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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 TimeLapse, reference master (3150a4), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 10:04:30 UTC.

Swift 6 data race errors: 2

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/aguilarpgc/timelapse.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/aguilarpgc/timelapse
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 3150a43 improved readability
Cloned https://github.com/aguilarpgc/timelapse.git
Revision (git rev-parse @):
3150a438d45ea056d72211e3f595197e095f673c
SUCCESS checkout https://github.com/aguilarpgc/timelapse.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": "timelapse",
      "name": "TimeLapse",
      "url": "https://github.com/aguilarpgc/timelapse.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/timelapse",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/aguilarpgc/timelapse.git
[1/300] Fetching timelapse
Fetched https://github.com/aguilarpgc/timelapse.git from cache (5.64s)
Creating working copy for https://github.com/aguilarpgc/timelapse.git
Working copy of https://github.com/aguilarpgc/timelapse.git resolved at master (3150a43)
warning: '.resolve-product-dependencies': dependency 'timelapse' 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/aguilarpgc/timelapse.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
[3/5] Compiling TimeLapse TimeLapseFormat.swift
[4/5] Emitting module TimeLapse
/Users/admin/builder/spi-builder-workspace/Sources/TimeLapse/TimeLapse.swift:11:23: warning: static property 'format' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | public struct TimeLapse {
11 |     public static var format: TimeLapseFormat = TimeLapseDefaultFormat()
   |                       |- warning: static property 'format' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'format' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'format' 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
12 |     public static var justNowSecondsLimit: Int = 5
13 |
/Users/admin/builder/spi-builder-workspace/Sources/TimeLapse/TimeLapse.swift:12:23: warning: static property 'justNowSecondsLimit' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
10 | public struct TimeLapse {
11 |     public static var format: TimeLapseFormat = TimeLapseDefaultFormat()
12 |     public static var justNowSecondsLimit: Int = 5
   |                       |- warning: static property 'justNowSecondsLimit' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'justNowSecondsLimit' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'justNowSecondsLimit' 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
13 |
14 |     public static func setDefaultFormat() {
[5/5] Compiling TimeLapse TimeLapse.swift
/Users/admin/builder/spi-builder-workspace/Sources/TimeLapse/TimeLapse.swift:11:23: warning: static property 'format' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | public struct TimeLapse {
11 |     public static var format: TimeLapseFormat = TimeLapseDefaultFormat()
   |                       |- warning: static property 'format' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'format' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'format' 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
12 |     public static var justNowSecondsLimit: Int = 5
13 |
/Users/admin/builder/spi-builder-workspace/Sources/TimeLapse/TimeLapse.swift:12:23: warning: static property 'justNowSecondsLimit' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
10 | public struct TimeLapse {
11 |     public static var format: TimeLapseFormat = TimeLapseDefaultFormat()
12 |     public static var justNowSecondsLimit: Int = 5
   |                       |- warning: static property 'justNowSecondsLimit' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'justNowSecondsLimit' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'justNowSecondsLimit' 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
13 |
14 |     public static func setDefaultFormat() {
Build complete! (5.88s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TimeLapse",
  "name" : "TimeLapse",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TimeLapse",
      "targets" : [
        "TimeLapse"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TimeLapseTests",
      "module_type" : "SwiftTarget",
      "name" : "TimeLapseTests",
      "path" : "Tests/TimeLapseTests",
      "sources" : [
        "TimeLapseTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "TimeLapse"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TimeLapse",
      "module_type" : "SwiftTarget",
      "name" : "TimeLapse",
      "path" : "Sources/TimeLapse",
      "product_memberships" : [
        "TimeLapse"
      ],
      "sources" : [
        "TimeLapse.swift",
        "TimeLapseFormat.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.