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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

Failed to build Engine, reference 2.1.4 (e90d0a), with Swift 5.10 for macOS (SPM) on 5 May 2025 18:00:50 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nathantannar4/Engine.git
Reference: 2.1.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/nathantannar4/Engine
 * tag               2.1.4      -> FETCH_HEAD
HEAD is now at e90d0a7 2.1.4
Cloned https://github.com/nathantannar4/Engine.git
Revision (git rev-parse @):
e90d0a735b317fb50eef400be38a322e5d32b83c
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/nathantannar4/Engine.git at 2.1.4
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/nathantannar4/Engine.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/23] Write sources
[18/23] Compiling _SwiftSyntaxCShims dummy.c
[19/23] Write swift-version-33747A42983211AE.txt
[20/29] Compiling EngineCoreC visitors.c
[22/29] Emitting module SwiftSyntax509
[23/29] Emitting module SwiftSyntax510
[24/29] Emitting module SwiftSyntax600
[25/29] Compiling SwiftSyntax510 Empty.swift
[26/29] Compiling SwiftSyntax509 Empty.swift
[27/29] Compiling SwiftSyntax600 Empty.swift
[28/116] Compiling SwiftSyntax SourceEdit.swift
[29/116] Compiling SwiftSyntax SourceLength.swift
[30/116] Compiling SwiftSyntax SourceLocation.swift
[31/116] Compiling SwiftSyntax SourcePresence.swift
[32/116] Compiling SwiftSyntax SwiftSyntaxCompatibility.swift
[33/116] Compiling SwiftSyntax Syntax.swift
[34/116] Compiling SwiftSyntax SyntaxArena.swift
[35/116] Compiling SwiftSyntax AbsolutePosition.swift
[36/116] Compiling SwiftSyntax AbsoluteRawSyntax.swift
[37/116] Compiling SwiftSyntax AbsoluteSyntaxInfo.swift
[38/116] Compiling SwiftSyntax Assert.swift
[39/116] Compiling SwiftSyntax BumpPtrAllocator.swift
[40/116] Compiling SwiftSyntax CommonAncestor.swift
[41/116] Compiling SwiftSyntax Convenience.swift
[42/116] Compiling SwiftSyntax CustomTraits.swift
[43/116] Compiling SwiftSyntax Identifier.swift
[44/116] Compiling SwiftSyntax MemoryLayout.swift
[45/116] Compiling SwiftSyntax MissingNodeInitializers.swift
[46/116] Compiling SwiftSyntax RawSyntax.swift
[47/116] Compiling SwiftSyntax RawSyntaxLayoutView.swift
[48/116] Compiling SwiftSyntax RawSyntaxNodeProtocol.swift
[49/116] Compiling SwiftSyntax RawSyntaxTokenView.swift
[50/123] Emitting module SwiftSyntax
[51/123] Emitting module EngineCore
[52/125] Compiling EngineCore ViewVisitor.swift
[53/125] Compiling SwiftSyntax SyntaxChildren.swift
[54/125] Compiling SwiftSyntax SyntaxCollection.swift
[55/125] Compiling SwiftSyntax SyntaxHashable.swift
[56/125] Compiling SwiftSyntax SyntaxIdentifier.swift
[57/125] Compiling SwiftSyntax SyntaxNodeFactory.swift
[58/125] Compiling SwiftSyntax SyntaxNodeStructure.swift
[59/125] Compiling EngineCore ViewTypeIdentifier.swift
[82/205] Compiling Engine ConditionalShape.swift
[83/205] Compiling Engine ConditionalView.swift
[84/205] Compiling Engine EmptyShape.swift
[85/205] Compiling Engine Environment+Extensions.swift
[86/205] Compiling Engine EnvironmentKeyVisitor.swift
[87/205] Compiling Engine EnvironmentOrValue.swift
[88/205] Compiling Engine EnvironmentValueReader.swift
[89/205] Compiling Engine EnvironmentValuesVisitor.swift
[90/205] Compiling Engine ViewInputConditionalModifier.swift
[91/205] Compiling Engine ViewInputKey.swift
[92/205] Compiling Engine ViewInputs.swift
[93/205] Compiling Engine ViewInputsVisitor.swift
[94/205] Compiling Engine ViewModifierBuilder.swift
[95/205] Compiling Engine ViewModifierContent.swift
[96/205] Compiling Engine ProposedSize.swift
[97/205] Compiling Engine SectionView.swift
[98/205] Compiling Engine ShapeAdapter.swift
[99/205] Compiling Engine ShapeBuilder.swift
[100/205] Compiling Engine StateOrBinding.swift
[101/205] Compiling Engine StaticCondition.swift
[102/205] Compiling Engine ConditionalLayout.swift
[103/205] Compiling Engine ViewModifierVisitor.swift
[104/205] Compiling Engine ViewOutputAlias.swift
[105/205] Compiling Engine TextReader.swift
[106/205] Compiling Engine TraitValueKey.swift
