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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 clutch, reference 0.5.6 (9ddef6), with Swift 6.1 for Linux on 30 Apr 2025 13:05:23 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swift-nest/clutch.git
Reference: 0.5.6
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/swift-nest/clutch
 * tag               0.5.6      -> FETCH_HEAD
HEAD is now at 9ddef6d Package: swift-system 1.2.2 -> 1.4.0
Cloned https://github.com/swift-nest/clutch.git
Revision (git rev-parse @):
9ddef6dea687f1af8f3a69a1ce5ef9f92c4037d7
SUCCESS checkout https://github.com/swift-nest/clutch.git at 0.5.6
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/swift-nest/clutch.git
https://github.com/swift-nest/clutch.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-atomics",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-atomics"
    },
    {
      "identity" : "swift-system",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.4.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-system"
    },
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.5.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "clutch",
  "name" : "clutch",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "clutch",
      "targets" : [
        "clutch"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "clatch",
      "targets" : [
        "clatch"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "ClutchAP",
      "targets" : [
        "ClutchAP"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "clutchTests",
      "module_type" : "SwiftTarget",
      "name" : "clutchTests",
      "path" : "Tests/clutchTests",
      "product_dependencies" : [
        "Atomics"
      ],
      "sources" : [
        "AskDataTests.swift",
        "ClutchMainTest.swift",
        "ClutchTests.swift",
        "DriverTests.swift",
        "Fixtures/KnownSystemCallFixtures.swift",
        "Fixtures/KnownSystemCalls.swift",
        "FoundationScriptSystemCallsTests.swift",
        "KnownSystemCallFixturesTests.swift",
        "Main/ClutchTestMain.swift",
        "NestOpTests.swift",
        "RecordSystemCallsTests.swift",
        "Scenarios/ClutchCommandScenario.swift",
        "Scenarios/ClutchErrCheck.swift",
        "Support/ActorArray.swift",
        "Support/AtomicIndex.swift",
        "Support/SrcLoc.swift",
        "Support/TestHelper.swift",
        "SystemCallsRecorder/Call.swift",
        "SystemCallsRecorder/CallRecordTypes.swift",
        "SystemCallsRecorder/RecordSystemCalls.swift"
      ],
      "target_dependencies" : [
        "clutchLib"
      ],
      "type" : "test"
    },
    {
      "c99name" : "clutchLib",
      "module_type" : "SwiftTarget",
      "name" : "clutchLib",
      "path" : "Sources/clutch",
      "product_dependencies" : [
        "SystemPackage"
      ],
      "product_memberships" : [
        "clutch",
        "ClutchAP"
      ],
      "sources" : [
        "AskDataBuilder.swift",
        "ClutchDriver.swift",
        "ClutchDriverErrors.swift",
        "DriverConfig/AskMode.swift",
        "DriverConfig/DriverConfig.swift",
        "DriverConfig/Identifier.swift",
        "DriverConfig/ModuleName.swift",
        "DriverConfig/ModuleNameHelp.swift",
        "DriverConfig/NestPaths.swift",
        "DriverConfig/NestPathsStatus.swift",
        "DriverConfig/UserAskKind.swift",
        "Files/FileItem.swift",
        "Files/FileItemHelp.swift",
        "PeerOp.swift",
        "UI/Help.swift",
        "UI/PeerNest.swift",
        "system-impl/FoundationScript.swift",
        "system-impl/FoundationScriptSystemCalls.swift",
        "system/Err.swift",
        "system/StdlibHelp.swift",
        "system/SystemCalls.swift",
        "system/SystemCallsHelp.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "clutch",
      "module_type" : "SwiftTarget",
      "name" : "clutch",
      "path" : "Sources/clutch-tool",
      "product_memberships" : [
        "clutch"
      ],
      "sources" : [
        "clutch.swift"
      ],
      "target_dependencies" : [
        "clutchLib"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "clatch",
      "module_type" : "SwiftTarget",
      "name" : "clatch",
      "path" : "Sources/clatch",
      "product_dependencies" : [
        "SystemPackage"
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      "product_memberships" : [
        "clatch"
      ],
      "sources" : [
        "clatch.swift"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ClutchAP",
      "module_type" : "SwiftTarget",
      "name" : "ClutchAP",
      "path" : "Sources/ClutchAP",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "ClutchAP"
      ],
      "sources" : [
        "ClutchMain.swift"
      ],
      "target_dependencies" : [
        "clutchLib"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "6.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/apple/swift-argument-parser
