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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 SwiftyTimber, reference master (142b11), with Swift 6.0 for macOS (SPM) on 4 Nov 2024 03:21:16 UTC.

Swift 6 data race errors: 1

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/iballan/SwiftyTimber.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/iballan/SwiftyTimber
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 142b11e Update ReadMe
Cloned https://github.com/iballan/SwiftyTimber.git
Revision (git rev-parse @):
142b11e82327cd37c9e740323e7604f4ec956c59
SUCCESS checkout https://github.com/iballan/SwiftyTimber.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": "swiftytimber",
      "name": "SwiftyTimber",
      "url": "https://github.com/iballan/SwiftyTimber.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftyTimber",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/iballan/SwiftyTimber.git
[1/223] Fetching swiftytimber
Fetched https://github.com/iballan/SwiftyTimber.git from cache (0.81s)
Creating working copy for https://github.com/iballan/SwiftyTimber.git
Working copy of https://github.com/iballan/SwiftyTimber.git resolved at master (142b11e)
warning: '.resolve-product-dependencies': dependency 'swiftytimber' 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/iballan/SwiftyTimber.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 SwiftyTimber TimberTree.swift
[4/6] Compiling SwiftyTimber TimberDebugTree.swift
[5/6] Compiling SwiftyTimber Timber.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyTimber/Timber.swift:37:23: warning: static property 'shared' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 35 |     ///
 36 |     /// For local usage please create a separate instance of the logger.
 37 |     public static var shared = Timber()
    |                       |- warning: static property 'shared' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'shared' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'shared' 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
 38 |
 39 |     private var forest: [TimberTree] = []
[6/6] Emitting module SwiftyTimber
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyTimber/Timber.swift:37:23: warning: static property 'shared' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 35 |     ///
 36 |     /// For local usage please create a separate instance of the logger.
 37 |     public static var shared = Timber()
    |                       |- warning: static property 'shared' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'shared' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'shared' 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
 38 |
 39 |     private var forest: [TimberTree] = []
Build complete! (6.63s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftyTimber",
  "name" : "SwiftyTimber",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftyTimber",
      "targets" : [
        "SwiftyTimber"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "SwiftyTimber",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyTimber",
      "path" : "Sources/SwiftyTimber",
      "product_memberships" : [
        "SwiftyTimber"
      ],
      "sources" : [
        "Timber.swift",
        "TimberDebugTree.swift",
        "TimberTree.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
Done.