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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 SwiftSound, reference v1.0.3 (c99ff7), with Swift 6.1 for macOS (SPM) on 30 Apr 2025 15:04:34 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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mesqueeb/SwiftSound.git
Reference: v1.0.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mesqueeb/SwiftSound
 * tag               v1.0.3     -> FETCH_HEAD
HEAD is now at c99ff7d 1.0.3
Cloned https://github.com/mesqueeb/SwiftSound.git
Revision (git rev-parse @):
c99ff7d39dd0d2e7d7b34df37a54d2ee13ace6ff
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mesqueeb/SwiftSound.git at v1.0.3
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mesqueeb/SwiftSound.git
https://github.com/mesqueeb/SwiftSound.git
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.0",
            "upper_bound" : "2.0.0"
          }
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      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    },
    {
      "identity" : "swiftplot",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/KarthikRIyer/swiftplot.git"
    }
  ],
  "manifest_display_name" : "SwiftSound",
  "name" : "SwiftSound",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSound",
      "targets" : [
        "SwiftSound"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "fft",
      "targets" : [
        "FFT"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSound",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSound",
      "path" : "Sources/SwiftSound",
      "product_dependencies" : [
        "SwiftPlot",
        "SVGRenderer"
      ],
      "product_memberships" : [
        "SwiftSound",
        "fft"
      ],
      "sources" : [
        "fft.swift",
        "readRawAudio.swift",
        "revealInFinder.swift",
        "spectrumToSvg.swift",
        "stft.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "FFT",
      "module_type" : "SwiftTarget",
      "name" : "FFT",
      "path" : "Sources/FFT",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "fft"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "SwiftSound"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "6.0"
}
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
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/12] Write fft-entitlement.plist
[1/12] Write sources
[8/12] Write swift-version-2F0A5646E1D333AE.txt
[10/45] Emitting module ArgumentParserToolInfo
[11/45] Compiling ArgumentParserToolInfo ToolInfo.swift
[12/84] Compiling ArgumentParser NameSpecification.swift
[13/84] Compiling ArgumentParser Option.swift
[14/84] Compiling ArgumentParser OptionGroup.swift
[15/84] Compiling ArgumentParser AsyncParsableCommand.swift
[16/88] Compiling ArgumentParser CommandConfiguration.swift
[17/88] Compiling ArgumentParser CommandGroup.swift
[18/88] Compiling ArgumentParser EnumerableFlag.swift
[19/88] Compiling ArgumentParser ExpressibleByArgument.swift
[20/88] Emitting module ArgumentParser
[21/88] Compiling ArgumentParser BashCompletionsGenerator.swift
[22/88] Compiling ArgumentParser CompletionsGenerator.swift
[23/88] Compiling ArgumentParser FishCompletionsGenerator.swift
[24/88] Compiling ArgumentParser ZshCompletionsGenerator.swift
[25/88] Compiling ArgumentParser Argument.swift
[26/88] Emitting module SwiftPlot
[27/91] Compiling SwiftPlot SequencePlots.swift
[28/91] Compiling SwiftPlot Series.swift
[29/91] Compiling SwiftPlot SubPlot.swift
[30/91] Compiling ArgumentParser Platform.swift
[31/91] Compiling ArgumentParser SequenceExtensions.swift
[32/91] Compiling ArgumentParser StringExtensions.swift
[33/91] Compiling ArgumentParser Tree.swift
[38/91] Compiling ArgumentParser ArgumentSet.swift
[39/91] Compiling ArgumentParser CommandParser.swift
[40/91] Compiling ArgumentParser InputKey.swift
[41/91] Compiling ArgumentParser InputOrigin.swift
[42/91] Compiling ArgumentParser Name.swift
[43/91] Compiling ArgumentParser Parsed.swift
[44/91] Compiling ArgumentParser CompletionKind.swift
[45/91] Compiling ArgumentParser Errors.swift
[46/91] Compiling ArgumentParser Flag.swift
[47/91] Compiling ArgumentParser ParsableArguments.swift
[48/91] Compiling ArgumentParser ParsedValues.swift
[49/91] Compiling ArgumentParser HelpGenerator.swift
[50/91] Compiling ArgumentParser MessageInfo.swift
[51/91] Compiling ArgumentParser UsageGenerator.swift
[52/91] Compiling ArgumentParser CollectionExtensions.swift
[53/91] Compiling ArgumentParser ParserError.swift
[54/91] Compiling ArgumentParser SplitArguments.swift
[55/91] Compiling ArgumentParser DumpHelpGenerator.swift
[56/91] Compiling ArgumentParser HelpCommand.swift
[58/91] Compiling ArgumentParser ArgumentHelp.swift
[59/91] Compiling ArgumentParser ArgumentVisibility.swift
[60/91] Compiling ArgumentParser ParsableArgumentsValidation.swift
[61/91] Compiling ArgumentParser ParsableCommand.swift
[62/91] Compiling ArgumentParser ArgumentDecoder.swift
[65/91] Compiling ArgumentParser ArgumentDefinition.swift
[89/93] Compiling SVGRenderer SVGRenderer.swift
[90/93] Emitting module SVGRenderer
[91/99] Compiling SwiftSound spectrumToSvg.swift
[92/99] Compiling SwiftSound stft.swift
[93/99] Compiling SwiftSound revealInFinder.swift
[94/99] Emitting module SwiftSound
[95/99] Compiling SwiftSound readRawAudio.swift
[96/99] Compiling SwiftSound fft.swift
[97/101] Compiling FFT main.swift
[98/101] Emitting module FFT
[98/101] Write Objects.LinkFileList
[99/101] Linking fft
[100/101] Applying fft
Build complete! (17.67s)
Fetching https://github.com/KarthikRIyer/swiftplot.git
Fetching https://github.com/apple/swift-argument-parser from cache
[1/6708] Fetching swiftplot
Fetched https://github.com/apple/swift-argument-parser from cache (0.69s)
Fetched https://github.com/KarthikRIyer/swiftplot.git from cache (1.52s)
Computing version for https://github.com/KarthikRIyer/swiftplot.git
Computed https://github.com/KarthikRIyer/swiftplot.git at 2.0.0 (2.61s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.47s)
Creating working copy for https://github.com/KarthikRIyer/swiftplot.git
Working copy of https://github.com/KarthikRIyer/swiftplot.git resolved at 2.0.0
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
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: you may be able to install freetype2 using your system-packager:
    brew install freetype2
warning: you may be able to install freetype2 using your system-packager:
    brew install freetype2
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    },
    {
      "identity" : "swiftplot",
      "requirement" : {
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          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/KarthikRIyer/swiftplot.git"
    }
  ],
  "manifest_display_name" : "SwiftSound",
  "name" : "SwiftSound",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
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      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSound",
      "targets" : [
        "SwiftSound"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "fft",
      "targets" : [
        "FFT"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSound",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSound",
      "path" : "Sources/SwiftSound",
      "product_dependencies" : [
        "SwiftPlot",
        "SVGRenderer"
      ],
      "product_memberships" : [
        "SwiftSound",
        "fft"
      ],
      "sources" : [
        "fft.swift",
        "readRawAudio.swift",
        "revealInFinder.swift",
        "spectrumToSvg.swift",
        "stft.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "FFT",
      "module_type" : "SwiftTarget",
      "name" : "FFT",
      "path" : "Sources/FFT",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "fft"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "SwiftSound"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "6.0"
}
Done.