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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 QuickSwiftCheck, reference master (a84203), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 23:01:41 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.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: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/akashivskyy/quick-swift-check.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/akashivskyy/quick-swift-check
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at a842036 Deprecate the project
Cloned https://github.com/akashivskyy/quick-swift-check.git
Revision (git rev-parse @):
a842036079c699c29ecbb95748fe0c975eb23881
SUCCESS checkout https://github.com/akashivskyy/quick-swift-check.git at master
Fetching https://github.com/Quick/Quick
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
Fetching https://github.com/llvm-swift/FileCheck.git
Fetching https://github.com/typelift/SwiftCheck
Fetching https://github.com/mxcl/Chalk.git
Fetching https://github.com/Quick/Nimble
Fetching https://github.com/apple/swift-argument-parser from cache
[1/81] Fetching chalk
[13/1338] Fetching chalk, cwlpreconditiontesting
[240/1817] Fetching chalk, cwlpreconditiontesting, filecheck
[388/6687] Fetching chalk, cwlpreconditiontesting, filecheck, swiftcheck
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (0.77s)
Fetched https://github.com/llvm-swift/FileCheck.git from cache (0.77s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[546/4951] Fetching chalk, swiftcheck
[1034/19706] Fetching chalk, swiftcheck, quick
[2454/39273] Fetching chalk, swiftcheck, quick, nimble
Fetched https://github.com/typelift/SwiftCheck from cache (1.12s)
[7211/34403] Fetching chalk, quick, nimble
Fetched https://github.com/Quick/Quick from cache (1.35s)
[1843/20103] Fetching chalk, nimble, cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.72s)
[3407/19648] Fetching chalk, nimble
Fetched https://github.com/mxcl/Chalk.git from cache (1.84s)
Fetched https://github.com/Quick/Nimble from cache (1.84s)
Computing version for https://github.com/typelift/SwiftCheck
Fetched https://github.com/apple/swift-argument-parser from cache (1.84s)
Computed https://github.com/typelift/SwiftCheck at 0.12.0 (2.50s)
Computing version for https://github.com/Quick/Quick
Computed https://github.com/Quick/Quick at 5.0.1 (0.65s)
Computing version for https://github.com/Quick/Nimble
Computed https://github.com/Quick/Nimble at 9.2.1 (0.62s)
Computing version for https://github.com/llvm-swift/FileCheck.git
Computed https://github.com/llvm-swift/FileCheck.git at 0.2.5 (0.64s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.0.1 (0.60s)
Computing version for https://github.com/mxcl/Chalk.git
Computed https://github.com/mxcl/Chalk.git at 0.4.0 (0.62s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 0.3.1 (0.62s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.0.0 (0.59s)
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 9.2.1
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.0.0
Creating working copy for https://github.com/mxcl/Chalk.git
Working copy of https://github.com/mxcl/Chalk.git resolved at 0.4.0
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 0.3.1
Creating working copy for https://github.com/typelift/SwiftCheck
Working copy of https://github.com/typelift/SwiftCheck resolved at 0.12.0
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.0.1
Creating working copy for https://github.com/llvm-swift/FileCheck.git
Working copy of https://github.com/llvm-swift/FileCheck.git resolved at 0.2.5
Creating working copy for https://github.com/Quick/Quick
Working copy of https://github.com/Quick/Quick resolved at 5.0.1
========================================
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": "quick-swift-check",
      "name": "QuickSwiftCheck",
      "url": "https://github.com/akashivskyy/quick-swift-check.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/quick-swift-check",
      "dependencies": [
        {
          "identity": "nimble",
          "name": "Nimble",
          "url": "https://github.com/Quick/Nimble",
          "version": "9.2.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
          "dependencies": [
            {
              "identity": "cwlpreconditiontesting",
              "name": "CwlPreconditionTesting",
              "url": "https://github.com/mattgallagher/CwlPreconditionTesting.git",
              "version": "2.2.2",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/CwlPreconditionTesting",
              "dependencies": [
                {
                  "identity": "cwlcatchexception",
                  "name": "CwlCatchException",
                  "url": "https://github.com/mattgallagher/CwlCatchException.git",
                  "version": "2.2.1",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/CwlCatchException",
                  "dependencies": [
                  ]
                }
              ]
            }
          ]
        },
        {
          "identity": "quick",
          "name": "Quick",
          "url": "https://github.com/Quick/Quick",
          "version": "5.0.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Quick",
          "dependencies": [
