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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 Outils, reference main (5d25c6), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 14:15:23 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/vsanthanam/Outils.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/vsanthanam/Outils
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 5d25c61 Fix Build
Cloned https://github.com/vsanthanam/Outils.git
Revision (git rev-parse @):
5d25c61662c3657dd4fdf4bd71ddd7c0c6c1bf91
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/vsanthanam/Outils.git at main
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/nicklockwood/SwiftFormat
Fetching https://github.com/apple/swift-docc-symbolkit
[1/2049] Fetching swift-docc-plugin
[227/5424] Fetching swift-docc-plugin, swift-docc-symbolkit
[3602/52154] Fetching swift-docc-plugin, swift-docc-symbolkit, swiftformat
Fetched https://github.com/apple/swift-docc-plugin from cache (50.47s)
Fetched https://github.com/nicklockwood/SwiftFormat from cache (50.47s)
Fetched https://github.com/apple/swift-docc-symbolkit from cache (50.47s)
Computing version for https://github.com/nicklockwood/SwiftFormat
Computed https://github.com/nicklockwood/SwiftFormat at 0.51.7 (52.43s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.2.0 (0.57s)
Computing version for https://github.com/apple/swift-docc-symbolkit
Computed https://github.com/apple/swift-docc-symbolkit at 1.0.0 (0.63s)
Creating working copy for https://github.com/nicklockwood/SwiftFormat
Working copy of https://github.com/nicklockwood/SwiftFormat resolved at 0.51.7
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.2.0
Creating working copy for https://github.com/apple/swift-docc-symbolkit
Working copy of https://github.com/apple/swift-docc-symbolkit resolved at 1.0.0
========================================
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": "outils",
      "name": "Outils",
      "url": "https://github.com/vsanthanam/Outils.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Outils",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/vsanthanam/Outils.git
[1/351] Fetching outils
Fetched https://github.com/vsanthanam/Outils.git from cache (0.90s)
Creating working copy for https://github.com/vsanthanam/Outils.git
Working copy of https://github.com/vsanthanam/Outils.git resolved at main (5d25c61)
warning: '.resolve-product-dependencies': dependency 'outils' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/vsanthanam/Outils.git
https://github.com/vsanthanam/Outils.git
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-docc-plugin"
    },
    {
      "identity" : "swiftformat",
      "requirement" : {
        "exact" : [
          "0.51.7"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/nicklockwood/SwiftFormat"
    }
  ],
  "manifest_display_name" : "Outils",
  "name" : "Outils",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "Outils",
      "targets" : [
        "Outils"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OutilsTests",
      "module_type" : "SwiftTarget",
      "name" : "OutilsTests",
      "path" : "Tests/OutilsTests",
      "sources" : [
        "ErrorMessageTests.swift"
      ],
      "target_dependencies" : [
        "Outils"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Outils",
      "module_type" : "SwiftTarget",
      "name" : "Outils",
      "path" : "Sources/Outils",
      "product_memberships" : [
        "Outils"
      ],
      "sources" : [
        "ArrayExtensions.swift",
        "BundleExtensions.swift",
        "Casting.swift",
        "CollectionExtensions.swift",
        "ErrorMessage.swift",
        "OptionalExtensions.swift",
        "OptionalType.swift",
        "ProcessEnvironment.swift",
        "StringExtensions.swift",
        "StringInterpolationExtensions.swift",
        "SwiftUI/ColorExtensions.swift",
        "SwiftUI/EnvironmentValuesExtensions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
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 SwiftFormatPlugin
[2/2] Compiling plugin Swift-DocC Preview
[3/3] Compiling plugin Swift-DocC
Building for debugging...
