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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 SwiftCheck with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/bow-swift/SwiftCheck.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/bow-swift/SwiftCheck
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 748359f Update Package.swift
Submodule path 'Carthage/Checkouts/FileCheck': checked out 'bd9cb30ceee1f21c02f51a7168f58471449807d8'
Submodule 'Carthage/Checkouts/FileCheck' (https://github.com/trill-lang/FileCheck.git) registered for path 'Carthage/Checkouts/FileCheck'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/FileCheck'...
Cloned https://github.com/bow-swift/SwiftCheck.git
Revision (git rev-parse @):
748359f9a95edf94d0c4664102f104f56b1ff1fb
SUCCESS checkout https://github.com/bow-swift/SwiftCheck.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/bow-swift/SwiftCheck.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a 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-6F35C1178C84523A.txt
[3/17] Compiling SwiftCheck Testable.swift
[4/18] Compiling SwiftCheck Rose.swift
[5/18] Compiling SwiftCheck Test.swift
[6/18] Compiling SwiftCheck Compose.swift
[7/18] Compiling SwiftCheck Gen.swift
[8/18] Compiling SwiftCheck Lattice.swift
[9/18] Compiling SwiftCheck Modifiers.swift
[10/18] Compiling SwiftCheck State.swift
[11/18] Compiling SwiftCheck Property.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCheck/Random.swift:103:13: warning: var 'theStdGen' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
101 | }
102 |
103 | private var theStdGen : StdGen = mkStdRNG(0)
    |             |- warning: var 'theStdGen' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'theStdGen' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'theStdGen' 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
104 |
105 | /// A library-provided standard random number generator.
[12/18] Compiling SwiftCheck Random.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCheck/Random.swift:103:13: warning: var 'theStdGen' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
101 | }
102 |
103 | private var theStdGen : StdGen = mkStdRNG(0)
    |             |- warning: var 'theStdGen' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'theStdGen' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'theStdGen' 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
104 |
105 | /// A library-provided standard random number generator.
[13/18] Compiling SwiftCheck Check.swift
[14/18] Compiling SwiftCheck CoArbitrary.swift
[15/18] Emitting module SwiftCheck
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCheck/Random.swift:103:13: warning: var 'theStdGen' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
101 | }
102 |
103 | private var theStdGen : StdGen = mkStdRNG(0)
    |             |- warning: var 'theStdGen' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'theStdGen' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'theStdGen' 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
104 |
105 | /// A library-provided standard random number generator.
[16/18] Compiling SwiftCheck Arbitrary.swift
[17/18] Compiling SwiftCheck Cartesian.swift
[18/18] Compiling SwiftCheck WitnessedArbitrary.swift
Build complete! (27.52s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftCheck",
  "name" : "SwiftCheck",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftCheck",
      "targets" : [
        "SwiftCheck"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftCheck",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCheck",
      "path" : "Sources/SwiftCheck",
      "product_memberships" : [
        "SwiftCheck"
      ],
      "sources" : [
        "Arbitrary.swift",
        "Cartesian.swift",
        "Check.swift",
        "CoArbitrary.swift",
        "Compose.swift",
        "Gen.swift",
        "Lattice.swift",
        "Modifiers.swift",
        "Property.swift",
        "Random.swift",
        "Rose.swift",
        "State.swift",
        "Test.swift",
        "Testable.swift",
        "WitnessedArbitrary.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.