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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 OutputUhooi, reference main (ea7a63), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 01:22:22 UTC.

Swift 6 data race errors: 1

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/uhooi/swift-output-uhooi.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/uhooi/swift-output-uhooi
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at ea7a639 Merge pull request #19 from uhooi/feature/bump_swift_argument_parser_to_1.1.3
Cloned https://github.com/uhooi/swift-output-uhooi.git
Revision (git rev-parse @):
ea7a63952b75048e2ebd7c52efd5479d84300978
SUCCESS checkout https://github.com/uhooi/swift-output-uhooi.git at main
Fetching https://github.com/apple/swift-argument-parser from cache
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 1.1.3 (1.39s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.1.3
========================================
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": "swift-output-uhooi",
      "name": "OutputUhooi",
      "url": "https://github.com/uhooi/swift-output-uhooi.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-output-uhooi",
      "dependencies": [
        {
          "identity": "swift-argument-parser",
          "name": "swift-argument-parser",
          "url": "https://github.com/apple/swift-argument-parser",
          "version": "1.5.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-argument-parser",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/uhooi/swift-output-uhooi.git
[1/285] Fetching swift-output-uhooi
Fetched https://github.com/uhooi/swift-output-uhooi.git from cache (0.66s)
Fetching https://github.com/apple/swift-argument-parser from cache
Fetched https://github.com/apple/swift-argument-parser from cache (0.55s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (1.05s)
Creating working copy for https://github.com/uhooi/swift-output-uhooi.git
Working copy of https://github.com/uhooi/swift-output-uhooi.git resolved at main (ea7a639)
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
Found 1 product dependencies
  - swift-argument-parser
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/uhooi/swift-output-uhooi.git
https://github.com/uhooi/swift-output-uhooi.git
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "OutputUhooi",
  "name" : "OutputUhooi",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "uhooi",
      "targets" : [
        "OutputUhooi"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OutputUhooiTests",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooiTests",
      "path" : "Tests/OutputUhooiTests",
      "sources" : [
        "OutputUhooiTests.swift"
      ],
      "target_dependencies" : [
        "OutputUhooi"
      ],
      "type" : "test"
    },
    {
      "c99name" : "OutputUhooiCoreTests",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooiCoreTests",
      "path" : "Tests/OutputUhooiCoreTests",
      "sources" : [
        "TextBuilderTests.swift"
      ],
      "target_dependencies" : [
        "OutputUhooiCore"
      ],
      "type" : "test"
    },
    {
      "c99name" : "OutputUhooiCore",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooiCore",
      "path" : "Sources/OutputUhooiCore",
      "product_memberships" : [
        "uhooi"
      ],
      "sources" : [
        "TextBuilder.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "OutputUhooi",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooi",
      "path" : "Sources/OutputUhooi",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "uhooi"
      ],
      "sources" : [
        "Uhooi.swift"
      ],
      "target_dependencies" : [
        "OutputUhooiCore"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.6"
}
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
Building for debugging...
[0/9] Write sources
[1/9] Write uhooi-entitlement.plist
[3/9] Write sources
[5/9] Write swift-version-2F0A5646E1D333AE.txt
[7/13] Emitting module OutputUhooiCore
[8/13] Compiling OutputUhooiCore TextBuilder.swift
[9/13] Emitting module ArgumentParserToolInfo
[10/13] Compiling ArgumentParserToolInfo ToolInfo.swift
[11/50] Emitting module ArgumentParser
[12/53] Compiling ArgumentParser SequenceExtensions.swift
[13/53] Compiling ArgumentParser StringExtensions.swift
[14/53] Compiling ArgumentParser Tree.swift
[15/53] Compiling ArgumentParser OptionGroup.swift
[16/53] Compiling ArgumentParser AsyncParsableCommand.swift
[17/53] Compiling ArgumentParser CommandConfiguration.swift
[18/53] Compiling ArgumentParser EnumerableFlag.swift
[19/53] Compiling ArgumentParser ArgumentDecoder.swift
[20/53] Compiling ArgumentParser ArgumentDefinition.swift
