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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 Alfred, reference master (eadbfe), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 15:00:28 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/kiliankoe/Alfred.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/kiliankoe/Alfred
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at eadbfe0 Merge pull request #12 from Yerkenabildin/fix-modifiers
Cloned https://github.com/kiliankoe/Alfred.git
Revision (git rev-parse @):
eadbfe0b23cbd2f067643546bf49199595729d8b
SUCCESS checkout https://github.com/kiliankoe/Alfred.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": "alfred",
      "name": "Alfred",
      "url": "https://github.com/kiliankoe/Alfred.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Alfred",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/kiliankoe/Alfred.git
[1/171] Fetching alfred
Fetched https://github.com/kiliankoe/Alfred.git from cache (0.71s)
Creating working copy for https://github.com/kiliankoe/Alfred.git
Working copy of https://github.com/kiliankoe/Alfred.git resolved at master (eadbfe0)
warning: '.resolve-product-dependencies': dependency 'alfred' 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/kiliankoe/Alfred.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
[3/9] Compiling Alfred Icon.swift
[4/9] Compiling Alfred Item.swift
[5/9] Compiling Alfred ModifierAction.swift
[6/9] Compiling Alfred Response.swift
/Users/admin/builder/spi-builder-workspace/Sources/Alfred/Response.swift:23:16: warning: static property 'encoder' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
21 |     }
22 |
23 |     static var encoder: JSONEncoder = {
   |                |- warning: static property 'encoder' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'encoder' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'encoder' 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
24 |         let encoder = JSONEncoder()
25 |         encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
[7/9] Compiling Alfred Argument.swift
[8/9] Emitting module Alfred
/Users/admin/builder/spi-builder-workspace/Sources/Alfred/Response.swift:23:16: warning: static property 'encoder' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
21 |     }
22 |
23 |     static var encoder: JSONEncoder = {
   |                |- warning: static property 'encoder' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'encoder' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'encoder' 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
24 |         let encoder = JSONEncoder()
25 |         encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
[9/9] Compiling Alfred Environment.swift
/Users/admin/builder/spi-builder-workspace/Sources/Alfred/Environment.swift:183:29: warning: 'substring(with:)' is deprecated: Please use String slicing subscript.
181 |                 let startIdx = rgba.index(rgba.startIndex, offsetBy: result.range.location)
182 |                 let endIdx = rgba.index(startIdx, offsetBy: result.range.length)
183 |                 return rgba.substring(with: startIdx..<endIdx)
    |                             `- warning: 'substring(with:)' is deprecated: Please use String slicing subscript.
184 |             }
185 |             .compactMap { Double($0).map({ CGFloat($0) }) }
Build complete! (10.54s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Alfred",
  "name" : "Alfred",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "Alfred",
      "targets" : [
        "Alfred"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AlfredTests",
      "module_type" : "SwiftTarget",
      "name" : "AlfredTests",
      "path" : "Tests/AlfredTests",
      "sources" : [
        "ArgumentTests.swift",
        "EnvironmentTests.swift",
        "Helper.swift",
        "IconTests.swift",
        "ItemTests.swift",
        "ModifierActionTests.swift",
        "ResponseTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Alfred"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Alfred",
      "module_type" : "SwiftTarget",
      "name" : "Alfred",
      "path" : "Sources/Alfred",
      "product_memberships" : [
        "Alfred"
      ],
      "sources" : [
        "Argument.swift",
        "Environment.swift",
        "Icon.swift",
        "Item.swift",
        "ModifierAction.swift",
        "Response.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.