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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 Spectre, reference 0.10.1 (26cc5e), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 20:49:24 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/kylef/spectre.git
Reference: 0.10.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/kylef/spectre
 * tag               0.10.1     -> FETCH_HEAD
HEAD is now at 26cc5e9 release: 0.10.1
Cloned https://github.com/kylef/spectre.git
Revision (git rev-parse @):
26cc5e9ae0947092c7139ef7ba612e34646086c7
SUCCESS checkout https://github.com/kylef/spectre.git at 0.10.1
========================================
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": "spectre",
      "name": "Spectre",
      "url": "https://github.com/kylef/spectre.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/spectre",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/kylef/spectre.git
[1/1021] Fetching spectre
Fetched https://github.com/kylef/spectre.git from cache (1.02s)
Creating working copy for https://github.com/kylef/spectre.git
Working copy of https://github.com/kylef/spectre.git resolved at 0.10.1 (26cc5e9)
warning: '.resolve-product-dependencies': dependency 'spectre' 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/kylef/spectre.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
[3/12] Compiling Spectre Expectation.swift
[4/12] Emitting module Spectre
/Users/admin/builder/spi-builder-workspace/Sources/Spectre/Global.swift:12:5: warning: let 'globalContext' is not concurrency-safe because non-'Sendable' type 'GlobalContext' may have shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 |
 12 | let globalContext: GlobalContext = {
    |     |- warning: let 'globalContext' is not concurrency-safe because non-'Sendable' type 'GlobalContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate 'globalContext' 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
 13 | #if os(macOS)
 14 |   if getenv("XCTestConfigurationFilePath") != nil {
/Users/admin/builder/spi-builder-workspace/Sources/Spectre/GlobalContext.swift:1:7: note: class 'GlobalContext' does not conform to the 'Sendable' protocol
 1 | class GlobalContext {
   |       `- note: class 'GlobalContext' does not conform to the 'Sendable' protocol
 2 |   var cases = [CaseType]()
 3 |
/Users/admin/builder/spi-builder-workspace/Sources/Spectre/Path.swift:12:23: warning: static property 'fileManager' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
 10 |   /// The underlying string representation
 11 |   internal let path: String
 12 |   internal static let fileManager = FileManager.default
    |                       |- warning: static property 'fileManager' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'fileManager' 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
 13 |
 14 |   // MARK: Init
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
[5/12] Compiling Spectre Reporter.swift
[6/13] Compiling Spectre XCTest.swift
[7/13] Compiling Spectre Reporters.swift
[8/13] Compiling Spectre Failure.swift
[9/13] Compiling Spectre Case.swift
[10/13] Compiling Spectre Global.swift
/Users/admin/builder/spi-builder-workspace/Sources/Spectre/Global.swift:12:5: warning: let 'globalContext' is not concurrency-safe because non-'Sendable' type 'GlobalContext' may have shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 |
 12 | let globalContext: GlobalContext = {
    |     |- warning: let 'globalContext' is not concurrency-safe because non-'Sendable' type 'GlobalContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate 'globalContext' 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
 13 | #if os(macOS)
 14 |   if getenv("XCTestConfigurationFilePath") != nil {
/Users/admin/builder/spi-builder-workspace/Sources/Spectre/GlobalContext.swift:1:7: note: class 'GlobalContext' does not conform to the 'Sendable' protocol
 1 | class GlobalContext {
   |       `- note: class 'GlobalContext' does not conform to the 'Sendable' protocol
 2 |   var cases = [CaseType]()
 3 |
[11/13] Compiling Spectre GlobalContext.swift
[12/13] Compiling Spectre Context.swift
[13/13] Compiling Spectre Path.swift
/Users/admin/builder/spi-builder-workspace/Sources/Spectre/Path.swift:12:23: warning: static property 'fileManager' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
 10 |   /// The underlying string representation
 11 |   internal let path: String
 12 |   internal static let fileManager = FileManager.default
    |                       |- warning: static property 'fileManager' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'fileManager' 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
 13 |
 14 |   // MARK: Init
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
Build complete! (17.78s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Spectre",
  "name" : "Spectre",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Spectre",
      "targets" : [
        "Spectre"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "SpectreTests",
      "module_type" : "SwiftTarget",
      "name" : "SpectreTests",
      "path" : "Tests/SpectreTests",
      "sources" : [
        "ExpectationSpec.swift",
        "FailureSpec.swift",
        "XCTest.swift"
      ],
      "target_dependencies" : [
        "Spectre"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Spectre",
      "module_type" : "SwiftTarget",
      "name" : "Spectre",
      "path" : "Sources/Spectre",
      "product_memberships" : [
        "Spectre"
      ],
      "sources" : [
        "Case.swift",
        "Context.swift",
        "Expectation.swift",
        "Failure.swift",
        "Global.swift",
        "GlobalContext.swift",
        "Path.swift",
        "Reporter.swift",
        "Reporters.swift",
        "XCTest.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.