[21/53] Compiling ArgumentParser ArgumentSet.swift
[22/53] Compiling ArgumentParser CommandParser.swift
[23/53] Compiling ArgumentParser BashCompletionsGenerator.swift
[24/53] Compiling ArgumentParser CompletionsGenerator.swift
[25/53] Compiling ArgumentParser FishCompletionsGenerator.swift
[26/53] Compiling ArgumentParser ZshCompletionsGenerator.swift
[27/53] Compiling ArgumentParser Errors.swift
[28/53] Compiling ArgumentParser Flag.swift
[29/53] Compiling ArgumentParser NameSpecification.swift
[30/53] Compiling ArgumentParser Option.swift
[31/53] Compiling ArgumentParser InputOrigin.swift
[32/53] Compiling ArgumentParser Name.swift
[33/53] Compiling ArgumentParser Parsed.swift
[34/53] Compiling ArgumentParser ParsedValues.swift
[35/53] Compiling ArgumentParser ExpressibleByArgument.swift
[36/53] Compiling ArgumentParser ParsableArguments.swift
[37/53] Compiling ArgumentParser ParsableArgumentsValidation.swift
[38/53] Compiling ArgumentParser ParsableCommand.swift
[39/53] Compiling ArgumentParser HelpGenerator.swift
[40/53] Compiling ArgumentParser MessageInfo.swift
[41/53] Compiling ArgumentParser UsageGenerator.swift
[42/53] Compiling ArgumentParser CollectionExtensions.swift
[43/53] Compiling ArgumentParser Argument.swift
[44/53] Compiling ArgumentParser ArgumentHelp.swift
[45/53] Compiling ArgumentParser ArgumentVisibility.swift
[46/53] Compiling ArgumentParser CompletionKind.swift
[47/53] Compiling ArgumentParser ParserError.swift
[48/53] Compiling ArgumentParser SplitArguments.swift
[49/53] Compiling ArgumentParser DumpHelpGenerator.swift
[50/53] Compiling ArgumentParser HelpCommand.swift
[51/55] Compiling OutputUhooi Uhooi.swift
/Users/admin/builder/spi-builder-workspace/Sources/OutputUhooi/Uhooi.swift:7:16: warning: static property 'configuration' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 5 | struct Uhooi: AsyncParsableCommand {
 6 |
 7 |     static var configuration = CommandConfiguration(
   |                |- warning: static property 'configuration' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'configuration' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: add '@MainActor' to make static property 'configuration' part of global actor 'MainActor'
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 8 |         abstract: "Uhooi speak the phrase.",
 9 |         version: "0.2.0"
[52/55] Emitting module OutputUhooi
/Users/admin/builder/spi-builder-workspace/Sources/OutputUhooi/Uhooi.swift:7:16: warning: static property 'configuration' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 5 | struct Uhooi: AsyncParsableCommand {
 6 |
 7 |     static var configuration = CommandConfiguration(
   |                |- warning: static property 'configuration' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'configuration' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: add '@MainActor' to make static property 'configuration' part of global actor 'MainActor'
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 8 |         abstract: "Uhooi speak the phrase.",
 9 |         version: "0.2.0"
[52/55] Write Objects.LinkFileList
[53/55] Linking uhooi
[54/55] Applying uhooi
Build complete! (7.24s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "OutputUhooi",
  "name" : "OutputUhooi",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "uhooi",
      "targets" : [
        "OutputUhooi"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OutputUhooiTests",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooiTests",
      "path" : "Tests/OutputUhooiTests",
      "sources" : [
        "OutputUhooiTests.swift"
      ],
      "target_dependencies" : [
        "OutputUhooi"
      ],
      "type" : "test"
    },
    {
      "c99name" : "OutputUhooiCoreTests",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooiCoreTests",
      "path" : "Tests/OutputUhooiCoreTests",
      "sources" : [
        "TextBuilderTests.swift"
      ],
      "target_dependencies" : [
        "OutputUhooiCore"
      ],
      "type" : "test"
    },
    {
      "c99name" : "OutputUhooiCore",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooiCore",
      "path" : "Sources/OutputUhooiCore",
      "product_memberships" : [
        "uhooi"
      ],
      "sources" : [
        "TextBuilder.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "OutputUhooi",
      "module_type" : "SwiftTarget",
      "name" : "OutputUhooi",
      "path" : "Sources/OutputUhooi",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "uhooi"
      ],
      "sources" : [
        "Uhooi.swift"
      ],
      "target_dependencies" : [
        "OutputUhooiCore"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.6"
}
Done.