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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 Splash, reference 0.16.0 (7f4df4), with Swift 6.1 for Linux on 26 Apr 2025 12:40:10 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/JohnSundell/Splash.git
Reference: 0.16.0
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/JohnSundell/Splash
 * tag               0.16.0     -> FETCH_HEAD
HEAD is now at 7f4df43 Add support for Swift 5.5's concurrency features (#126)
Cloned https://github.com/JohnSundell/Splash.git
Revision (git rev-parse @):
7f4df436eb78fe64fe2c32c58006e9949fa28ad8
SUCCESS checkout https://github.com/JohnSundell/Splash.git at 0.16.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/JohnSundell/Splash.git
https://github.com/JohnSundell/Splash.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Splash",
  "name" : "Splash",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Splash",
      "targets" : [
        "Splash"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SplashMarkdown",
      "targets" : [
        "SplashMarkdown"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "SplashHTMLGen",
      "targets" : [
        "SplashHTMLGen"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "SplashImageGen",
      "targets" : [
        "SplashImageGen"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "SplashTokenizer",
      "targets" : [
        "SplashTokenizer"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SplashTokenizer",
      "module_type" : "SwiftTarget",
      "name" : "SplashTokenizer",
      "path" : "Sources/SplashTokenizer",
      "product_memberships" : [
        "SplashTokenizer"
      ],
      "sources" : [
        "TokenizerOutputFormat.swift",
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SplashTests",
      "module_type" : "SwiftTarget",
      "name" : "SplashTests",
      "path" : "Tests/SplashTests",
      "sources" : [
        "Core/SyntaxHighlighterTestCase.swift",
        "Mocks/OutputBuilderMock.swift",
        "Mocks/OutputFormatMock.swift",
        "Tests/ClosureTests.swift",
        "Tests/CommentTests.swift",
        "Tests/DeclarationTests.swift",
        "Tests/EnumTests.swift",
        "Tests/FunctionCallTests.swift",
        "Tests/HTMLOutputFormatTests.swift",
        "Tests/LiteralTests.swift",
        "Tests/MarkdownTests.swift",
        "Tests/OptionalTests.swift",
        "Tests/PreprocessorTests.swift",
        "Tests/StatementTests.swift",
        "Tests/TokenTypeTests.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SplashMarkdown",
      "module_type" : "SwiftTarget",
      "name" : "SplashMarkdown",
      "path" : "Sources/SplashMarkdown",
      "product_memberships" : [
        "SplashMarkdown"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SplashImageGen",
      "module_type" : "SwiftTarget",
      "name" : "SplashImageGen",
      "path" : "Sources/SplashImageGen",
      "product_memberships" : [
        "SplashImageGen"
      ],
      "sources" : [
        "Extensions/CGImage+WriteToURL.swift",
        "Extensions/CommandLine+Options.swift",
        "Extensions/NSGraphicsContext+Fill.swift",
        "Extensions/NSGraphicsContext+InitWithSize.swift",
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SplashHTMLGen",
      "module_type" : "SwiftTarget",
      "name" : "SplashHTMLGen",
      "path" : "Sources/SplashHTMLGen",
      "product_memberships" : [
        "SplashHTMLGen"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "Splash",
      "module_type" : "SwiftTarget",
      "name" : "Splash",
      "path" : "Sources/Splash",
      "product_memberships" : [
        "Splash",
        "SplashMarkdown",
        "SplashHTMLGen",
        "SplashImageGen",
        "SplashTokenizer"
      ],
      "sources" : [
        "Extensions/CharacterSet/CharacterSet+Contains.swift",
        "Extensions/Equatable/Equatable+AnyOf.swift",
        "Extensions/Int/Int+IsOdd.swift",
        "Extensions/Sequence/Sequence+AnyOf.swift",
        "Extensions/Sequence/Sequence+Occurrences.swift",
        "Extensions/Strings/String+HTMLEntities.swift",
        "Extensions/Strings/String+IsNumber.swift",
        "Extensions/Strings/String+PrefixChecking.swift",
        "Extensions/Strings/String+Removing.swift",
        "Extensions/Strings/Substring+HasSuffix.swift",
        "Grammar/Grammar.swift",
        "Grammar/SwiftGrammar.swift",
        "Output/AttributedStringOutputFormat.swift",
        "Output/HTMLOutputFormat.swift",
        "Output/MarkdownDecorator.swift",
        "Output/OutputBuilder.swift",
        "Output/OutputFormat.swift",
        "Syntax/SyntaxHighlighter.swift",
        "Syntax/SyntaxRule.swift",
        "Theming/Color.swift",
        "Theming/Font.swift",
        "Theming/Theme+Defaults.swift",
        "Theming/Theme.swift",
        "Tokenizing/Segment.swift",
        "Tokenizing/TokenType.swift",
        "Tokenizing/Tokenizer.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.4"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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
Building for debugging...
