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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 FontBlaster, reference master (162694), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 12:56:14 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/ArtSabintsev/Fontblaster.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ArtSabintsev/Fontblaster
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 1626941 Bump activesupport from 6.1.7.3 to 6.1.7.6 (#46)
Cloned https://github.com/ArtSabintsev/Fontblaster.git
Revision (git rev-parse @):
1626941b10428bacc3621d102142b33568fb92d2
SUCCESS checkout https://github.com/ArtSabintsev/Fontblaster.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": "fontblaster",
      "name": "FontBlaster",
      "url": "https://github.com/ArtSabintsev/Fontblaster.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Fontblaster",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/ArtSabintsev/Fontblaster.git
[1/3047] Fetching fontblaster
Fetched https://github.com/ArtSabintsev/Fontblaster.git from cache (2.86s)
Creating working copy for https://github.com/ArtSabintsev/Fontblaster.git
Working copy of https://github.com/ArtSabintsev/Fontblaster.git resolved at master (1626941)
warning: '.resolve-product-dependencies': dependency 'fontblaster' 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/ArtSabintsev/Fontblaster.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
[3/4] Compiling FontBlaster FontBlaster.swift
/Users/admin/builder/spi-builder-workspace/Sources/FontBlaster.swift:27:23: warning: static property 'debugEnabled' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 25 |
 26 |     /// Toggles debug print() statements
 27 |     public static var debugEnabled = false
    |                       |- warning: static property 'debugEnabled' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'debugEnabled' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'debugEnabled' 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
 28 |
 29 |     /// A list of the loaded fonts
/Users/admin/builder/spi-builder-workspace/Sources/FontBlaster.swift:30:23: warning: static property 'loadedFonts' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// A list of the loaded fonts
 30 |     public static var loadedFonts: [String] = []
    |                       |- warning: static property 'loadedFonts' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'loadedFonts' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'loadedFonts' 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
 31 |
 32 |     /// Load all fonts found in a specific bundle. If no value is entered, it defaults to the main bundle.
[4/4] Emitting module FontBlaster
/Users/admin/builder/spi-builder-workspace/Sources/FontBlaster.swift:27:23: warning: static property 'debugEnabled' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 25 |
 26 |     /// Toggles debug print() statements
 27 |     public static var debugEnabled = false
    |                       |- warning: static property 'debugEnabled' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'debugEnabled' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'debugEnabled' 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
 28 |
 29 |     /// A list of the loaded fonts
/Users/admin/builder/spi-builder-workspace/Sources/FontBlaster.swift:30:23: warning: static property 'loadedFonts' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// A list of the loaded fonts
 30 |     public static var loadedFonts: [String] = []
    |                       |- warning: static property 'loadedFonts' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'loadedFonts' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'loadedFonts' 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
 31 |
 32 |     /// Load all fonts found in a specific bundle. If no value is entered, it defaults to the main bundle.
Build complete! (5.99s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "FontBlaster",
  "name" : "FontBlaster",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "tvos",
      "version" : "11.0"
    },
    {
      "name" : "macos",
      "version" : "10.10"
    }
  ],
  "products" : [
    {
      "name" : "FontBlaster",
      "targets" : [
        "FontBlaster"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "FontBlaster",
      "module_type" : "SwiftTarget",
      "name" : "FontBlaster",
      "path" : "Sources",
      "product_memberships" : [
        "FontBlaster"
      ],
      "sources" : [
        "FontBlaster.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.