Fetching https://github.com/apple/swift-atomics
Fetching https://github.com/apple/swift-system
[1/1705] Fetching swift-atomics
[547/6072] Fetching swift-atomics, swift-system
Fetched https://github.com/apple/swift-system from cache (0.36s)
Fetched https://github.com/apple/swift-atomics from cache (0.36s)
[1/14950] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (0.75s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (1.22s)
Computing version for https://github.com/apple/swift-atomics
Computed https://github.com/apple/swift-atomics at 1.2.0 (0.44s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.4.2 (0.41s)
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/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.4.2
Creating working copy for https://github.com/apple/swift-atomics
Working copy of https://github.com/apple/swift-atomics resolved at 1.2.0
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/23] Write sources
[8/23] Compiling CSystem shims.c
[8/23] Write swift-version-24593BA9C3E375BF.txt
[11/53] Compiling ArgumentParserToolInfo ToolInfo.swift
[12/53] Emitting module ArgumentParserToolInfo
[14/54] Emitting module SystemPackage
[15/54] Compiling SystemPackage FileOperations.swift
[16/54] Compiling SystemPackage FilePath.swift
[17/54] Compiling SystemPackage FilePathComponentView.swift
[18/54] Compiling SystemPackage FilePathComponents.swift
[19/57] Compiling SystemPackage MachPort.swift
[20/57] Compiling SystemPackage PlatformString.swift
[21/57] Compiling SystemPackage SystemString.swift
[22/57] Compiling SystemPackage Errno.swift
[23/57] Compiling SystemPackage ErrnoWindows.swift
[24/57] Compiling SystemPackage FileDescriptor.swift
[25/57] Compiling SystemPackage FileHelpers.swift
[25/57] Wrapping AST for ArgumentParserToolInfo for debugging
[27/95] Compiling ArgumentParser ExpressibleByArgument.swift
[28/95] Compiling ArgumentParser ParsableArguments.swift
[29/95] Compiling ArgumentParser ParsableArgumentsValidation.swift
[30/95] Compiling ArgumentParser ArgumentSet.swift
[31/95] Compiling ArgumentParser CommandParser.swift
[32/95] Compiling ArgumentParser InputKey.swift
[33/95] Compiling ArgumentParser InputOrigin.swift
[34/95] Compiling ArgumentParser CommandConfiguration.swift
[35/95] Compiling ArgumentParser CommandGroup.swift
[36/95] Compiling ArgumentParser EnumerableFlag.swift
[37/95] Compiling ArgumentParser ArgumentVisibility.swift
[38/95] Compiling ArgumentParser ParsedValues.swift
[39/95] Compiling ArgumentParser ParserError.swift
[40/95] Compiling ArgumentParser SplitArguments.swift
[41/95] Compiling ArgumentParser ArgumentDefinition.swift
[42/95] Compiling ArgumentParser NameSpecification.swift
[43/95] Compiling ArgumentParser Option.swift
[44/95] Compiling ArgumentParser Name.swift
[45/95] Compiling ArgumentParser Parsed.swift
[46/96] Wrapping AST for SystemPackage for debugging
[48/119] Compiling clutchLib AskMode.swift
[49/119] Compiling clutchLib DriverConfig.swift
[50/119] Compiling clutchLib Identifier.swift
[51/121] Compiling clutchLib NestPathsStatus.swift
[52/121] Compiling clutchLib UserAskKind.swift
[53/121] Compiling clutchLib FileItem.swift
[54/121] Compiling clutchLib Err.swift
[55/121] Compiling clutchLib StdlibHelp.swift
[56/121] Compiling clutchLib FileItemHelp.swift
[57/121] Compiling clutchLib PeerOp.swift
[58/121] Compiling clutchLib Help.swift
[59/121] Compiling clutchLib ModuleName.swift
[60/121] Compiling clutchLib ModuleNameHelp.swift
[61/121] Compiling clutchLib NestPaths.swift
[62/121] Compiling clutchLib SystemCalls.swift
[63/121] Compiling clutchLib SystemCallsHelp.swift
[69/126] Emitting module ArgumentParser
[73/126] Compiling clutchLib AskDataBuilder.swift
[74/126] Compiling clutchLib ClutchDriver.swift
[75/126] Compiling clutchLib ClutchDriverErrors.swift
[76/126] Emitting module clatch
[77/126] Compiling clatch clatch.swift
[84/127] Compiling clutchLib PeerNest.swift
[85/127] Compiling clutchLib FoundationScript.swift
[86/127] Compiling clutchLib FoundationScriptSystemCalls.swift
[89/127] Emitting module clutchLib
[102/128] Wrapping AST for clatch for debugging
[103/128] Write Objects.LinkFileList
[108/128] Compiling ArgumentParser ParsableCommand.swift
[109/128] Compiling ArgumentParser ArgumentDecoder.swift
[110/128] Compiling ArgumentParser DumpHelpGenerator.swift
[111/128] Compiling ArgumentParser HelpCommand.swift
[112/128] Compiling ArgumentParser HelpGenerator.swift
[113/128] Compiling ArgumentParser MessageInfo.swift
[114/128] Compiling ArgumentParser UsageGenerator.swift
[114/128] Wrapping AST for clutchLib for debugging
[116/130] Compiling ArgumentParser CollectionExtensions.swift
[117/130] Compiling ArgumentParser Platform.swift
[118/130] Compiling ArgumentParser SequenceExtensions.swift
[119/130] Compiling ArgumentParser StringExtensions.swift
[120/130] Compiling ArgumentParser Tree.swift