          ]
        },
        {
          "identity": "swiftcheck",
          "name": "SwiftCheck",
          "url": "https://github.com/typelift/SwiftCheck",
          "version": "0.12.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftCheck",
          "dependencies": [
            {
              "identity": "filecheck",
              "name": "FileCheck",
              "url": "https://github.com/llvm-swift/FileCheck.git",
              "version": "0.2.6",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/FileCheck",
              "dependencies": [
                {
                  "identity": "swift-argument-parser",
                  "name": "swift-argument-parser",
                  "url": "https://github.com/apple/swift-argument-parser",
                  "version": "1.5.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-argument-parser",
                  "dependencies": [
                  ]
                },
                {
                  "identity": "chalk",
                  "name": "Chalk",
                  "url": "https://github.com/mxcl/Chalk.git",
                  "version": "0.5.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Chalk",
                  "dependencies": [
                  ]
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/akashivskyy/quick-swift-check.git
[1/442] Fetching quick-swift-check
Fetched https://github.com/akashivskyy/quick-swift-check.git from cache (0.68s)
Fetching https://github.com/Quick/Nimble from cache
Fetching https://github.com/Quick/Quick from cache
Fetching https://github.com/typelift/SwiftCheck from cache
Fetched https://github.com/Quick/Nimble from cache (0.55s)
Fetched https://github.com/typelift/SwiftCheck from cache (0.56s)
Fetched https://github.com/Quick/Quick from cache (0.56s)
Computing version for https://github.com/typelift/SwiftCheck
Computed https://github.com/typelift/SwiftCheck at 0.12.0 (0.62s)
Fetching https://github.com/llvm-swift/FileCheck.git from cache
Fetched https://github.com/llvm-swift/FileCheck.git from cache (0.46s)
Computing version for https://github.com/Quick/Quick
Computed https://github.com/Quick/Quick at 5.0.1 (0.51s)
Computing version for https://github.com/Quick/Nimble
Computed https://github.com/Quick/Nimble at 9.2.1 (0.04s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git from cache
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (0.48s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (1.05s)
Fetching https://github.com/mattgallagher/CwlCatchException.git from cache
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.42s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (0.99s)
Computing version for https://github.com/llvm-swift/FileCheck.git
Computed https://github.com/llvm-swift/FileCheck.git at 0.2.6 (0.58s)
Fetching https://github.com/apple/swift-argument-parser from cache
Fetching https://github.com/mxcl/Chalk.git from cache
Fetched https://github.com/mxcl/Chalk.git from cache (0.56s)
Fetched https://github.com/apple/swift-argument-parser from cache (0.57s)
Computing version for https://github.com/mxcl/Chalk.git
Computed https://github.com/mxcl/Chalk.git at 0.5.0 (0.62s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.47s)
Creating working copy for https://github.com/Quick/Quick
Working copy of https://github.com/Quick/Quick resolved at 5.0.1
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
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.5.0
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 9.2.1
Creating working copy for https://github.com/akashivskyy/quick-swift-check.git
Working copy of https://github.com/akashivskyy/quick-swift-check.git resolved at master (a842036)
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/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
Creating working copy for https://github.com/typelift/SwiftCheck
Working copy of https://github.com/typelift/SwiftCheck resolved at 0.12.0
warning: '.resolve-product-dependencies': dependency 'quick-swift-check' is not used by any target
Found 3 product dependencies
  - Nimble
  - Quick
  - SwiftCheck
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/akashivskyy/quick-swift-check.git
https://github.com/akashivskyy/quick-swift-check.git
{
  "dependencies" : [
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
    },
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick"
    },
    {
      "identity" : "swiftcheck",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/typelift/SwiftCheck"
    }
  ],
  "manifest_display_name" : "QuickSwiftCheck",
  "name" : "QuickSwiftCheck",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    }
  ],
  "products" : [
    {
      "name" : "QuickSwiftCheck",
      "targets" : [
        "QuickSwiftCheck"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "QuickSwiftCheck",
      "module_type" : "SwiftTarget",
      "name" : "QuickSwiftCheck",
      "path" : "Sources",
      "product_dependencies" : [
        "Nimble",
        "Quick",
        "SwiftCheck"
      ],
      "product_memberships" : [
        "QuickSwiftCheck"
      ],
      "sources" : [
        "It.swift",
        "To.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.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...
