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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 Stencil, reference main (0126cb), with Swift 6.1 for Linux on 30 Apr 2025 10:10:25 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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/MFB-Technologies-Inc/Stencil.git
Reference: main
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/MFB-Technologies-Inc/Stencil
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 0126cb1 Merge pull request #2 from MFB-Technologies-Inc/feature/concurrency
Cloned https://github.com/MFB-Technologies-Inc/Stencil.git
Revision (git rev-parse @):
0126cb11c1379b4a2ed3698a62ed56a955605896
SUCCESS checkout https://github.com/MFB-Technologies-Inc/Stencil.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/MFB-Technologies-Inc/Stencil.git
https://github.com/MFB-Technologies-Inc/Stencil.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "pathkit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/MFB-Technologies-Inc/PathKit.git"
    }
  ],
  "manifest_display_name" : "Stencil",
  "name" : "Stencil",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "15.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Stencil",
      "targets" : [
        "Stencil"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "StencilTests",
      "module_type" : "SwiftTarget",
      "name" : "StencilTests",
      "path" : "Tests/StencilTests",
      "sources" : [
        "ContextTests.swift",
        "EnvironmentBaseAndChildTemplateTests.swift",
        "EnvironmentIncludeTemplateTests.swift",
        "EnvironmentTests.swift",
        "ExpressionTests.swift",
        "FilterTagTests.swift",
        "FilterTests.swift",
        "ForNodeTests.swift",
        "Helpers/ErrorNode.swift",
        "Helpers/ExampleLoader.swift",
        "Helpers/StencilTestCase.swift",
        "IfNodeTests.swift",
        "IncludeTests.swift",
        "InheritanceTests.swift",
        "LexerTests.swift",
        "LoaderTests.swift",
        "NodeTests.swift",
        "NowNodeTests.swift",
        "ParserTests.swift",
        "StencilTests.swift",
        "TemplateTests.swift",
        "TokenTests.swift",
        "TrimBehaviourTests.swift",
        "VariableTests.swift",
        "fixtures/Fixtures+Base.swift",
        "fixtures/Fixtures+BaseRepeat.swift",
        "fixtures/Fixtures+Child.swift",
        "fixtures/Fixtures+ChildChild.swift",
        "fixtures/Fixtures+ChildRepeat.swift",
        "fixtures/Fixtures+ChildSuper.swift",
        "fixtures/Fixtures+Huge.swift",
        "fixtures/Fixtures+IfBlock.swift",
        "fixtures/Fixtures+IfBlockChild.swift",
        "fixtures/Fixtures+InvalidBase.swift",
        "fixtures/Fixtures+InvalidChildSuper.swift",
        "fixtures/Fixtures+InvalidInclude.swift",
        "fixtures/Fixtures+Test.swift",
        "fixtures/Fixtures.swift"
      ],
      "target_dependencies" : [
        "Stencil"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Stencil",
      "module_type" : "SwiftTarget",
      "name" : "Stencil",
      "path" : "Sources/Stencil",
      "product_dependencies" : [
        "PathKit"
      ],
      "product_memberships" : [
        "Stencil"
      ],
      "sources" : [
        "Context.swift",
        "DynamicMemberLookup.swift",
        "Environment.swift",
        "Errors.swift",
        "Expression.swift",
        "Extension.swift",
        "FilterTag.swift",
        "Filters.swift",
        "ForTag.swift",
        "IfTag.swift",
        "Include.swift",
        "Inheritance.swift",
        "KeyPath.swift",
        "LazyValueWrapper.swift",
        "Lexer.swift",
        "Loader.swift",
        "Node.swift",
        "NowTag.swift",
        "Parser.swift",
        "Template.swift",
        "Tokenizer.swift",
        "TrimBehaviour.swift",
        "Variable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.10"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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/MFB-Technologies-Inc/PathKit.git
[1/890] Fetching pathkit
Fetched https://github.com/MFB-Technologies-Inc/PathKit.git from cache (0.27s)
Computing version for https://github.com/MFB-Technologies-Inc/PathKit.git
Computed https://github.com/MFB-Technologies-Inc/PathKit.git at 1.0.2 (0.92s)
Fetching https://github.com/apple/swift-system.git
[1/4367] Fetching swift-system
Fetched https://github.com/apple/swift-system.git from cache (0.45s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.4.2 (1.33s)
Creating working copy for https://github.com/MFB-Technologies-Inc/PathKit.git
Working copy of https://github.com/MFB-Technologies-Inc/PathKit.git resolved at 1.0.2
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.4.2
Building for debugging...