[121/131] Compiling clutch clutch.swift
[122/131] Emitting module clutch
[122/132] Linking clatch
[125/132] Wrapping AST for clutch for debugging
[126/132] Write Objects.LinkFileList
[127/132] Wrapping AST for ArgumentParser for debugging
[128/134] Linking clutch
[130/134] Compiling ClutchAP ClutchMain.swift
[131/134] Emitting module ClutchAP
[132/135] Wrapping AST for ClutchAP for debugging
[133/135] Write Objects.LinkFileList
[134/135] Linking ClutchAP
Build complete! (15.44s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-atomics",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-atomics"
    },
    {
      "identity" : "swift-system",
      "requirement" : {
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          {
            "lower_bound" : "1.4.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-system"
    },
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.5.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "clutch",
  "name" : "clutch",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "clutch",
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        "clutch"
      ],
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      }
    },
    {
      "name" : "clatch",
      "targets" : [
        "clatch"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "ClutchAP",
      "targets" : [
        "ClutchAP"
      ],
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        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "clutchTests",
      "module_type" : "SwiftTarget",
      "name" : "clutchTests",
      "path" : "Tests/clutchTests",
      "product_dependencies" : [
        "Atomics"
      ],
      "sources" : [
        "AskDataTests.swift",
        "ClutchMainTest.swift",
        "ClutchTests.swift",
        "DriverTests.swift",
        "Fixtures/KnownSystemCallFixtures.swift",
        "Fixtures/KnownSystemCalls.swift",
        "FoundationScriptSystemCallsTests.swift",
        "KnownSystemCallFixturesTests.swift",
        "Main/ClutchTestMain.swift",
        "NestOpTests.swift",
        "RecordSystemCallsTests.swift",
        "Scenarios/ClutchCommandScenario.swift",
        "Scenarios/ClutchErrCheck.swift",
        "Support/ActorArray.swift",
        "Support/AtomicIndex.swift",
        "Support/SrcLoc.swift",
        "Support/TestHelper.swift",
        "SystemCallsRecorder/Call.swift",
        "SystemCallsRecorder/CallRecordTypes.swift",
        "SystemCallsRecorder/RecordSystemCalls.swift"
      ],
      "target_dependencies" : [
        "clutchLib"
      ],
      "type" : "test"
    },
    {
      "c99name" : "clutchLib",
      "module_type" : "SwiftTarget",
      "name" : "clutchLib",
      "path" : "Sources/clutch",
      "product_dependencies" : [
        "SystemPackage"
      ],
      "product_memberships" : [
        "clutch",
        "ClutchAP"
      ],
      "sources" : [
        "AskDataBuilder.swift",
        "ClutchDriver.swift",
        "ClutchDriverErrors.swift",
        "DriverConfig/AskMode.swift",
        "DriverConfig/DriverConfig.swift",
        "DriverConfig/Identifier.swift",
        "DriverConfig/ModuleName.swift",
        "DriverConfig/ModuleNameHelp.swift",
        "DriverConfig/NestPaths.swift",
        "DriverConfig/NestPathsStatus.swift",
        "DriverConfig/UserAskKind.swift",
        "Files/FileItem.swift",
        "Files/FileItemHelp.swift",
        "PeerOp.swift",
        "UI/Help.swift",
        "UI/PeerNest.swift",
        "system-impl/FoundationScript.swift",
        "system-impl/FoundationScriptSystemCalls.swift",
        "system/Err.swift",
        "system/StdlibHelp.swift",
        "system/SystemCalls.swift",
        "system/SystemCallsHelp.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "clutch",
      "module_type" : "SwiftTarget",
      "name" : "clutch",
      "path" : "Sources/clutch-tool",
      "product_memberships" : [
        "clutch"
      ],
      "sources" : [
        "clutch.swift"
      ],
      "target_dependencies" : [
        "clutchLib"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "clatch",
      "module_type" : "SwiftTarget",
      "name" : "clatch",
      "path" : "Sources/clatch",
      "product_dependencies" : [
        "SystemPackage"
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      "product_memberships" : [
        "clatch"
      ],
      "sources" : [
        "clatch.swift"
      ],
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    },
    {
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      "module_type" : "SwiftTarget",
      "name" : "ClutchAP",
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        "ClutchAP"
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        "ClutchMain.swift"
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        "clutchLib"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "6.0"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.