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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 swift-music with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 6

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/sh3l6orrr/swift-music.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sh3l6orrr/swift-music
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at ab10261 refactor code
Cloned https://github.com/sh3l6orrr/swift-music.git
Revision (git rev-parse @):
ab10261921f2b991b77c856ef793b3e23202c13d
SUCCESS checkout https://github.com/sh3l6orrr/swift-music.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/sh3l6orrr/swift-music.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/7] Write sources
[2/7] Write Run-entitlement.plist
[3/7] Write swift-version-6F35C1178C84523A.txt
[5/15] Compiling MusicTheory Note.swift
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:43:5: warning: var 'nameToNote' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 41 | ]
 42 |
 43 | var nameToNote: [String : Note] = [
    |     |- warning: var 'nameToNote' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToNote' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToNote' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 44 |     "C"    :  .C    ,
 45 |     "C#"   :  .CD   ,
[6/15] Compiling MusicTheory Scale.swift
[7/15] Compiling MusicTheory Quality.swift
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:63:5: warning: var 'qualityToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 61 | ]
 62 |
 63 | var qualityToIntervals: [Quality : [Interval]]  = [
    |     |- warning: var 'qualityToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'qualityToIntervals' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'qualityToIntervals' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 64 |     .power:                           [.octave, .p5],
 65 |     .suspended2ndTriad:               [.octave, .M2, .p5],
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:91:5: warning: var 'nameToQuality' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 89 | ]
 90 |
 91 | var nameToQuality: [String : Quality] = [
    |     |- warning: var 'nameToQuality' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToQuality' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToQuality' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 92 |     "5":     .power,
 93 |     "sus2":  .suspended2ndTriad,
[8/15] Compiling MusicTheory Interval.swift
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:16:5: warning: var 'semitoneToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 14 | ]
 15 |
 16 | var semitoneToInterval: [Int : Interval] = [
    |     |- warning: var 'semitoneToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'semitoneToInterval' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'semitoneToInterval' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 |     0  :.octave ,
 18 |     1  :.m2     ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:1:5: warning: var 'nameToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
  1 | var nameToInterval: [String : Interval] = [
    |     |- warning: var 'nameToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToInterval' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToInterval' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  2 |     "octave"            :.octave ,
  3 |     "minor second"      :.m2     ,
[9/15] Compiling MusicTheory Chord.swift
[10/15] Emitting module MusicTheory
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:1:5: warning: var 'nameToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
  1 | var nameToInterval: [String : Interval] = [
    |     |- warning: var 'nameToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToInterval' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToInterval' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  2 |     "octave"            :.octave ,
  3 |     "minor second"      :.m2     ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:16:5: warning: var 'semitoneToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 14 | ]
 15 |
 16 | var semitoneToInterval: [Int : Interval] = [
    |     |- warning: var 'semitoneToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'semitoneToInterval' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'semitoneToInterval' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 |     0  :.octave ,
 18 |     1  :.m2     ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:31:5: warning: var 'modeToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 29 | ]
 30 |
 31 | var modeToIntervals: [Mode : [Interval]] = [
    |     |- warning: var 'modeToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'modeToIntervals' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'modeToIntervals' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 32 |     .major :            [.octave, .M2, .M3, .p4, .p5, .M6, .M7],
 33 |     .minor :            [.octave, .M2, .m3, .p4, .p5, .m6, .m7]
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:43:5: warning: var 'nameToNote' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 41 | ]
 42 |
 43 | var nameToNote: [String : Note] = [
    |     |- warning: var 'nameToNote' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToNote' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToNote' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 44 |     "C"    :  .C    ,
 45 |     "C#"   :  .CD   ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:63:5: warning: var 'qualityToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 61 | ]
 62 |
 63 | var qualityToIntervals: [Quality : [Interval]]  = [
