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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

Successful build of TaskUtilities, reference main (7c6cc1), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 23:10:47 UTC.

Swift 6 data race errors: 4

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/samalone/task-utilities.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/samalone/task-utilities
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7c6cc16 Fix README syntax
Cloned https://github.com/samalone/task-utilities.git
Revision (git rev-parse @):
7c6cc16c2bd86422a2771b133dabff69b0ddfb16
SUCCESS checkout https://github.com/samalone/task-utilities.git at main
========================================
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": "task-utilities",
      "name": "TaskUtilities",
      "url": "https://github.com/samalone/task-utilities.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/task-utilities",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/samalone/task-utilities.git
[1/32] Fetching task-utilities
Fetched https://github.com/samalone/task-utilities.git from cache (0.64s)
Creating working copy for https://github.com/samalone/task-utilities.git
Working copy of https://github.com/samalone/task-utilities.git resolved at main (7c6cc16)
warning: '.resolve-product-dependencies': dependency 'task-utilities' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/samalone/task-utilities.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/6] Compiling TaskUtilities TaskPath.swift
macro expansion @TaskLocal:1:19: warning: static property '$current' is not concurrency-safe because non-'Sendable' type 'TaskLocal<TaskPath>' may have shared mutable state; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                   |- warning: static property '$current' is not concurrency-safe because non-'Sendable' type 'TaskLocal<TaskPath>' may have shared mutable state; this is an error in the Swift 6 language mode
   |  |                   |- note: annotate '$current' with '@MainActor' if property should only be accessed from the main actor
   |  |                   `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:1:19: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:1:51: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                                                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:1:51: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                                                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:3:18: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | {
   |2 |     get {
   |3 |         $current.get()
   |  |                  `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   |4 |     }
   |5 | }
   +--------------------------------------------------------------------
23 |
24 |     let path: String
/Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:33:35: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
23 |
   :
31 |     public static func with<R>(name: String, block: () async throws -> R) async rethrows -> R {
32 |         let p = current.path
33 |         return try await $current.withValue(TaskPath(path: p.isEmpty ? name : p + " > " + name), operation: block)
   |                                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
34 |     }
35 |
[4/6] Emitting module TaskUtilities
macro expansion @TaskLocal:1:19: warning: static property '$current' is not concurrency-safe because non-'Sendable' type 'TaskLocal<TaskPath>' may have shared mutable state; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                   |- warning: static property '$current' is not concurrency-safe because non-'Sendable' type 'TaskLocal<TaskPath>' may have shared mutable state; this is an error in the Swift 6 language mode
   |  |                   |- note: annotate '$current' with '@MainActor' if property should only be accessed from the main actor
   |  |                   `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:1:19: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:1:51: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                                                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   +--------------------------------------------------------------------
23 |
24 |     let path: String
macro expansion @TaskLocal:1:51: warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
`- /Users/admin/builder/spi-builder-workspace/Sources/TaskUtilities/TaskPath.swift:22:61: note: expanded code originates here
19 | /// You can then use `TaskPath.current` to display the task
20 | /// context of the executing code.
21 | public struct TaskPath: CustomStringConvertible {
   |               `- note: consider making struct 'TaskPath' conform to the 'Sendable' protocol
22 |     @TaskLocal public static var current: TaskPath = .init()
   +--- macro expansion @TaskLocal -------------------------------------
   |1 | public static let $current: TaskLocal<TaskPath> = TaskLocal(wrappedValue: .init())
   |  |                                                   `- warning: type 'TaskPath' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
   +--------------------------------------------------------------------
23 |
24 |     let path: String
[5/6] Compiling TaskUtilities LockedValue.swift
[6/6] Compiling TaskUtilities RecursiveTaskLock.swift
Build complete! (7.21s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TaskUtilities",
  "name" : "TaskUtilities",
  "path" : "/Users/admin/builder/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" : "TaskUtilities",
      "targets" : [
        "TaskUtilities"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TaskUtilitiesTests",
      "module_type" : "SwiftTarget",
      "name" : "TaskUtilitiesTests",
      "path" : "Tests/TaskUtilitiesTests",
      "sources" : [
        "TaskUtilitiesTests.swift"
      ],
      "target_dependencies" : [
        "TaskUtilities"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TaskUtilities",
      "module_type" : "SwiftTarget",
      "name" : "TaskUtilities",
      "path" : "Sources/TaskUtilities",
      "product_memberships" : [
        "TaskUtilities"
      ],
      "sources" : [
        "LockedValue.swift",
        "RecursiveTaskLock.swift",
        "TaskPath.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.