[3/5] Write sources
[4/5] Write swift-version-2F0A5646E1D333AE.txt
[6/17] Compiling Outils OptionalType.swift
[7/18] Compiling Outils ColorExtensions.swift
[8/18] Compiling Outils StringInterpolationExtensions.swift
[9/18] Compiling Outils StringExtensions.swift
[10/18] Compiling Outils OptionalExtensions.swift
[11/18] Compiling Outils ProcessEnvironment.swift
/Users/admin/builder/spi-builder-workspace/Sources/Outils/ProcessEnvironment.swift:30:23: warning: static property 'variables' is not concurrency-safe because non-'Sendable' type 'ProcessEnvironment.Variables' may have shared mutable state; this is an error in the Swift 6 language mode
28 | public enum ProcessEnvironment {
29 |
30 |     public static let variables = Variables()
   |                       |- warning: static property 'variables' is not concurrency-safe because non-'Sendable' type 'ProcessEnvironment.Variables' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: add '@MainActor' to make static property 'variables' part of global actor 'MainActor'
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
31 |
32 |     public static var arguments: [String] {
   :
34 |     }
35 |
36 |     public struct Variables {
   |                   `- note: consider making struct 'Variables' conform to the 'Sendable' protocol
37 |         public subscript<T>(_ key: String) -> T where T: EnvironmentVariableRepresentable {
38 |             value(forKey: key)
[12/18] Compiling Outils Casting.swift
[13/18] Compiling Outils CollectionExtensions.swift
[14/18] Emitting module Outils
/Users/admin/builder/spi-builder-workspace/Sources/Outils/ProcessEnvironment.swift:30:23: warning: static property 'variables' is not concurrency-safe because non-'Sendable' type 'ProcessEnvironment.Variables' may have shared mutable state; this is an error in the Swift 6 language mode
28 | public enum ProcessEnvironment {
29 |
30 |     public static let variables = Variables()
   |                       |- warning: static property 'variables' is not concurrency-safe because non-'Sendable' type 'ProcessEnvironment.Variables' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: add '@MainActor' to make static property 'variables' part of global actor 'MainActor'
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
31 |
32 |     public static var arguments: [String] {
   :
34 |     }
35 |
36 |     public struct Variables {
   |                   `- note: consider making struct 'Variables' conform to the 'Sendable' protocol
37 |         public subscript<T>(_ key: String) -> T where T: EnvironmentVariableRepresentable {
38 |             value(forKey: key)
[15/18] Compiling Outils ArrayExtensions.swift
[16/18] Compiling Outils BundleExtensions.swift
[17/18] Compiling Outils ErrorMessage.swift
[18/18] Compiling Outils EnvironmentValuesExtensions.swift
Build complete! (19.20s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-docc-plugin"
    },
    {
      "identity" : "swiftformat",
      "requirement" : {
        "exact" : [
          "0.51.7"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/nicklockwood/SwiftFormat"
    }
  ],
  "manifest_display_name" : "Outils",
  "name" : "Outils",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "Outils",
      "targets" : [
        "Outils"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OutilsTests",
      "module_type" : "SwiftTarget",
      "name" : "OutilsTests",
      "path" : "Tests/OutilsTests",
      "sources" : [
        "ErrorMessageTests.swift"
      ],
      "target_dependencies" : [
        "Outils"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Outils",
      "module_type" : "SwiftTarget",
      "name" : "Outils",
      "path" : "Sources/Outils",
      "product_memberships" : [
        "Outils"
      ],
      "sources" : [
        "ArrayExtensions.swift",
        "BundleExtensions.swift",
        "Casting.swift",
        "CollectionExtensions.swift",
        "ErrorMessage.swift",
        "OptionalExtensions.swift",
        "OptionalType.swift",
        "ProcessEnvironment.swift",
        "StringExtensions.swift",
        "StringInterpolationExtensions.swift",
        "SwiftUI/ColorExtensions.swift",
        "SwiftUI/EnvironmentValuesExtensions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
✅  Doc result (pending) reported
========================================
GenerateDocs
========================================
Generating docs at path:  $PWD/.docs/vsanthanam/outils/main
Repository:               vsanthanam/Outils
Swift version used:       6.1
        .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.0.0"),
Target:                   Outils
Generating documentation for 'Outils'...
Converting documentation...
Conversion complete! (0.12s)
Generated DocC archive at '/Users/admin/builder/spi-builder-workspace/.docs/vsanthanam/outils/main'
Building for debugging...