[0/11] Write sources
[6/11] Write swift-version-2F0A5646E1D333AE.txt
[7/26] Compiling CwlMachBadInstructionHandler mach_excServer.c
[8/26] Compiling CwlMachBadInstructionHandler CwlMachBadInstructionHandler.m
[9/26] Compiling CwlCatchExceptionSupport CwlCatchException.m
[10/28] Compiling QuickObjCRuntime QuickSpecBase.m
[12/51] Compiling CwlCatchException CwlCatchException.swift
[13/51] Emitting module CwlCatchException
[14/55] Emitting module CwlPreconditionTesting
[15/55] Compiling CwlPreconditionTesting CwlBadInstructionException.swift
[16/55] Compiling CwlPreconditionTesting CwlDarwinDefinitions.swift
[17/55] Compiling CwlPreconditionTesting CwlCatchBadInstruction.swift
[18/105] Compiling Nimble BeGreaterThanOrEqualTo.swift
[19/105] Compiling Nimble BeIdenticalTo.swift
[20/107] Emitting module Quick
[21/107] Compiling Nimble AdapterProtocols.swift
[22/107] Compiling Nimble AssertionDispatcher.swift
[23/107] Compiling Nimble AssertionRecorder.swift
[24/107] Compiling Nimble NMBExpectation.swift
[25/107] Compiling Nimble NMBObjCMatcher.swift
[26/107] Compiling Nimble NimbleEnvironment.swift
[27/107] Compiling Nimble Expression.swift
[28/107] Compiling Nimble FailureMessage.swift
[29/107] Compiling Nimble AllPass.swift
[30/107] Compiling Nimble Async.swift
[31/107] Compiling Nimble BeAKindOf.swift
[32/107] Compiling Nimble BeAnInstanceOf.swift
[33/112] Emitting module Nimble
[34/112] Compiling Nimble SatisfyAllOf.swift
[35/112] Compiling Nimble SatisfyAnyOf.swift
[36/112] Compiling Nimble ThrowAssertion.swift
[37/112] Compiling Nimble ThrowError.swift
[38/112] Compiling Nimble ToSucceed.swift
[39/112] Compiling Nimble BeCloseTo.swift
[40/112] Compiling Nimble BeEmpty.swift
[41/112] Compiling Nimble BeGreaterThan.swift
[44/112] Compiling Quick URL+FileName.swift
[45/112] Compiling Quick World.swift
[46/112] Compiling Nimble Contain.swift
[47/112] Compiling Nimble ContainElementSatisfying.swift
[48/112] Compiling Nimble ElementsEqual.swift
[49/112] Compiling Nimble EndWith.swift
[50/112] Compiling Nimble MatcherFunc.swift
[51/112] Compiling Nimble MatcherProtocols.swift
[52/112] Compiling Nimble PostNotification.swift
[53/112] Compiling Nimble Predicate.swift
[54/112] Compiling Nimble RaisesException.swift
[78/113] Compiling Nimble BeLessThanOrEqual.swift
[79/113] Compiling Nimble BeLogical.swift
[80/113] Compiling Nimble BeNil.swift
[81/113] Compiling Nimble BeVoid.swift
[82/113] Compiling Nimble BeginWith.swift
[83/113] Compiling Nimble Equal+Tuple.swift
[84/113] Compiling Nimble Equal.swift
[85/113] Compiling Nimble HaveCount.swift
[86/113] Compiling Nimble Match.swift
[87/113] Compiling Nimble MatchError.swift
[88/113] Compiling Nimble NimbleXCTestHandler.swift
[89/113] Compiling Nimble ExceptionCapture.swift
[90/113] Compiling Nimble DSL+Wait.swift
[91/113] Compiling Nimble DSL.swift
[92/113] Compiling Nimble Expectation.swift
[93/113] Compiling Nimble ExpectationMessage.swift
[94/113] Compiling SwiftCheck Test.swift
[97/113] Compiling SwiftCheck Rose.swift
[98/113] Compiling SwiftCheck State.swift
[99/113] Compiling SwiftCheck Testable.swift
[105/113] Compiling Nimble Await.swift
[106/113] Compiling Nimble DispatchTimeInterval.swift
[107/113] Compiling Nimble Errors.swift
[108/113] Compiling Nimble SourceLocation.swift
[109/113] Compiling Nimble Stringers.swift
[112/113] Emitting module SwiftCheck
[113/113] Compiling SwiftCheck WitnessedArbitrary.swift
[114/116] Emitting module QuickSwiftCheck
[115/116] Compiling QuickSwiftCheck To.swift
[116/116] Compiling QuickSwiftCheck It.swift
Build complete! (14.30s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
    },
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick"
    },
    {
      "identity" : "swiftcheck",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/typelift/SwiftCheck"
    }
  ],
  "manifest_display_name" : "QuickSwiftCheck",
  "name" : "QuickSwiftCheck",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    }
  ],
  "products" : [
    {
      "name" : "QuickSwiftCheck",
      "targets" : [
        "QuickSwiftCheck"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "QuickSwiftCheck",
      "module_type" : "SwiftTarget",
      "name" : "QuickSwiftCheck",
      "path" : "Sources",
      "product_dependencies" : [
        "Nimble",
        "Quick",
        "SwiftCheck"
      ],
      "product_memberships" : [
        "QuickSwiftCheck"
      ],
      "sources" : [
        "It.swift",
        "To.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.