[0/5] Write sources
[3/5] Compiling CSystem shims.c
[4/5] Write swift-version-24593BA9C3E375BF.txt
[6/33] Emitting module SystemPackage
[7/36] Compiling SystemPackage Util+StringArray.swift
[8/36] Compiling SystemPackage Util.swift
[9/36] Compiling SystemPackage UtilConsumers.swift
[10/36] Compiling SystemPackage FilePathTempPosix.swift
[11/36] Compiling SystemPackage FilePathTempWindows.swift
[12/36] Compiling SystemPackage FilePathWindows.swift
[13/36] Compiling SystemPackage FilePermissions.swift
[14/36] Compiling SystemPackage FilePathParsing.swift
[15/36] Compiling SystemPackage FilePathString.swift
[16/36] Compiling SystemPackage FilePathSyntax.swift
[17/36] Compiling SystemPackage FilePathTemp.swift
[18/36] Compiling SystemPackage MachPort.swift
[19/36] Compiling SystemPackage PlatformString.swift
[20/36] Compiling SystemPackage SystemString.swift
[21/36] Compiling SystemPackage Errno.swift
[22/36] Compiling SystemPackage ErrnoWindows.swift
[23/36] Compiling SystemPackage FileDescriptor.swift
[24/36] Compiling SystemPackage FileHelpers.swift
[25/36] Compiling SystemPackage Backcompat.swift
[26/36] Compiling SystemPackage CInterop.swift
[27/36] Compiling SystemPackage Constants.swift
[28/36] Compiling SystemPackage Exports.swift
[29/36] Compiling SystemPackage FileOperations.swift
[30/36] Compiling SystemPackage FilePath.swift
[31/36] Compiling SystemPackage FilePathComponentView.swift
[32/36] Compiling SystemPackage FilePathComponents.swift
[33/36] Compiling SystemPackage Mocking.swift
[34/36] Compiling SystemPackage RawBuffer.swift
[35/36] Compiling SystemPackage Syscalls.swift
[36/36] Compiling SystemPackage WindowsSyscallAdapters.swift
[38/50] Compiling PathKit Path+Globbing.swift
[39/50] Compiling PathKit Path+PathInfo.swift
[40/50] Compiling PathKit Path+Traversing.swift
[41/50] Compiling PathKit Path+Sequence.swift
[42/51] Compiling PathKit Path+Contents.swift
[43/51] Compiling PathKit Path+Directories.swift
[44/51] Compiling PathKit Operators.swift
[45/51] Compiling PathKit Path+Components.swift
[46/51] Compiling PathKit DefaultFileSystemInfo.swift
[47/51] Compiling PathKit FileSystemInfo.swift
[48/51] Emitting module PathKit
[49/51] Compiling PathKit Path+FileInfo.swift
[50/51] Compiling PathKit Path+FileManipulation.swift
[51/51] Compiling PathKit Path.swift
[53/74] Compiling Stencil Context.swift
[54/74] Compiling Stencil DynamicMemberLookup.swift
[55/74] Compiling Stencil Environment.swift
[56/76] Emitting module Stencil
[57/76] Compiling Stencil Errors.swift
[58/76] Compiling Stencil Expression.swift
[59/76] Compiling Stencil Extension.swift
[60/76] Compiling Stencil Parser.swift
[61/76] Compiling Stencil Template.swift
[62/76] Compiling Stencil Tokenizer.swift
[63/76] Compiling Stencil Loader.swift
[64/76] Compiling Stencil Node.swift
[65/76] Compiling Stencil NowTag.swift
[66/76] Compiling Stencil IfTag.swift
[67/76] Compiling Stencil Include.swift
[68/76] Compiling Stencil Inheritance.swift
[69/76] Compiling Stencil KeyPath.swift
[70/76] Compiling Stencil LazyValueWrapper.swift
[71/76] Compiling Stencil Lexer.swift
[72/76] Compiling Stencil FilterTag.swift
[73/76] Compiling Stencil Filters.swift
