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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 MainOffender, reference main (a5c60f), with Swift 6.1 for macOS (SPM) on 1 May 2025 12:27:29 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: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mattmassicotte/MainOffender.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mattmassicotte/MainOffender
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a5c60fe Update contact info
Cloned https://github.com/mattmassicotte/MainOffender.git
Revision (git rev-parse @):
a5c60feeb800a0d41d0fbc3f102f6c286fe3c549
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mattmassicotte/MainOffender.git at main
========================================
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": "mainoffender",
      "name": "MainOffender",
      "url": "https://github.com/mattmassicotte/MainOffender.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/MainOffender",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/mattmassicotte/MainOffender.git
[1/215] Fetching mainoffender
Fetched https://github.com/mattmassicotte/MainOffender.git from cache (0.68s)
Creating working copy for https://github.com/mattmassicotte/MainOffender.git
Working copy of https://github.com/mattmassicotte/MainOffender.git resolved at main (a5c60fe)
warning: '.resolve-product-dependencies': dependency 'mainoffender' 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/mattmassicotte/MainOffender.git
https://github.com/mattmassicotte/MainOffender.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MainOffender",
  "name" : "MainOffender",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "MainOffender",
      "targets" : [
        "MainOffender"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MainOffenderTests",
      "module_type" : "SwiftTarget",
      "name" : "MainOffenderTests",
      "path" : "Tests/MainOffenderTests",
      "sources" : [
        "AsyncAdditionTests.swift",
        "MainActorTests.swift",
        "ThreadExecutorTests.swift",
        "UndoManagerTests.swift"
      ],
      "target_dependencies" : [
        "MainOffender"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MainOffender",
      "module_type" : "SwiftTarget",
      "name" : "MainOffender",
      "path" : "Sources/MainOffender",
      "product_memberships" : [
        "MainOffender"
      ],
      "sources" : [
        "MainActor+RunUnsafely.swift",
        "MainDispatchQueue.swift",
        "MainOperationQueue.swift",
        "NotificationCenter+Unsafe.swift",
        "RunLoop+Async.swift",
        "ThreadExecutor.swift",
        "UndoManager+MainActor.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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/10] Compiling MainOffender RunLoop+Async.swift
[4/10] Compiling MainOffender MainOperationQueue.swift
[5/10] Compiling MainOffender NotificationCenter+Unsafe.swift
/Users/admin/builder/spi-builder-workspace/Sources/MainOffender/NotificationCenter+Unsafe.swift:10:7: warning: initialization of immutable value 'nonMainblock' was never used; consider replacing with assignment to '_' or removing it
 8 | 		using block: @escaping @MainActor (Notification) -> Void
 9 | 	) -> NSObjectProtocol {
10 | 		let nonMainblock = unsafeBitCast(block, to: ((Notification) -> Void).self)
   |       `- warning: initialization of immutable value 'nonMainblock' was never used; consider replacing with assignment to '_' or removing it
11 |
12 | 		return addObserver(forName: name, object: obj, queue: .main) { notification in
[6/10] Emitting module MainOffender
[7/10] Compiling MainOffender ThreadExecutor.swift
[8/10] Compiling MainOffender UndoManager+MainActor.swift
[9/10] Compiling MainOffender MainActor+RunUnsafely.swift
[10/10] Compiling MainOffender MainDispatchQueue.swift
Build complete! (8.17s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MainOffender",
  "name" : "MainOffender",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "MainOffender",
      "targets" : [
        "MainOffender"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MainOffenderTests",
      "module_type" : "SwiftTarget",
      "name" : "MainOffenderTests",
      "path" : "Tests/MainOffenderTests",
      "sources" : [
        "AsyncAdditionTests.swift",
        "MainActorTests.swift",
        "ThreadExecutorTests.swift",
        "UndoManagerTests.swift"
      ],
      "target_dependencies" : [
        "MainOffender"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MainOffender",
      "module_type" : "SwiftTarget",
      "name" : "MainOffender",
      "path" : "Sources/MainOffender",
      "product_memberships" : [
        "MainOffender"
      ],
      "sources" : [
        "MainActor+RunUnsafely.swift",
        "MainDispatchQueue.swift",
        "MainOperationQueue.swift",
        "NotificationCenter+Unsafe.swift",
        "RunLoop+Async.swift",
        "ThreadExecutor.swift",
        "UndoManager+MainActor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
✅  Doc result (pending) reported
========================================
GenerateDocs
========================================
Generating docs at path:  $PWD/.docs/mattmassicotte/mainoffender/main
Repository:               mattmassicotte/MainOffender
Swift version used:       6.1
Target:                   MainOffender
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/swift-docc-render-artifact/.git/
From https://github.com/swiftlang/swift-docc-render-artifact
 * branch            release/6.2 -> FETCH_HEAD
 * [new branch]      release/6.2 -> origin/release/6.2
HEAD is now at 8799b69 Update the artifact
Cloned https://github.com/swiftlang/swift-docc-render-artifact
Extracting symbol information for 'MainOffender'...
Finished extracting symbol information for 'MainOffender'. (4.36s)
Building documentation for 'MainOffender'...
