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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 TextBuilder, reference main (65b7c7), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 21:50:17 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/davdroman/TextBuilder.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/davdroman/TextBuilder
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 65b7c7b Update dependencies (#25)
Cloned https://github.com/davdroman/TextBuilder.git
Revision (git rev-parse @):
65b7c7bb9b163f4fc2d755c52a89a6f3040300df
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/davdroman/TextBuilder.git at main
Fetching https://github.com/davdroman/swift-builders
Fetching https://github.com/google/swift-benchmark
Fetching https://github.com/pointfreeco/swift-custom-dump from cache
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
Fetching https://github.com/apple/swift-argument-parser from cache
[1/523] Fetching swift-builders
[524/2009] Fetching swift-builders, swift-benchmark
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (5.45s)
Fetched https://github.com/google/swift-benchmark from cache (5.45s)
Fetched https://github.com/davdroman/swift-builders from cache (5.45s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (5.45s)
Fetched https://github.com/apple/swift-argument-parser from cache (5.45s)
Computed https://github.com/pointfreeco/swift-custom-dump at 1.0.0 (6.06s)
Computing version for https://github.com/davdroman/swift-builders
Computed https://github.com/davdroman/swift-builders at 0.5.1 (0.59s)
Computing version for https://github.com/google/swift-benchmark
Computed https://github.com/google/swift-benchmark at 0.1.2 (0.58s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.0.2 (0.60s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.2.2 (0.61s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.2.2
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.0.2
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.0.0
Creating working copy for https://github.com/google/swift-benchmark
Working copy of https://github.com/google/swift-benchmark resolved at 0.1.2
Creating working copy for https://github.com/davdroman/swift-builders
Working copy of https://github.com/davdroman/swift-builders resolved at 0.5.1
========================================
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": "textbuilder",
      "name": "TextBuilder",
      "url": "https://github.com/davdroman/TextBuilder.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/TextBuilder",
      "dependencies": [
        {
          "identity": "swift-builders",
          "name": "swift-builders",
          "url": "https://github.com/davdroman/swift-builders",
          "version": "0.7.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-builders",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/davdroman/TextBuilder.git
[1/540] Fetching textbuilder
Fetched https://github.com/davdroman/TextBuilder.git from cache (0.81s)
Fetching https://github.com/davdroman/swift-builders from cache
Fetched https://github.com/davdroman/swift-builders from cache (0.39s)
Computing version for https://github.com/davdroman/swift-builders
Computed https://github.com/davdroman/swift-builders at 0.7.0 (0.90s)
Creating working copy for https://github.com/davdroman/TextBuilder.git
Working copy of https://github.com/davdroman/TextBuilder.git resolved at main (65b7c7b)
Creating working copy for https://github.com/davdroman/swift-builders
Working copy of https://github.com/davdroman/swift-builders resolved at 0.7.0
warning: '.resolve-product-dependencies': dependency 'textbuilder' is not used by any target
Found 1 product dependencies
  - swift-builders
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/davdroman/TextBuilder.git
https://github.com/davdroman/TextBuilder.git
{
  "dependencies" : [
    {
      "identity" : "swift-benchmark",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.2",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/google/swift-benchmark"
    },
    {
      "identity" : "swift-builders",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.5.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/davdroman/swift-builders"
    },
    {
      "identity" : "swift-custom-dump",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-custom-dump"
    }
  ],
  "manifest_display_name" : "TextBuilder",
  "name" : "TextBuilder",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "TextBuilder",
      "targets" : [
        "TextBuilder"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Benchmarks",
      "targets" : [
        "Benchmarks"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TextBuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "TextBuilderTests",
      "path" : "Tests/TextBuilderTests",
      "product_dependencies" : [
        "BuildersTestSupport",
        "CustomDump"
      ],
      "sources" : [
        "TextBuilderTests.swift",
        "TextExtensionsTests.swift"
      ],
      "target_dependencies" : [
        "TextBuilder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TextBuilder",
      "module_type" : "SwiftTarget",
      "name" : "TextBuilder",
      "path" : "Sources/TextBuilder",
      "product_dependencies" : [
        "Builders"
      ],
      "product_memberships" : [
        "TextBuilder",
        "Benchmarks"
      ],
      "sources" : [
        "TextBuilder.swift",
        "TextBuilderSeparator.swift",
        "TextExtensions.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Benchmarks",
      "module_type" : "SwiftTarget",
      "name" : "Benchmarks",
      "path" : "Sources/Benchmarks",
      "product_dependencies" : [
        "Benchmark",
        "BuildersTestSupport"
      ],
      "product_memberships" : [
        "Benchmarks"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "TextBuilder"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.7"
}
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
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/13] Write sources
[6/13] Write Benchmarks-entitlement.plist
