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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/typelift/SwiftCheck.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/typelift/SwiftCheck
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 7494bed Fix Xcode 12.5 build issues (#305)
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/typelift/SwiftCheck.git
Revision (git rev-parse @):
7494bedfa42972431004a5d478dbf1fc2655e1e6
SUCCESS checkout https://github.com/typelift/SwiftCheck.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/typelift/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
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/3] Write sources
[2/3] Write swift-version-6F35C1178C84523A.txt
[4/18] Compiling SwiftCheck State.swift
[5/19] Compiling SwiftCheck Testable.swift
[6/19] Compiling SwiftCheck Test.swift
[7/19] Compiling SwiftCheck Rose.swift
[8/19] Compiling SwiftCheck Lattice.swift
[9/19] Compiling SwiftCheck Modifiers.swift
[10/19] Compiling SwiftCheck Arbitrary.swift
[11/19] Compiling SwiftCheck Cartesian.swift
[12/19] Compiling SwiftCheck Check.swift
[13/19] Compiling SwiftCheck CoArbitrary.swift
[14/19] 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.
[15/19] 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.
[16/19] 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.
[17/19] Compiling SwiftCheck Compose.swift
[18/19] Compiling SwiftCheck Gen.swift
[19/19] Compiling SwiftCheck WitnessedArbitrary.swift
Build complete! (36.68s)
Fetching https://github.com/llvm-swift/FileCheck.git
[1/479] Fetching filecheck
Fetched https://github.com/llvm-swift/FileCheck.git from cache (0.88s)
Computing version for https://github.com/llvm-swift/FileCheck.git
Computed https://github.com/llvm-swift/FileCheck.git at 0.2.6 (0.67s)
Fetching https://github.com/apple/swift-argument-parser
Fetching https://github.com/mxcl/Chalk.git
[1/81] Fetching chalk
[60/11760] Fetching chalk, swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (1.67s)
Fetched https://github.com/mxcl/Chalk.git from cache (1.67s)
Computing version for https://github.com/mxcl/Chalk.git
Computed https://github.com/mxcl/Chalk.git at 0.5.0 (0.66s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.4.0 (0.55s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.4.0
Creating working copy for https://github.com/mxcl/Chalk.git
Working copy of https://github.com/mxcl/Chalk.git resolved at 0.5.0
Creating working copy for https://github.com/llvm-swift/FileCheck.git
Working copy of https://github.com/llvm-swift/FileCheck.git resolved at 0.2.6
Build complete.
{
  "dependencies" : [
    {
      "identity" : "filecheck",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/llvm-swift/FileCheck.git"
    }
  ],
  "manifest_display_name" : "SwiftCheck",
  "name" : "SwiftCheck",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftCheck",
      "targets" : [
        "SwiftCheck"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftCheckTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCheckTests",
      "path" : "Tests/SwiftCheckTests",
      "product_dependencies" : [
        "FileCheck"
      ],
      "sources" : [
        "BooleanIdentitySpec.swift",
        "CartesianSpec.swift",
        "ComplexSpec.swift",
        "DiscardSpec.swift",
        "FailureSpec.swift",
        "FormatterSpec.swift",
        "GenSpec.swift",
        "LambdaSpec.swift",
        "ModifierSpec.swift",
        "PathSpec.swift",
        "PropertySpec.swift",
        "ReplaySpec.swift",
        "RoseSpec.swift",
        "ShrinkSpec.swift",
        "SimpleSpec.swift",
        "TestSpec.swift"
      ],
      "target_dependencies" : [
        "SwiftCheck"
      ],
      "type" : "test"
    },
    {
      "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" : "5.2"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.