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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 master (ed0878), with Swift 6.1 for Linux on 30 Apr 2025 12:00:08 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: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ShaftUI/Splash.git
Reference: master
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/ShaftUI/Splash
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at ed08785 Update
Cloned https://github.com/ShaftUI/Splash.git
Revision (git rev-parse @):
ed08785980b61de9b98306434410ce7fc10572ea
SUCCESS checkout https://github.com/ShaftUI/Splash.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ShaftUI/Splash.git
https://github.com/ShaftUI/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" : "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/LiteralTests.swift",
        "Tests/OptionalTests.swift",
        "Tests/PreprocessorTests.swift",
        "Tests/StatementTests.swift",
        "Tests/TokenTypeTests.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Splash",
      "module_type" : "SwiftTarget",
      "name" : "Splash",
      "path" : "Sources/Splash",
      "product_memberships" : [
        "Splash",
        "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/HTMLOutputFormat.swift",
        "Output/MarkdownDecorator.swift",
        "Output/OutputBuilder.swift",
        "Output/OutputFormat.swift",
        "Syntax/SyntaxHighlighter.swift",
        "Syntax/SyntaxRule.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...
[0/7] Write sources
[2/7] Write swift-version-24593BA9C3E375BF.txt
[4/27] Emitting module Splash
[5/29] Compiling Splash Sequence+AnyOf.swift
[6/29] Compiling Splash Sequence+Occurrences.swift
[7/29] Compiling Splash String+HTMLEntities.swift
[8/29] Compiling Splash TokenType.swift
[9/29] Compiling Splash Tokenizer.swift
[10/29] Compiling Splash CharacterSet+Contains.swift
[11/29] Compiling Splash Equatable+AnyOf.swift
[12/29] Compiling Splash Int+IsOdd.swift
[13/29] Compiling Splash HTMLOutputFormat.swift
[14/29] Compiling Splash MarkdownDecorator.swift
[15/29] Compiling Splash OutputBuilder.swift
[16/29] Compiling Splash Substring+HasSuffix.swift
[17/29] Compiling Splash Grammar.swift
[18/29] Compiling Splash SwiftGrammar.swift
[19/29] Compiling Splash SyntaxRule.swift
[20/29] Compiling Splash Segment.swift
[21/29] Compiling Splash String+IsNumber.swift
[22/29] Compiling Splash String+PrefixChecking.swift
[23/29] Compiling Splash String+Removing.swift
[24/29] Compiling Splash OutputFormat.swift
[25/29] Compiling Splash SyntaxHighlighter.swift
[26/30] Wrapping AST for Splash for debugging
[28/33] Compiling SplashTokenizer main.swift
[29/33] Emitting module SplashTokenizer
[30/33] Compiling SplashTokenizer TokenizerOutputFormat.swift
[31/34] Wrapping AST for SplashTokenizer for debugging
[32/34] Write Objects.LinkFileList
[33/34] Linking SplashTokenizer
Build complete! (8.71s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Splash",
  "name" : "Splash",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Splash",
      "targets" : [
        "Splash"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "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/LiteralTests.swift",
        "Tests/OptionalTests.swift",
        "Tests/PreprocessorTests.swift",
        "Tests/StatementTests.swift",
        "Tests/TokenTypeTests.swift"
      ],
      "target_dependencies" : [
        "Splash"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Splash",
      "module_type" : "SwiftTarget",
      "name" : "Splash",
      "path" : "Sources/Splash",
      "product_memberships" : [
        "Splash",
        "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/HTMLOutputFormat.swift",
        "Output/MarkdownDecorator.swift",
        "Output/OutputBuilder.swift",
        "Output/OutputFormat.swift",
        "Syntax/SyntaxHighlighter.swift",
        "Syntax/SyntaxRule.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.