[0/19] Write sources
[5/19] Write swift-version-24593BA9C3E375BF.txt
[7/43] Emitting module Splash
[8/46] Compiling Splash SwiftGrammar.swift
[9/46] Compiling Splash AttributedStringOutputFormat.swift
[10/46] Compiling Splash HTMLOutputFormat.swift
[11/46] Compiling Splash Sequence+Occurrences.swift
[12/46] Compiling Splash String+HTMLEntities.swift
[13/46] Compiling Splash String+IsNumber.swift
[14/46] Compiling Splash String+PrefixChecking.swift
[15/46] Compiling Splash String+Removing.swift
[16/46] Compiling Splash Substring+HasSuffix.swift
[17/46] Compiling Splash Grammar.swift
[18/46] Compiling Splash MarkdownDecorator.swift
[19/46] Compiling Splash OutputBuilder.swift
[20/46] Compiling Splash OutputFormat.swift
[21/46] Compiling Splash CharacterSet+Contains.swift
[22/46] Compiling Splash Equatable+AnyOf.swift
[23/46] Compiling Splash Int+IsOdd.swift
[24/46] Compiling Splash Sequence+AnyOf.swift
[25/46] Compiling Splash SyntaxHighlighter.swift
[26/46] Compiling Splash SyntaxRule.swift
[27/46] Compiling Splash Color.swift
[28/46] Compiling Splash Font.swift
[29/46] Compiling Splash Theme+Defaults.swift
[30/46] Compiling Splash Theme.swift
[31/46] Compiling Splash Segment.swift
[32/46] Compiling Splash TokenType.swift
[33/46] Compiling Splash Tokenizer.swift
[34/47] Wrapping AST for Splash for debugging
[36/60] Emitting module SplashTokenizer
[37/60] Compiling SplashTokenizer main.swift
[38/60] Emitting module SplashMarkdown
[39/60] Compiling SplashMarkdown main.swift
[40/61] Compiling SplashImageGen CGImage+WriteToURL.swift
[41/61] Emitting module SplashHTMLGen
[42/61] Compiling SplashHTMLGen main.swift
[43/61] Emitting module SplashImageGen
[44/61] Compiling SplashImageGen CommandLine+Options.swift
[45/62] Compiling SplashImageGen NSGraphicsContext+Fill.swift
[46/62] Compiling SplashImageGen NSGraphicsContext+InitWithSize.swift
[47/62] Compiling SplashImageGen main.swift
[49/63] Compiling SplashTokenizer TokenizerOutputFormat.swift
[51/64] Wrapping AST for SplashMarkdown for debugging
[52/64] Write Objects.LinkFileList
[54/64] Wrapping AST for SplashHTMLGen for debugging
[55/64] Write Objects.LinkFileList
[56/64] Wrapping AST for SplashImageGen for debugging
[57/64] Write Objects.LinkFileList
[58/64] Wrapping AST for SplashTokenizer for debugging
[59/64] Write Objects.LinkFileList
[60/64] Linking SplashMarkdown
[61/64] Linking SplashHTMLGen
[62/64] Linking SplashImageGen
[63/64] Linking SplashTokenizer
Build complete! (11.01s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Splash",
  "name" : "Splash",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Splash",
      "targets" : [
        "Splash"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SplashMarkdown",
      "targets" : [
        "SplashMarkdown"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "SplashHTMLGen",
      "targets" : [
        "SplashHTMLGen"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "SplashImageGen",
      "targets" : [
        "SplashImageGen"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "SplashTokenizer",
      "targets" : [
        "SplashTokenizer"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SplashTokenizer",
      "module_type" : "SwiftTarget",
      "name" : "SplashTokenizer",
      "path" : "Sources/SplashTokenizer",
      "product_memberships" : [
        "SplashTokenizer"
      ],