Finished building documentation for 'MainOffender' (0.11s)
Generated documentation archive at:
  /Users/admin/builder/spi-builder-workspace/.docs/mattmassicotte/mainoffender/main
Fetching https://github.com/swiftlang/swift-docc-plugin from cache
Fetched https://github.com/swiftlang/swift-docc-plugin from cache (0.50s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Computed https://github.com/swiftlang/swift-docc-plugin at 1.4.3 (1.16s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit from cache
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.80s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.41s)
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.4.3
Building for debugging...
[0/8] Write sources
[2/8] Write snippet-extract-tool-entitlement.plist
[2/8] Write sources
[4/8] Write swift-version-2F0A5646E1D333AE.txt
[6/53] Emitting module SymbolKit
[7/57] Compiling Snippets SnippetParser.swift
[8/57] Compiling SymbolKit GenericConstraint.swift
[9/57] Compiling SymbolKit GenericParameter.swift
[10/57] Compiling SymbolKit Generics.swift
[11/57] Compiling SymbolKit Namespace.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] Emitting module Snippets
[18/57] Compiling Snippets Snippet.swift
[19/57] Compiling SymbolKit Mixin+Equals.swift
[20/57] Compiling SymbolKit Mixin+Hash.swift
[21/57] Compiling SymbolKit Mixin.swift
[22/57] Compiling SymbolKit LineList.swift
[23/57] Compiling SymbolKit Position.swift
[24/57] Compiling SymbolKit SemanticVersion.swift
[25/57] Compiling SymbolKit AccessControl.swift
[26/57] Compiling SymbolKit Availability.swift
[27/57] Compiling SymbolKit AvailabilityItem.swift
[28/57] Compiling SymbolKit Domain.swift
[29/57] Compiling SymbolKit DeclarationFragments.swift
[30/57] Compiling SymbolKit Fragment.swift
[31/57] Compiling SymbolKit FragmentKind.swift
[32/57] Compiling SymbolKit FunctionParameter.swift
[33/57] Compiling SymbolKit FunctionSignature.swift
[34/57] Compiling SymbolKit Relationship.swift
[35/57] Compiling SymbolKit RelationshipKind.swift
[36/57] Compiling SymbolKit SourceOrigin.swift
[37/57] Compiling SymbolKit GenericConstraints.swift
[38/57] Compiling SymbolKit Swift.swift
[39/57] Compiling SymbolKit Identifier.swift
[40/57] Compiling SymbolKit KindIdentifier.swift
[41/57] Compiling SymbolKit Location.swift
[42/57] Compiling SymbolKit Mutability.swift
[43/57] Compiling SymbolKit Names.swift
[44/57] Compiling SymbolKit SPI.swift
[45/57] Compiling SymbolKit Snippet.swift
[46/57] Compiling SymbolKit Extension.swift
[47/57] Compiling SymbolKit Symbol.swift
[48/57] Compiling SymbolKit SymbolKind.swift
[49/57] Compiling SymbolKit SymbolGraph.swift
[50/57] Compiling SymbolKit GraphCollector.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 SymbolGraph+Snippet.swift
[56/61] Compiling snippet_extract URL+Status.swift
[57/61] Compiling snippet_extract SnippetBuildCommand.swift
[58/61] Emitting module snippet_extract
[58/61] Write Objects.LinkFileList
[59/61] Linking snippet-extract-tool
[60/61] Applying snippet-extract-tool
Build of product 'snippet-extract' complete! (4.00s)
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/9] Compiling MainOffender MainActor+RunUnsafely.swift
[3/9] Compiling MainOffender MainDispatchQueue.swift
[4/9] Emitting module MainOffender
[5/9] Compiling MainOffender RunLoop+Async.swift
[6/9] Compiling MainOffender ThreadExecutor.swift
[7/9] Compiling MainOffender MainOperationQueue.swift
[8/9] Compiling MainOffender UndoManager+MainActor.swift
[9/9] Compiling MainOffender NotificationCenter+Unsafe.swift
/Users/admin/builder/spi-builder-workspace/Sources/MainOffender/NotificationCenter+Unsafe.swift:10:7: warning: initialization of immutable value 'nonMainblock' was never used; consider replacing with assignment to '_' or removing it
 8 | 		using block: @escaping @MainActor (Notification) -> Void
 9 | 	) -> NSObjectProtocol {
10 | 		let nonMainblock = unsafeBitCast(block, to: ((Notification) -> Void).self)
   |       `- warning: initialization of immutable value 'nonMainblock' was never used; consider replacing with assignment to '_' or removing it
11 |
12 | 		return addObserver(forName: name, object: obj, queue: .main) { notification in
Build of target: 'MainOffender' complete! (1.09s)
     122
2	/Users/admin/builder/spi-builder-workspace/.docs/mattmassicotte/mainoffender/main
✅  Doc result (uploading) reported
========================================
SyncDocs
========================================
Doc archive source directory: $PWD/.docs/mattmassicotte/mainoffender/main
File count: 122
Doc size:   2.0MB
Preparing doc bundle ...
Uploading prod-mattmassicotte-mainoffender-main-aa098c69.zip to s3://spi-docs-inbox/prod-mattmassicotte-mainoffender-main-aa098c69.zip
Copying... [16%]
Copying... [33%]
Copying... [49%]
Copying... [66%]
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Copying... [100%]
Done.