadda/swift-parse
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at a57e826 Merge pull request #8 from niw/fix_warnings
Cloned https://github.com/mgadda/swift-parse.git
Revision (git rev-parse @):
a57e8262e16aa2f91f47a7dc0472afb2c9ba234b
SUCCESS checkout https://github.com/mgadda/swift-parse.git at master
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "swift-parse",
      "name": "SwiftParse",
      "url": "https://github.com/mgadda/swift-parse.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-parse",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/mgadda/swift-parse.git
[1/541] Fetching swift-parse
Fetched https://github.com/mgadda/swift-parse.git from cache (0.71s)
Creating working copy for https://github.com/mgadda/swift-parse.git
Working copy of https://github.com/mgadda/swift-parse.git resolved at master (a57e826)
warning: '.resolve-product-dependencies': dependency 'swift-parse' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mgadda/swift-parse.git
https://github.com/mgadda/swift-parse.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftParse",
  "name" : "SwiftParse",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftParse",
      "targets" : [
        "SwiftParse"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftParseTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftParseTests",
      "path" : "Tests/SwiftParseTests",
      "sources" : [
        "ParserHelpers.swift",
        "ParsersTests.swift",
        "StringParserTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SwiftParse"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftParse",
      "module_type" : "SwiftTarget",
      "name" : "SwiftParse",
      "path" : "Sources/SwiftParse",
      "product_memberships" : [
        "SwiftParse"
      ],
      "sources" : [
        "Either.swift",
        "Map.swift",
        "Nothing.swift",
        "Operators.swift",
        "OptionalExtensions.swift",
        "Parsers.swift",
        "StringParsers.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/10] Compiling SwiftParse Parsers.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:28:14: warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 26 | /// and location of the failure.
 27 | public struct ParseError<Element> : Error {
 28 |   public let at: AnyCollection<Element>
    |              `- warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 29 |   public let reason: String?
 30 |   public init(at: AnyCollection<Element>, reason: String? = .none) {
Swift.AnyCollection:1:23: note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
1 | @frozen public struct AnyCollection<Element> {
  |                       `- note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
2 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:86:12: error: generic parameter 'InputType' is not used in function signature
 84 | }
 85 |
 86 | func match<InputType: Collection>(range: ClosedRange<InputType.Element>) -> StandardParser<InputType, InputType.Element> {
    |            `- error: generic parameter 'InputType' is not used in function signature
 87 |   return { source in
 88 |     guard let first = source.first else {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/10] Compiling SwiftParse Either.swift
[5/10] Emitting module SwiftParse
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:28:14: warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 26 | /// and location of the failure.
 27 | public struct ParseError<Element> : Error {
 28 |   public let at: AnyCollection<Element>
    |              `- warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 29 |   public let reason: String?
 30 |   public init(at: AnyCollection<Element>, reason: String? = .none) {
Swift.AnyCollection:1:23: note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
1 | @frozen public struct AnyCollection<Element> {
  |                       `- note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
2 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:86:12: error: generic parameter 'InputType' is not used in function signature
 84 | }
 85 |
 86 | func match<InputType: Collection>(range: ClosedRange<InputType.Element>) -> StandardParser<InputType, InputType.Element> {
    |            `- error: generic parameter 'InputType' is not used in function signature
 87 |   return { source in
 88 |     guard let first = source.first else {
[6/10] Compiling SwiftParse Nothing.swift
[7/10] Compiling SwiftParse Map.swift
[8/10] Compiling SwiftParse OptionalExtensions.swift
[9/10] Compiling SwiftParse StringParsers.swift
[10/10] Compiling SwiftParse Operators.swift
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/9] Compiling SwiftParse OptionalExtensions.swift
[3/9] Compiling SwiftParse StringParsers.swift
[4/9] Compiling SwiftParse Nothing.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/9] Compiling SwiftParse Operators.swift
[6/9] Compiling SwiftParse Map.swift
[7/9] Compiling SwiftParse Either.swift
[8/9] Emitting module SwiftParse
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:28:14: warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 26 | /// and location of the failure.
 27 | public struct ParseError<Element> : Error {
 28 |   public let at: AnyCollection<Element>
    |              `- warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 29 |   public let reason: String?
 30 |   public init(at: AnyCollection<Element>, reason: String? = .none) {
Swift.AnyCollection:1:23: note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
1 | @frozen public struct AnyCollection<Element> {
  |                       `- note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
2 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:86:12: error: generic parameter 'InputType' is not used in function signature
 84 | }
 85 |
 86 | func match<InputType: Collection>(range: ClosedRange<InputType.Element>) -> StandardParser<InputType, InputType.Element> {
    |            `- error: generic parameter 'InputType' is not used in function signature
 87 |   return { source in
 88 |     guard let first = source.first else {
[9/9] Compiling SwiftParse Parsers.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:28:14: warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 26 | /// and location of the failure.
 27 | public struct ParseError<Element> : Error {
 28 |   public let at: AnyCollection<Element>
    |              `- warning: stored property 'at' of 'Sendable'-conforming generic struct 'ParseError' has non-sendable type 'AnyCollection<Element>'; this is an error in the Swift 6 language mode
 29 |   public let reason: String?
 30 |   public init(at: AnyCollection<Element>, reason: String? = .none) {
Swift.AnyCollection:1:23: note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
1 | @frozen public struct AnyCollection<Element> {
  |                       `- note: generic struct 'AnyCollection' does not conform to the 'Sendable' protocol
2 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftParse/Parsers.swift:86:12: error: generic parameter 'InputType' is not used in function signature
 84 | }
 85 |
 86 | func match<InputType: Collection>(range: ClosedRange<InputType.Element>) -> StandardParser<InputType, InputType.Element> {
    |            `- error: generic parameter 'InputType' is not used in function signature
 87 |   return { source in
 88 |     guard let first = source.first else {
BUILD FAILURE 6.1 macosSpm