[74/76] Compiling Stencil ForTag.swift
[75/76] Compiling Stencil TrimBehaviour.swift
[76/76] Compiling Stencil Variable.swift
Build complete! (14.23s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "pathkit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/MFB-Technologies-Inc/PathKit.git"
    }
  ],
  "manifest_display_name" : "Stencil",
  "name" : "Stencil",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "15.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Stencil",
      "targets" : [
        "Stencil"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "StencilTests",
      "module_type" : "SwiftTarget",
      "name" : "StencilTests",
      "path" : "Tests/StencilTests",
      "sources" : [
        "ContextTests.swift",
        "EnvironmentBaseAndChildTemplateTests.swift",
        "EnvironmentIncludeTemplateTests.swift",
        "EnvironmentTests.swift",
        "ExpressionTests.swift",
        "FilterTagTests.swift",
        "FilterTests.swift",
        "ForNodeTests.swift",
        "Helpers/ErrorNode.swift",
        "Helpers/ExampleLoader.swift",
        "Helpers/StencilTestCase.swift",
        "IfNodeTests.swift",
        "IncludeTests.swift",
        "InheritanceTests.swift",
        "LexerTests.swift",
        "LoaderTests.swift",
        "NodeTests.swift",
        "NowNodeTests.swift",
        "ParserTests.swift",
        "StencilTests.swift",
        "TemplateTests.swift",
        "TokenTests.swift",
        "TrimBehaviourTests.swift",
        "VariableTests.swift",
        "fixtures/Fixtures+Base.swift",
        "fixtures/Fixtures+BaseRepeat.swift",
        "fixtures/Fixtures+Child.swift",
        "fixtures/Fixtures+ChildChild.swift",
        "fixtures/Fixtures+ChildRepeat.swift",
        "fixtures/Fixtures+ChildSuper.swift",
        "fixtures/Fixtures+Huge.swift",
        "fixtures/Fixtures+IfBlock.swift",
        "fixtures/Fixtures+IfBlockChild.swift",
        "fixtures/Fixtures+InvalidBase.swift",
        "fixtures/Fixtures+InvalidChildSuper.swift",
        "fixtures/Fixtures+InvalidInclude.swift",
        "fixtures/Fixtures+Test.swift",
        "fixtures/Fixtures.swift"
      ],
      "target_dependencies" : [
        "Stencil"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Stencil",
      "module_type" : "SwiftTarget",
      "name" : "Stencil",
      "path" : "Sources/Stencil",
      "product_dependencies" : [
        "PathKit"
      ],
      "product_memberships" : [
        "Stencil"
      ],
      "sources" : [
        "Context.swift",
        "DynamicMemberLookup.swift",
        "Environment.swift",
        "Errors.swift",
        "Expression.swift",
        "Extension.swift",
        "FilterTag.swift",
        "Filters.swift",
        "ForTag.swift",
        "IfTag.swift",
        "Include.swift",
        "Inheritance.swift",
        "KeyPath.swift",
        "LazyValueWrapper.swift",
        "Lexer.swift",
        "Loader.swift",
        "Node.swift",
        "NowTag.swift",
        "Parser.swift",
        "Template.swift",
        "Tokenizer.swift",
        "TrimBehaviour.swift",
        "Variable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.10"
}
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.