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 Lithium, reference v9.0.5 (0ebe10), with Swift 6.1 for Linux on 25 Apr 2025 20:28:03 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/e-sites/Lithium.git
Reference: v9.0.5
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/e-sites/Lithium
 * tag               v9.0.5     -> FETCH_HEAD
HEAD is now at 0ebe10f Swift-versions
Cloned https://github.com/e-sites/Lithium.git
Revision (git rev-parse @):
0ebe10fb24251fdc6ef2b4efcd4f8fd137de1323
SUCCESS checkout https://github.com/e-sites/Lithium.git at v9.0.5
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/e-sites/Lithium.git
https://github.com/e-sites/Lithium.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-log",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-log.git"
    }
  ],
  "manifest_display_name" : "Lithium",
  "name" : "Lithium",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "10.0"
    }
  ],
  "products" : [
    {
      "name" : "Lithium",
      "targets" : [
        "Lithium"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Lithium",
      "module_type" : "SwiftTarget",
      "name" : "Lithium",
      "path" : "Sources",
      "product_dependencies" : [
        "Logging"
      ],
      "product_memberships" : [
        "Lithium"
      ],
      "sources" : [
        "LithiumLogger.swift",
        "Styling/LogFormatter.swift",
        "Styling/LogStyle.swift",
        "Styling/LogTheme.swift",
        "Themes/DefaultLogTheme.swift",
        "Themes/EmojiLogTheme.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/apple/swift-log.git
[1/3836] Fetching swift-log
Fetched https://github.com/apple/swift-log.git from cache (0.88s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.6.3 (1.64s)
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.6.3
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/8] Compiling Logging Logging.swift
[5/8] Emitting module Logging
[6/8] Compiling Logging Locks.swift
[7/8] Compiling Logging LogHandler.swift
[8/8] Compiling Logging MetadataProvider.swift
[10/16] Emitting module Lithium
/host/spi-builder-workspace/Sources/LithiumLogger.swift:18:16: warning: stored property 'theme' of 'Sendable'-conforming struct 'LithiumLogger' has non-sendable type 'any LogTheme'; this is an error in the Swift 6 language mode
 16 | public struct LithiumLogger: LogHandler {
 17 |     public var logLevel: Logger.Level = .trace
 18 |     public var theme: LogTheme = DefaultLogTheme()
    |                `- warning: stored property 'theme' of 'Sendable'-conforming struct 'LithiumLogger' has non-sendable type 'any LogTheme'; this is an error in the Swift 6 language mode
 19 |     public let label: String
 20 |
/host/spi-builder-workspace/Sources/Styling/LogTheme.swift:11:17: note: protocol 'LogTheme' does not conform to the 'Sendable' protocol
 9 | import Foundation
10 |
11 | public protocol LogTheme {
   |                 `- note: protocol 'LogTheme' does not conform to the 'Sendable' protocol
12 |     var errorStyle: LogStyle { get }
13 |     var debugStyle: LogStyle { get }
/host/spi-builder-workspace/Sources/LithiumLogger.swift:16:15: warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 14 | @available(tvOS 10.0, *)
 15 | @available(watchOS 3.0, *)
 16 | public struct LithiumLogger: LogHandler {
    |               `- warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 17 |     public var logLevel: Logger.Level = .trace
 18 |     public var theme: LogTheme = DefaultLogTheme()
/host/spi-builder-workspace/.build/checkouts/swift-log/Sources/Logging/LogHandler.swift:209:17: note: 'log(level:message:metadata:source:file:function:line:)' declared here
133 |     ///     - function: The function the log line was emitted from.
134 |     ///     - line: The line the log message was emitted from.
135 |     func log(
    |          `- note: requirement 'log(level:message:metadata:source:file:function:line:)' declared here
136 |         level: Logger.Level,
137 |         message: Logger.Message,
    :
207 | extension LogHandler {
208 |     @available(*, deprecated, message: "You should implement this method instead of using the default implementation")
209 |     public func log(
    |                 `- note: 'log(level:message:metadata:source:file:function:line:)' declared here
210 |         level: Logger.Level,
211 |         message: Logger.Message,
[11/16] Compiling Lithium LogStyle.swift
[12/16] Compiling Lithium LogFormatter.swift
/host/spi-builder-workspace/Sources/Styling/LogFormatter.swift:87:40: error: value of type 'Thread' has no member 'value'
 85 |         func _parseThread() -> String {
 86 |             if !context.thread.isMainThread,
 87 |                 let n = context.thread.value(forKeyPath: "private.seqNum") as? NSNumber {
    |                                        `- error: value of type 'Thread' has no member 'value'
 88 |                 return "\(n)"
 89 |             }
[13/16] Compiling Lithium LithiumLogger.swift
/host/spi-builder-workspace/Sources/LithiumLogger.swift:18:16: warning: stored property 'theme' of 'Sendable'-conforming struct 'LithiumLogger' has non-sendable type 'any LogTheme'; this is an error in the Swift 6 language mode
 16 | public struct LithiumLogger: LogHandler {
 17 |     public var logLevel: Logger.Level = .trace
 18 |     public var theme: LogTheme = DefaultLogTheme()
    |                `- warning: stored property 'theme' of 'Sendable'-conforming struct 'LithiumLogger' has non-sendable type 'any LogTheme'; this is an error in the Swift 6 language mode
 19 |     public let label: String
 20 |
/host/spi-builder-workspace/Sources/Styling/LogTheme.swift:11:17: note: protocol 'LogTheme' does not conform to the 'Sendable' protocol
 9 | import Foundation
10 |
11 | public protocol LogTheme {
   |                 `- note: protocol 'LogTheme' does not conform to the 'Sendable' protocol
12 |     var errorStyle: LogStyle { get }
13 |     var debugStyle: LogStyle { get }
/host/spi-builder-workspace/Sources/LithiumLogger.swift:16:15: warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 14 | @available(tvOS 10.0, *)
 15 | @available(watchOS 3.0, *)
 16 | public struct LithiumLogger: LogHandler {
    |               `- warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 17 |     public var logLevel: Logger.Level = .trace
 18 |     public var theme: LogTheme = DefaultLogTheme()
/host/spi-builder-workspace/.build/checkouts/swift-log/Sources/Logging/LogHandler.swift:209:17: note: 'log(level:message:metadata:source:file:function:line:)' declared here
133 |     ///     - function: The function the log line was emitted from.
