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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 ISO8601DurationFormatter, reference v2.0.0 (f12307), with Swift 6.1 for Linux on 27 Apr 2025 02:58:20 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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/kkla320/ISO8601DurationFormatter.git
Reference: v2.0.0
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/kkla320/ISO8601DurationFormatter
 * tag               v2.0.0     -> FETCH_HEAD
HEAD is now at f123074 Merge pull request #8 from kkla320/develop
Cloned https://github.com/kkla320/ISO8601DurationFormatter.git
Revision (git rev-parse @):
f123074262af4e8d6840d3869b7e3a0fc7180a2a
SUCCESS checkout https://github.com/kkla320/ISO8601DurationFormatter.git at v2.0.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/kkla320/ISO8601DurationFormatter.git
https://github.com/kkla320/ISO8601DurationFormatter.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ISO8601DurationFormatter",
  "name" : "ISO8601DurationFormatter",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "ISO8601DurationFormatter",
      "targets" : [
        "ISO8601DurationFormatter"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ISO8601DurationFormatterTests",
      "module_type" : "SwiftTarget",
      "name" : "ISO8601DurationFormatterTests",
      "path" : "Tests/ISO8601DurationFormatterTests",
      "sources" : [
        "DateComponentsTests.swift",
        "ISO8601DurationFormatterTests.swift"
      ],
      "target_dependencies" : [
        "ISO8601DurationFormatter"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ISO8601DurationFormatter",
      "module_type" : "SwiftTarget",
      "name" : "ISO8601DurationFormatter",
      "path" : "Sources/ISO8601DurationFormatter",
      "product_memberships" : [
        "ISO8601DurationFormatter"
      ],
      "sources" : [
        "DateComponents+ISO8601Duration.swift",
        "DateComponents+init.swift",
        "Dictionary+mappings.swift",
        "ISO8601DurationFormatter.swift",
        "Operators.swift",
        "String+append.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/9] Compiling ISO8601DurationFormatter String+append.swift
[4/9] Compiling ISO8601DurationFormatter Operators.swift
[5/9] Compiling ISO8601DurationFormatter ISO8601DurationFormatter.swift
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:48: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:140: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                                                                                                            `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/9] Emitting module ISO8601DurationFormatter
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/Dictionary+mappings.swift:4:16: warning: static property 'dateUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
2 |
3 | extension Dictionary where Key == Character, Value == Calendar.Component {
4 |     static var dateUnitMapping: Self = ["Y": .year, "M": .month, "W": .weekOfYear, "D": .day]
  |                |- warning: static property 'dateUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'dateUnitMapping' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: add '@MainActor' to make static property 'dateUnitMapping' part of global actor 'MainActor'
  |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
5 |     static var timeUnitMapping: Self = ["H": .hour, "M": .minute, "S": .second]
6 | }
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/Dictionary+mappings.swift:5:16: warning: static property 'timeUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
3 | extension Dictionary where Key == Character, Value == Calendar.Component {
4 |     static var dateUnitMapping: Self = ["Y": .year, "M": .month, "W": .weekOfYear, "D": .day]
5 |     static var timeUnitMapping: Self = ["H": .hour, "M": .minute, "S": .second]
  |                |- warning: static property 'timeUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'timeUnitMapping' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: add '@MainActor' to make static property 'timeUnitMapping' part of global actor 'MainActor'
  |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
6 | }
7 |
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:48: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:140: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                                                                                                            `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
[7/9] Compiling ISO8601DurationFormatter DateComponents+ISO8601Duration.swift
[8/9] Compiling ISO8601DurationFormatter DateComponents+init.swift
[9/9] Compiling ISO8601DurationFormatter Dictionary+mappings.swift
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/Dictionary+mappings.swift:4:16: warning: static property 'dateUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
2 |
3 | extension Dictionary where Key == Character, Value == Calendar.Component {
4 |     static var dateUnitMapping: Self = ["Y": .year, "M": .month, "W": .weekOfYear, "D": .day]
  |                |- warning: static property 'dateUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'dateUnitMapping' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: add '@MainActor' to make static property 'dateUnitMapping' part of global actor 'MainActor'
  |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
5 |     static var timeUnitMapping: Self = ["H": .hour, "M": .minute, "S": .second]
6 | }
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/Dictionary+mappings.swift:5:16: warning: static property 'timeUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
3 | extension Dictionary where Key == Character, Value == Calendar.Component {
4 |     static var dateUnitMapping: Self = ["Y": .year, "M": .month, "W": .weekOfYear, "D": .day]
5 |     static var timeUnitMapping: Self = ["H": .hour, "M": .minute, "S": .second]
  |                |- warning: static property 'timeUnitMapping' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'timeUnitMapping' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: add '@MainActor' to make static property 'timeUnitMapping' part of global actor 'MainActor'
  |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
6 | }
7 |
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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
[2/8] Compiling ISO8601DurationFormatter String+append.swift
[3/8] Compiling ISO8601DurationFormatter Dictionary+mappings.swift
[4/8] Compiling ISO8601DurationFormatter Operators.swift
[5/8] Compiling ISO8601DurationFormatter ISO8601DurationFormatter.swift
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:48: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:140: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                                                                                                            `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/8] Compiling ISO8601DurationFormatter DateComponents+ISO8601Duration.swift
[7/8] Compiling ISO8601DurationFormatter DateComponents+init.swift
[8/8] Emitting module ISO8601DurationFormatter
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:48: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
/host/spi-builder-workspace/Sources/ISO8601DurationFormatter/ISO8601DurationFormatter.swift:70:140: error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
68 |     ///   - error: A reference that will contain a error description if the function returns false.
69 |     /// - Returns: True if the function could successfully create a [DateComponents](https://developer.apple.com/documentation/foundation/datecomponents) object. Otherwise false.
70 |     public override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
   |                                                                                                                                            `- error: cannot find type 'AutoreleasingUnsafeMutablePointer' in scope
71 |         do {
72 |             let components = try DateComponents(iso8601DurationString: string)
BUILD FAILURE 6.1 linux