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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 EmbeddedStringsKit, reference main (20a1e3), with Swift 6.0 for macOS (SPM) on 1 Dec 2024 01:21:47 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 -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.58.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/FluidGroup/EmbeddedStringsKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/FluidGroup/EmbeddedStringsKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 20a1e37 { }  (#1)
Cloned https://github.com/FluidGroup/EmbeddedStringsKit.git
Revision (git rev-parse @):
20a1e370cd3bc55be3a3743a9b9295811970d6b8
SUCCESS checkout https://github.com/FluidGroup/EmbeddedStringsKit.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": "embeddedstringskit",
      "name": "EmbeddedStringsKit",
      "url": "https://github.com/FluidGroup/EmbeddedStringsKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/EmbeddedStringsKit",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/FluidGroup/EmbeddedStringsKit.git
[1/44] Fetching embeddedstringskit
Fetched https://github.com/FluidGroup/EmbeddedStringsKit.git from cache (0.66s)
Creating working copy for https://github.com/FluidGroup/EmbeddedStringsKit.git
Working copy of https://github.com/FluidGroup/EmbeddedStringsKit.git resolved at main (20a1e37)
warning: '.resolve-product-dependencies': dependency 'embeddedstringskit' 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/FluidGroup/EmbeddedStringsKit.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "EmbeddedStringsKit",
  "name" : "EmbeddedStringsKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "EmbeddedStringsKit",
      "targets" : [
        "EmbeddedStringsKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "EmbeddedStringsKitTests",
      "module_type" : "SwiftTarget",
      "name" : "EmbeddedStringsKitTests",
      "path" : "Tests/EmbeddedStringsKitTests",
      "sources" : [
        "EmbeddedStringsKitTests.swift"
      ],
      "target_dependencies" : [
        "EmbeddedStringsKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EmbeddedStringsKit",
      "module_type" : "SwiftTarget",
      "name" : "EmbeddedStringsKit",
      "path" : "Sources/EmbeddedStringsKit",
      "product_memberships" : [
        "EmbeddedStringsKit"
      ],
      "sources" : [
        "EmbeddedStringsKit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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 -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/4] Compiling EmbeddedStringsKit EmbeddedStringsKit.swift
/Users/admin/builder/spi-builder-workspace/Sources/EmbeddedStringsKit/EmbeddedStringsKit.swift:43:21: warning: static property 'ja' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
 31 | }
 32 |
 33 | public struct LocalizedStringsLanguage: Hashable {
    |               `- note: consider making struct 'LocalizedStringsLanguage' conform to the 'Sendable' protocol
 34 |
 35 |   public let identifier: String
    :
 41 |   }
 42 |
 43 |   public static let ja = Self.init(identifier: "ja")
    |                     |- warning: static property 'ja' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'ja' 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
 44 |   public static let en = Self.init(identifier: "en")
 45 |
/Users/admin/builder/spi-builder-workspace/Sources/EmbeddedStringsKit/EmbeddedStringsKit.swift:44:21: warning: static property 'en' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
 31 | }
 32 |
 33 | public struct LocalizedStringsLanguage: Hashable {
    |               `- note: consider making struct 'LocalizedStringsLanguage' conform to the 'Sendable' protocol
 34 |
 35 |   public let identifier: String
    :
 42 |
 43 |   public static let ja = Self.init(identifier: "ja")
 44 |   public static let en = Self.init(identifier: "en")
    |                     |- warning: static property 'en' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'en' 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
 45 |
 46 | }
[4/4] Emitting module EmbeddedStringsKit
/Users/admin/builder/spi-builder-workspace/Sources/EmbeddedStringsKit/EmbeddedStringsKit.swift:43:21: warning: static property 'ja' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
 31 | }
 32 |
 33 | public struct LocalizedStringsLanguage: Hashable {
    |               `- note: consider making struct 'LocalizedStringsLanguage' conform to the 'Sendable' protocol
 34 |
 35 |   public let identifier: String
    :
 41 |   }
 42 |
 43 |   public static let ja = Self.init(identifier: "ja")
    |                     |- warning: static property 'ja' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'ja' 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
 44 |   public static let en = Self.init(identifier: "en")
 45 |
/Users/admin/builder/spi-builder-workspace/Sources/EmbeddedStringsKit/EmbeddedStringsKit.swift:44:21: warning: static property 'en' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
 31 | }
 32 |
 33 | public struct LocalizedStringsLanguage: Hashable {
    |               `- note: consider making struct 'LocalizedStringsLanguage' conform to the 'Sendable' protocol
 34 |
 35 |   public let identifier: String
    :
 42 |
 43 |   public static let ja = Self.init(identifier: "ja")
 44 |   public static let en = Self.init(identifier: "en")
    |                     |- warning: static property 'en' is not concurrency-safe because non-'Sendable' type 'LocalizedStringsLanguage' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'en' 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
 45 |
 46 | }
Build complete! (5.47s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "EmbeddedStringsKit",
  "name" : "EmbeddedStringsKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "EmbeddedStringsKit",
      "targets" : [
        "EmbeddedStringsKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "EmbeddedStringsKitTests",
      "module_type" : "SwiftTarget",
      "name" : "EmbeddedStringsKitTests",
      "path" : "Tests/EmbeddedStringsKitTests",
      "sources" : [
        "EmbeddedStringsKitTests.swift"
      ],
      "target_dependencies" : [
        "EmbeddedStringsKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EmbeddedStringsKit",
      "module_type" : "SwiftTarget",
      "name" : "EmbeddedStringsKit",
      "path" : "Sources/EmbeddedStringsKit",
      "product_memberships" : [
        "EmbeddedStringsKit"
      ],
      "sources" : [
        "EmbeddedStringsKit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.