134 |     ///     - line: The line the log message was emitted from.
135 |     func log(
    |          `- note: requirement 'log(level:message:metadata:source:file:function:line:)' declared here
136 |         level: Logger.Level,
137 |         message: Logger.Message,
    :
207 | extension LogHandler {
208 |     @available(*, deprecated, message: "You should implement this method instead of using the default implementation")
209 |     public func log(
    |                 `- note: 'log(level:message:metadata:source:file:function:line:)' declared here
210 |         level: Logger.Level,
211 |         message: Logger.Message,
[14/16] Compiling Lithium LogTheme.swift
[15/16] Compiling Lithium DefaultLogTheme.swift
[16/16] Compiling Lithium EmojiLogTheme.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/6] Compiling Logging MetadataProvider.swift
[3/6] Compiling Logging Locks.swift
[4/6] Emitting module Logging
[5/6] Compiling Logging LogHandler.swift
[6/6] Compiling Logging Logging.swift
[8/14] Compiling Lithium EmojiLogTheme.swift
[9/14] Compiling Lithium LogStyle.swift
[10/14] Compiling Lithium LogTheme.swift
[11/14] Compiling Lithium LogFormatter.swift
/host/spi-builder-workspace/Sources/Styling/LogFormatter.swift:87:40: error: value of type 'Thread' has no member 'value'
 85 |         func _parseThread() -> String {
 86 |             if !context.thread.isMainThread,
 87 |                 let n = context.thread.value(forKeyPath: "private.seqNum") as? NSNumber {
    |                                        `- error: value of type 'Thread' has no member 'value'
 88 |                 return "\(n)"
 89 |             }
[12/14] Compiling Lithium DefaultLogTheme.swift
[13/14] Emitting module Lithium
/host/spi-builder-workspace/Sources/LithiumLogger.swift:16:15: warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 14 | @available(tvOS 10.0, *)
 15 | @available(watchOS 3.0, *)
 16 | public struct LithiumLogger: LogHandler {
    |               `- warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 17 |     public var logLevel: Logger.Level = .trace
 18 |     public var theme: LogTheme = DefaultLogTheme()
/host/spi-builder-workspace/.build/checkouts/swift-log/Sources/Logging/LogHandler.swift:209:17: note: 'log(level:message:metadata:source:file:function:line:)' declared here
133 |     ///     - function: The function the log line was emitted from.
134 |     ///     - line: The line the log message was emitted from.
135 |     func log(
    |          `- note: requirement 'log(level:message:metadata:source:file:function:line:)' declared here
136 |         level: Logger.Level,
137 |         message: Logger.Message,
    :
207 | extension LogHandler {
208 |     @available(*, deprecated, message: "You should implement this method instead of using the default implementation")
209 |     public func log(
    |                 `- note: 'log(level:message:metadata:source:file:function:line:)' declared here
210 |         level: Logger.Level,
211 |         message: Logger.Message,
[14/14] Compiling Lithium LithiumLogger.swift
/host/spi-builder-workspace/Sources/LithiumLogger.swift:16:15: warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 14 | @available(tvOS 10.0, *)
 15 | @available(watchOS 3.0, *)
 16 | public struct LithiumLogger: LogHandler {
    |               `- warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
 17 |     public var logLevel: Logger.Level = .trace
 18 |     public var theme: LogTheme = DefaultLogTheme()
/host/spi-builder-workspace/.build/checkouts/swift-log/Sources/Logging/LogHandler.swift:209:17: note: 'log(level:message:metadata:source:file:function:line:)' declared here
133 |     ///     - function: The function the log line was emitted from.
134 |     ///     - line: The line the log message was emitted from.
135 |     func log(
    |          `- note: requirement 'log(level:message:metadata:source:file:function:line:)' declared here
136 |         level: Logger.Level,
137 |         message: Logger.Message,
    :
207 | extension LogHandler {
208 |     @available(*, deprecated, message: "You should implement this method instead of using the default implementation")
209 |     public func log(
    |                 `- note: 'log(level:message:metadata:source:file:function:line:)' declared here
210 |         level: Logger.Level,
211 |         message: Logger.Message,
BUILD FAILURE 6.1 linux