      "sources" : [
        "TokenizerOutputFormat.swift",
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SplashTests",
      "module_type" : "SwiftTarget",
      "name" : "SplashTests",
      "path" : "Tests/SplashTests",
      "sources" : [
        "Core/SyntaxHighlighterTestCase.swift",
        "Mocks/OutputBuilderMock.swift",
        "Mocks/OutputFormatMock.swift",
        "Tests/ClosureTests.swift",
        "Tests/CommentTests.swift",
        "Tests/DeclarationTests.swift",
        "Tests/EnumTests.swift",
        "Tests/FunctionCallTests.swift",
        "Tests/HTMLOutputFormatTests.swift",
        "Tests/LiteralTests.swift",
        "Tests/MarkdownTests.swift",
        "Tests/OptionalTests.swift",
        "Tests/PreprocessorTests.swift",
        "Tests/StatementTests.swift",
        "Tests/TokenTypeTests.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SplashMarkdown",
      "module_type" : "SwiftTarget",
      "name" : "SplashMarkdown",
      "path" : "Sources/SplashMarkdown",
      "product_memberships" : [
        "SplashMarkdown"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SplashImageGen",
      "module_type" : "SwiftTarget",
      "name" : "SplashImageGen",
      "path" : "Sources/SplashImageGen",
      "product_memberships" : [
        "SplashImageGen"
      ],
      "sources" : [
        "Extensions/CGImage+WriteToURL.swift",
        "Extensions/CommandLine+Options.swift",
        "Extensions/NSGraphicsContext+Fill.swift",
        "Extensions/NSGraphicsContext+InitWithSize.swift",
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SplashHTMLGen",
      "module_type" : "SwiftTarget",
      "name" : "SplashHTMLGen",
      "path" : "Sources/SplashHTMLGen",
      "product_memberships" : [
        "SplashHTMLGen"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "Splash",
      "module_type" : "SwiftTarget",
      "name" : "Splash",
      "path" : "Sources/Splash",
      "product_memberships" : [
        "Splash",
        "SplashMarkdown",
        "SplashHTMLGen",
        "SplashImageGen",
        "SplashTokenizer"
      ],
      "sources" : [
        "Extensions/CharacterSet/CharacterSet+Contains.swift",
        "Extensions/Equatable/Equatable+AnyOf.swift",
        "Extensions/Int/Int+IsOdd.swift",
        "Extensions/Sequence/Sequence+AnyOf.swift",
        "Extensions/Sequence/Sequence+Occurrences.swift",
        "Extensions/Strings/String+HTMLEntities.swift",
        "Extensions/Strings/String+IsNumber.swift",
        "Extensions/Strings/String+PrefixChecking.swift",
        "Extensions/Strings/String+Removing.swift",
        "Extensions/Strings/Substring+HasSuffix.swift",
        "Grammar/Grammar.swift",
        "Grammar/SwiftGrammar.swift",
        "Output/AttributedStringOutputFormat.swift",
        "Output/HTMLOutputFormat.swift",
        "Output/MarkdownDecorator.swift",
        "Output/OutputBuilder.swift",
        "Output/OutputFormat.swift",
        "Syntax/SyntaxHighlighter.swift",
        "Syntax/SyntaxRule.swift",
        "Theming/Color.swift",
        "Theming/Font.swift",
        "Theming/Theme+Defaults.swift",
        "Theming/Theme.swift",
        "Tokenizing/Segment.swift",
        "Tokenizing/TokenType.swift",
        "Tokenizing/Tokenizer.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.4"
}
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.