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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 c, reference main (36eeea), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 00:46:08 UTC.

Swift 6 data race errors: 4

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/0xOpenBytes/c.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/0xOpenBytes/c
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 36eeea2 Update README.md
Cloned https://github.com/0xOpenBytes/c.git
Revision (git rev-parse @):
36eeea26335183a759006d6e7a32fbf19fbe3cb8
SUCCESS checkout https://github.com/0xOpenBytes/c.git at main
Fetching https://github.com/0xOpenBytes/t
[1/368] Fetching t
Fetched https://github.com/0xOpenBytes/t from cache (0.94s)
Computing version for https://github.com/0xOpenBytes/t
Computed https://github.com/0xOpenBytes/t at 1.0.4 (0.64s)
Creating working copy for https://github.com/0xOpenBytes/t
Working copy of https://github.com/0xOpenBytes/t resolved at 1.0.4
========================================
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": "c",
      "name": "c",
      "url": "https://github.com/0xOpenBytes/c.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/c",
      "dependencies": [
        {
          "identity": "t",
          "name": "t",
          "url": "https://github.com/0xOpenBytes/t",
          "version": "1.0.4",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/t",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/0xOpenBytes/c.git
[5/237] Fetching c
Fetched https://github.com/0xOpenBytes/c.git from cache (0.79s)
Fetching https://github.com/0xOpenBytes/t from cache
Fetched https://github.com/0xOpenBytes/t from cache (0.47s)
Computing version for https://github.com/0xOpenBytes/t
Computed https://github.com/0xOpenBytes/t at 1.0.4 (0.02s)
Creating working copy for https://github.com/0xOpenBytes/t
Working copy of https://github.com/0xOpenBytes/t resolved at 1.0.4
Creating working copy for https://github.com/0xOpenBytes/c.git
Working copy of https://github.com/0xOpenBytes/c.git resolved at main (36eeea2)
warning: '.resolve-product-dependencies': dependency 'c' is not used by any target
Found 1 product dependencies
  - t
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/0xOpenBytes/c.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...
[0/3] Write sources
[2/3] Write swift-version--7754E27361AE5C74.txt
[4/9] Compiling t t.swift
[5/9] Compiling t t+Structure.swift
[6/9] Compiling t t+Factories.swift
[7/9] Compiling t t+Assertion.swift
[8/9] Emitting module t
[9/9] Compiling t t+Logging.swift
[10/11] Compiling c c.swift
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:50:20: warning: stored property 'keys' of 'Sendable'-conforming generic struct 'MissingRequiredKeysError' has non-sendable type 'Set<Key>'; this is an error in the Swift 6 language mode
 46 | public enum c {
 47 |     /// `Error` that reports the missing keys
 48 |     public struct MissingRequiredKeysError<Key: Hashable>: LocalizedError {
    |                                            `- note: consider making generic parameter 'Key' conform to the 'Sendable' protocol
 49 |         /// Required keys
 50 |         public let keys: Set<Key>
    |                    `- warning: stored property 'keys' of 'Sendable'-conforming generic struct 'MissingRequiredKeysError' has non-sendable type 'Set<Key>'; this is an error in the Swift 6 language mode
 51 |
 52 |         /// init for `MissingRequiredKeysError<Key>`
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:69:20: warning: stored property 'actualValue' of 'Sendable'-conforming generic struct 'InvalidTypeError' has non-sendable type 'Any?'; this is an error in the Swift 6 language mode
 67 |
 68 |         // Actual Value
 69 |         public let actualValue: Any?
    |                    `- warning: stored property 'actualValue' of 'Sendable'-conforming generic struct 'InvalidTypeError' has non-sendable type 'Any?'; this is an error in the Swift 6 language mode
 70 |
 71 |         /// init for `InvalidTypeError<Key>`
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:373:24: warning: static property 'lock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
371 |
372 | public extension c {
373 |     private static var lock = NSLock()
    |                        |- warning: static property 'lock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'lock' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'lock' 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
374 |     private static var caches: [AnyHashable: AnyCacheable] = [:]
375 |
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:374:24: warning: static property 'caches' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
372 | public extension c {
373 |     private static var lock = NSLock()
374 |     private static var caches: [AnyHashable: AnyCacheable] = [:]
    |                        |- warning: static property 'caches' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'caches' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'caches' 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
375 |
376 |     /// Checks if the given `key` has a Cache or not
[11/11] Emitting module c
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:50:20: warning: stored property 'keys' of 'Sendable'-conforming generic struct 'MissingRequiredKeysError' has non-sendable type 'Set<Key>'; this is an error in the Swift 6 language mode
 46 | public enum c {
 47 |     /// `Error` that reports the missing keys
 48 |     public struct MissingRequiredKeysError<Key: Hashable>: LocalizedError {
    |                                            `- note: consider making generic parameter 'Key' conform to the 'Sendable' protocol
 49 |         /// Required keys
 50 |         public let keys: Set<Key>
    |                    `- warning: stored property 'keys' of 'Sendable'-conforming generic struct 'MissingRequiredKeysError' has non-sendable type 'Set<Key>'; this is an error in the Swift 6 language mode
 51 |
 52 |         /// init for `MissingRequiredKeysError<Key>`
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:69:20: warning: stored property 'actualValue' of 'Sendable'-conforming generic struct 'InvalidTypeError' has non-sendable type 'Any?'; this is an error in the Swift 6 language mode
 67 |
 68 |         // Actual Value
 69 |         public let actualValue: Any?
    |                    `- warning: stored property 'actualValue' of 'Sendable'-conforming generic struct 'InvalidTypeError' has non-sendable type 'Any?'; this is an error in the Swift 6 language mode
 70 |
 71 |         /// init for `InvalidTypeError<Key>`
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:373:24: warning: static property 'lock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
371 |
372 | public extension c {
373 |     private static var lock = NSLock()
    |                        |- warning: static property 'lock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'lock' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'lock' 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
374 |     private static var caches: [AnyHashable: AnyCacheable] = [:]
375 |
/Users/admin/builder/spi-builder-workspace/Sources/c/c.swift:374:24: warning: static property 'caches' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
372 | public extension c {
373 |     private static var lock = NSLock()
374 |     private static var caches: [AnyHashable: AnyCacheable] = [:]
    |                        |- warning: static property 'caches' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'caches' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'caches' 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
375 |
376 |     /// Checks if the given `key` has a Cache or not
Build complete! (7.67s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "t",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/0xOpenBytes/t"
    }
  ],
  "manifest_display_name" : "c",
  "name" : "c",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    },
    {
      "name" : "watchos",
      "version" : "7.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "c",
      "targets" : [
        "c"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "cTests",
      "module_type" : "SwiftTarget",
      "name" : "cTests",
      "path" : "Tests/cTests",
      "sources" : [
        "cTests.swift"
      ],
      "target_dependencies" : [
        "c"
      ],
      "type" : "test"
    },
    {
      "c99name" : "c",
      "module_type" : "SwiftTarget",
      "name" : "c",
      "path" : "Sources/c",
      "product_dependencies" : [
        "t"
      ],
      "product_memberships" : [
        "c"
      ],
      "sources" : [
        "c.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.