    |     |- warning: var 'qualityToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'qualityToIntervals' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'qualityToIntervals' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 64 |     .power:                           [.octave, .p5],
 65 |     .suspended2ndTriad:               [.octave, .M2, .p5],
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:91:5: warning: var 'nameToQuality' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 89 | ]
 90 |
 91 | var nameToQuality: [String : Quality] = [
    |     |- warning: var 'nameToQuality' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToQuality' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToQuality' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 92 |     "5":     .power,
 93 |     "sus2":  .suspended2ndTriad,
[11/15] Compiling MusicTheory Lookup.swift
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:1:5: warning: var 'nameToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
  1 | var nameToInterval: [String : Interval] = [
    |     |- warning: var 'nameToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToInterval' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToInterval' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  2 |     "octave"            :.octave ,
  3 |     "minor second"      :.m2     ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:16:5: warning: var 'semitoneToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 14 | ]
 15 |
 16 | var semitoneToInterval: [Int : Interval] = [
    |     |- warning: var 'semitoneToInterval' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'semitoneToInterval' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'semitoneToInterval' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 |     0  :.octave ,
 18 |     1  :.m2     ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:31:5: warning: var 'modeToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 29 | ]
 30 |
 31 | var modeToIntervals: [Mode : [Interval]] = [
    |     |- warning: var 'modeToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'modeToIntervals' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'modeToIntervals' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 32 |     .major :            [.octave, .M2, .M3, .p4, .p5, .M6, .M7],
 33 |     .minor :            [.octave, .M2, .m3, .p4, .p5, .m6, .m7]
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:43:5: warning: var 'nameToNote' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 41 | ]
 42 |
 43 | var nameToNote: [String : Note] = [
    |     |- warning: var 'nameToNote' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToNote' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToNote' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 44 |     "C"    :  .C    ,
 45 |     "C#"   :  .CD   ,
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:63:5: warning: var 'qualityToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 61 | ]
 62 |
 63 | var qualityToIntervals: [Quality : [Interval]]  = [
    |     |- warning: var 'qualityToIntervals' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'qualityToIntervals' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'qualityToIntervals' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 64 |     .power:                           [.octave, .p5],
 65 |     .suspended2ndTriad:               [.octave, .M2, .p5],
/Users/admin/builder/spi-builder-workspace/Sources/MusicTheory/Lookup.swift:91:5: warning: var 'nameToQuality' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 89 | ]
 90 |
 91 | var nameToQuality: [String : Quality] = [
    |     |- warning: var 'nameToQuality' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: convert 'nameToQuality' to a 'let' constant to make 'Sendable' shared state immutable
    |     |- note: annotate 'nameToQuality' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 92 |     "5":     .power,
 93 |     "sus2":  .suspended2ndTriad,
[12/15] Compiling MusicTheory Mode.swift
[13/17] Emitting module Run
[14/17] Compiling Run main.swift
[14/17] Write Objects.LinkFileList
[15/17] Linking Run
[16/17] Applying Run
Build complete! (7.78s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-music",
  "name" : "swift-music",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    },
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "tvos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "MusicTheory",
      "targets" : [
        "MusicTheory"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Run",
      "targets" : [
        "Run"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Run",
      "module_type" : "SwiftTarget",
      "name" : "Run",
      "path" : "Sources/Run",
      "product_memberships" : [
        "Run"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "MusicTheory"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "MusicTheoryTests",
      "module_type" : "SwiftTarget",
      "name" : "MusicTheoryTests",
      "path" : "Tests/MusicTheoryTests",
      "sources" : [
        "AnyTest.swift",
        "TestChord.swift",
        "TestInterval.swift",
        "TestNote.swift",
        "TestScale.swift"
      ],
      "target_dependencies" : [
        "MusicTheory"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MusicTheory",
      "module_type" : "SwiftTarget",
      "name" : "MusicTheory",
      "path" : "Sources/MusicTheory",
      "product_memberships" : [
        "MusicTheory",
        "Run"
      ],
      "sources" : [
        "Chord.swift",
        "Interval.swift",
        "Lookup.swift",
        "Mode.swift",
        "Note.swift",
        "Quality.swift",
        "Scale.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.