[0/8] Write sources
[1/8] Write snippet-extract-tool-entitlement.plist
[1/8] Write sources
[4/8] Write swift-version-2F0A5646E1D333AE.txt
[6/53] Emitting module SymbolKit
[7/57] Compiling SymbolKit Mixin+Equals.swift
[8/57] Compiling SymbolKit Mixin+Hash.swift
[9/57] Compiling SymbolKit Mixin.swift
[10/57] Compiling SymbolKit LineList.swift
[11/57] Compiling SymbolKit Position.swift
[12/57] Compiling SymbolKit SourceRange.swift
[13/57] Compiling SymbolKit Metadata.swift
[14/57] Compiling SymbolKit Module.swift
[15/57] Compiling SymbolKit OperatingSystem.swift
[16/57] Compiling SymbolKit Platform.swift
[17/57] Compiling SymbolKit Identifier.swift
[18/57] Compiling SymbolKit KindIdentifier.swift
[19/57] Compiling SymbolKit Location.swift
[20/57] Compiling SymbolKit Mutability.swift
[21/57] Compiling SymbolKit GenericConstraint.swift
[22/57] Compiling SymbolKit GenericParameter.swift
[23/57] Compiling SymbolKit Generics.swift
[24/57] Compiling SymbolKit Namespace.swift
[25/57] Compiling SymbolKit Names.swift
[26/57] Compiling SymbolKit SPI.swift
[27/57] Compiling SymbolKit Snippet.swift
[28/57] Compiling SymbolKit Extension.swift
[29/57] Compiling SymbolKit Relationship.swift
[30/57] Compiling SymbolKit RelationshipKind.swift
[31/57] Compiling SymbolKit SourceOrigin.swift
[32/57] Compiling SymbolKit GenericConstraints.swift
[33/57] Compiling SymbolKit Swift.swift
[34/57] Compiling SymbolKit DeclarationFragments.swift
[35/57] Compiling SymbolKit Fragment.swift
[36/57] Compiling SymbolKit FragmentKind.swift
[37/57] Compiling SymbolKit FunctionParameter.swift
[38/57] Compiling SymbolKit FunctionSignature.swift
[39/57] Compiling SymbolKit Symbol.swift
[40/57] Compiling SymbolKit SymbolKind.swift
[41/57] Compiling SymbolKit SymbolGraph.swift
[42/57] Compiling SymbolKit GraphCollector.swift
[43/57] Compiling SymbolKit SemanticVersion.swift
[44/57] Compiling SymbolKit AccessControl.swift
[45/57] Compiling SymbolKit Availability.swift
[46/57] Compiling SymbolKit AvailabilityItem.swift
[47/57] Compiling SymbolKit Domain.swift
[48/57] Compiling Snippets Snippet.swift
[49/57] Emitting module Snippets
[50/57] Compiling Snippets SnippetParser.swift
[51/57] Compiling SymbolKit UnifiedSymbol+Encodable.swift
[52/57] Compiling SymbolKit UnifiedSymbol.swift
[53/57] Compiling SymbolKit UnifiedSymbolGraph+Encodable.swift
[54/57] Compiling SymbolKit UnifiedSymbolGraph.swift
[55/61] Compiling snippet_extract URL+Status.swift
[56/61] Emitting module snippet_extract
[57/61] Compiling snippet_extract SnippetBuildCommand.swift
[58/61] Compiling snippet_extract SymbolGraph+Snippet.swift
[58/61] Write Objects.LinkFileList
[59/61] Linking snippet-extract-tool
[60/61] Applying snippet-extract-tool
Build of product 'snippet-extract' complete! (4.14s)
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/13] Compiling Outils StringInterpolationExtensions.swift
[3/13] Compiling Outils OptionalExtensions.swift
[4/13] Compiling Outils ColorExtensions.swift
[5/14] Compiling Outils ProcessEnvironment.swift
[6/14] Compiling Outils OptionalType.swift
[7/14] Compiling Outils StringExtensions.swift
[8/14] Compiling Outils Casting.swift
[9/14] Compiling Outils CollectionExtensions.swift
[10/14] Compiling Outils ArrayExtensions.swift
[11/14] Compiling Outils BundleExtensions.swift
[12/14] Compiling Outils ErrorMessage.swift
[13/14] Emitting module Outils
[14/14] Compiling Outils EnvironmentValuesExtensions.swift
Build of target: 'Outils' complete! (2.02s)
     118
2	/Users/admin/builder/spi-builder-workspace/.docs/vsanthanam/outils/main
✅  Doc result (uploading) reported
========================================
SyncDocs
========================================
Doc archive source directory: $PWD/.docs/vsanthanam/outils/main
File count: 118
Doc size:   2.0MB
Preparing doc bundle ...
Uploading prod-vsanthanam-outils-main-1da13e52.zip to s3://spi-docs-inbox/prod-vsanthanam-outils-main-1da13e52.zip
Copying... [17%]
Copying... [33%]
Copying... [50%]
Copying... [67%]
Copying... [84%]
Copying... [100%]
Done.