[107/205] Compiling Engine Transaction.swift
[108/205] Compiling Engine UnaryViewAdaptor.swift
[109/205] Compiling Engine UnaryViewModifier.swift
[110/205] Compiling Engine UnwrapTransform.swift
[111/205] Compiling Engine UpdatePhase.swift
[112/205] Compiling Engine UserInterfaceIdiomContent.swift
[113/205] Compiling Engine UserInterfaceIdiomModifier.swift
[114/205] Compiling Engine StaticConditionalContent.swift
[115/205] Compiling Engine StaticConditionalModifier.swift
[116/205] Compiling Engine StaticContent.swift
[117/205] Compiling Engine Font+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[118/205] Compiling Engine ForEachSubview.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[119/205] Compiling Engine GraphInputs.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[120/205] Compiling Engine Group.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[121/205] Compiling Engine HostingController.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[122/205] Compiling Engine HostingView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[123/205] Compiling Engine Image+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[124/205] Compiling Engine IsNilTransform.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[125/205] Compiling Engine IsNotNilTransform.swift
/Users/admin/builder/spi-builder-workspace/Sources/Engine/Sources/Group.swift:50:26: error: incorrect argument label in call (have 'subviews:_:', expected 'subviewsOf:_:')
                    Group(subviews: Content()) { source in
                         ^~~~~~~~~
                          subviewsOf
[134/213] Compiling Engine AnyAnimatableData.swift
[135/213] Compiling Engine AnyShape.swift
[136/213] Compiling Engine AnyShapeStyle+Extensions.swift
[137/213] Compiling Engine AnyView.swift
[138/213] Compiling Engine AnyViewModifier.swift
[139/213] Compiling Engine AttributedString+Extensions.swift
[140/213] Compiling Engine BindingTransform.swift
[141/213] Compiling Engine Color+Extensions.swift
[142/213] Compiling Engine ConditionalContent.swift
[143/213] Compiling Engine LayoutAdapter.swift
[144/213] Compiling Engine LayoutBuilder.swift
[145/213] Compiling Engine LayoutThatFits.swift
[146/213] Compiling Engine MainActor.swift
[147/213] Compiling Engine MultiViewAdapter.swift
[148/213] Compiling Engine MultiViewVisitor.swift
[149/213] Compiling Engine Never.swift
[150/213] Compiling Engine OptionalAdapter.swift
[151/213] Compiling Engine PreferenceKeyReader.swift
[152/213] Emitting module Engine
[165/213] Compiling Engine StaticModifier.swift
[166/213] Compiling Engine StyleContext.swift
[167/213] Compiling Engine SymmetricallyScaledText.swift
[168/213] Compiling Engine Text+Extensions.swift
[169/213] Compiling Engine TextAttachment.swift
[170/213] Compiling Engine TextBuilder.swift
[180/213] Compiling Engine PrimitiveView.swift
[181/213] Compiling Engine PrimitiveViewModifier.swift
[182/213] Compiling Engine PropertyList.swift
[189/213] Compiling Engine VariadicView.swift
[190/213] Compiling Engine VersionedDynamicProperty.swift
[191/213] Compiling Engine VersionedView.swift
[192/213] Compiling Engine VersionedViewInput.swift
[193/213] Compiling Engine VersionedViewModifier.swift
[194/213] Compiling Engine ViewAdapter.swift
[195/213] Compiling Engine ViewAlias.swift
[196/213] Compiling Engine ViewInputConditionalContent.swift
[197/213] Compiling Engine ViewOutputKey.swift
[198/213] Compiling Engine ViewStackAxisReader.swift
[199/213] Compiling Engine ViewStyle.swift
[200/213] Compiling Engine ViewTraitKey.swift
[201/213] Compiling Engine ViewTraitKeyVisitor.swift
[202/213] Compiling Engine ViewUpdateDebug.swift
[203/213] Compiling Engine ViewVisitor.swift
[204/213] Compiling Engine module.swift
error: fatalError
Fetching https://github.com/swiftlang/swift-syntax
[1/70346] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax from cache (30.67s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 600.0.1 (2.21s)
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 600.0.1
BUILD FAILURE 5.10 macosSpm