[8/13] Write sources
[9/13] Write swift-version-2F0A5646E1D333AE.txt
[11/21] Emitting module BuildersTestSupport
[12/21] Compiling BuildersTestSupport BuildersTestSupport.swift
[13/21] Emitting module ArgumentParserToolInfo
[14/21] Compiling ArgumentParserToolInfo ToolInfo.swift
[15/59] Compiling ArgumentParser AsyncParsableCommand.swift
[16/59] Compiling ArgumentParser CommandConfiguration.swift
[17/59] Compiling ArgumentParser EnumerableFlag.swift
[18/59] Compiling ArgumentParser ExpressibleByArgument.swift
[19/63] Compiling ArgumentParser InputOrigin.swift
[20/63] Compiling ArgumentParser Name.swift
[21/63] Compiling ArgumentParser Parsed.swift
[22/63] Compiling ArgumentParser ParsedValues.swift
[23/63] Compiling ArgumentParser BashCompletionsGenerator.swift
[24/63] Compiling ArgumentParser CompletionsGenerator.swift
[25/63] Compiling ArgumentParser FishCompletionsGenerator.swift
[26/63] Compiling ArgumentParser ZshCompletionsGenerator.swift
[27/63] Compiling ArgumentParser Argument.swift
[28/63] Emitting module ArgumentParser
[29/63] Compiling ArgumentParser ArgumentDefinition.swift
[30/63] Compiling ArgumentParser ArgumentSet.swift
[31/63] Compiling ArgumentParser CommandParser.swift
[32/63] Compiling ArgumentParser InputKey.swift
[33/63] Compiling ArgumentParser ParsableArguments.swift
[34/63] Compiling ArgumentParser ParsableArgumentsValidation.swift
[35/63] Compiling ArgumentParser ParsableCommand.swift
[36/63] Compiling ArgumentParser ArgumentDecoder.swift
[37/63] Compiling ArgumentParser Flag.swift
[38/63] Compiling ArgumentParser NameSpecification.swift
[39/63] Compiling ArgumentParser Option.swift
[40/63] Compiling ArgumentParser OptionGroup.swift
[41/63] Compiling ArgumentParser ArgumentHelp.swift
[42/63] Compiling ArgumentParser ArgumentVisibility.swift
[43/63] Compiling ArgumentParser CompletionKind.swift
[44/63] Compiling ArgumentParser Errors.swift
[45/63] Compiling ArgumentParser Platform.swift
[46/63] Compiling ArgumentParser SequenceExtensions.swift
[47/63] Compiling ArgumentParser StringExtensions.swift
[48/63] Compiling ArgumentParser Tree.swift
[49/63] Compiling Builders Typealiases.swift
[50/63] Compiling Builders _AppendableCollectionBuilder.swift
[51/63] Compiling Builders _AppendableCollection.swift
[52/63] Emitting module Builders
[53/63] Compiling ArgumentParser ParserError.swift
[54/63] Compiling ArgumentParser SplitArguments.swift
[55/63] Compiling ArgumentParser DumpHelpGenerator.swift
[56/63] Compiling ArgumentParser HelpCommand.swift
[57/63] Compiling ArgumentParser HelpGenerator.swift
[58/63] Compiling ArgumentParser MessageInfo.swift
[59/63] Compiling ArgumentParser UsageGenerator.swift
[60/63] Compiling ArgumentParser CollectionExtensions.swift
[61/84] Compiling Benchmark BenchmarkTime.swift
[62/84] Compiling Benchmark Stats.swift
[63/84] Compiling Benchmark BenchmarkSuite.swift
[64/84] Compiling Benchmark BenchmarkTermination.swift
[65/85] Compiling Benchmark BenchmarkSetting.swift
[66/85] Compiling Benchmark BenchmarkState.swift
[67/85] Compiling Benchmark BenchmarkFilter.swift
[68/85] Compiling Benchmark BenchmarkFormatter.swift
[69/85] Compiling Benchmark Benchmark.swift
[70/85] Compiling Benchmark BenchmarkArguments.swift
[71/85] Compiling Benchmark BenchmarkColumn.swift
[72/85] Compiling Benchmark BenchmarkCommand.swift
[73/85] Compiling Benchmark BenchmarkResult.swift
[74/85] Compiling Benchmark BenchmarkRunner.swift
[75/85] Emitting module Benchmark
[76/85] Compiling Benchmark BenchmarkMain.swift
[77/85] Compiling Benchmark BenchmarkReporter.swift
[78/85] Compiling Benchmark TestIntegration.swift
[79/85] Emitting module TextBuilder
[80/85] Compiling TextBuilder TextExtensions.swift
[81/85] Compiling TextBuilder TextBuilderSeparator.swift
[82/85] Compiling TextBuilder TextBuilder.swift
[83/87] Emitting module Benchmarks
[84/87] Compiling Benchmarks main.swift
[84/87] Write Objects.LinkFileList
[85/87] Linking Benchmarks
[86/87] Applying Benchmarks
Build complete! (15.57s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-benchmark",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.2",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/google/swift-benchmark"
    },
    {
      "identity" : "swift-builders",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.5.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/davdroman/swift-builders"
    },
    {
      "identity" : "swift-custom-dump",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-custom-dump"
    }
  ],
  "manifest_display_name" : "TextBuilder",
  "name" : "TextBuilder",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "TextBuilder",
      "targets" : [
        "TextBuilder"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Benchmarks",
      "targets" : [
        "Benchmarks"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TextBuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "TextBuilderTests",
      "path" : "Tests/TextBuilderTests",
      "product_dependencies" : [
        "BuildersTestSupport",
        "CustomDump"
      ],
      "sources" : [
        "TextBuilderTests.swift",
        "TextExtensionsTests.swift"
      ],
      "target_dependencies" : [
        "TextBuilder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TextBuilder",
      "module_type" : "SwiftTarget",
      "name" : "TextBuilder",
      "path" : "Sources/TextBuilder",
      "product_dependencies" : [
        "Builders"
      ],
      "product_memberships" : [
        "TextBuilder",
        "Benchmarks"
      ],
      "sources" : [
        "TextBuilder.swift",
        "TextBuilderSeparator.swift",
        "TextExtensions.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Benchmarks",
      "module_type" : "SwiftTarget",
      "name" : "Benchmarks",
      "path" : "Sources/Benchmarks",
      "product_dependencies" : [
        "Benchmark",
        "BuildersTestSupport"
      ],
      "product_memberships" : [
        "Benchmarks"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "TextBuilder"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.7"
}
Done.