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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 main (e90d0a), with Swift 6.1 for Linux on 5 May 2025 17:55:56 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nathantannar4/Engine.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/nathantannar4/Engine
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
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 main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/nathantannar4/Engine.git
https://github.com/nathantannar4/Engine.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-syntax",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "509.0.0",
            "upper_bound" : "600.1.1"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-syntax"
    }
  ],
  "manifest_display_name" : "Engine",
  "name" : "Engine",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Engine",
      "targets" : [
        "Engine"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "EngineCore",
      "targets" : [
        "EngineCore"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "EngineCoreC",
      "targets" : [
        "EngineCoreC"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "EngineMacros",
      "targets" : [
        "EngineMacros"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "EngineMacrosCore",
      "targets" : [
        "EngineMacrosCore"
      ],
      "type" : {
        "macro" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "EngineTests",
      "module_type" : "SwiftTarget",
      "name" : "EngineTests",
      "path" : "Sources/EngineTests",
      "product_dependencies" : [
        "SwiftSyntaxMacrosTestSupport"
      ],
      "sources" : [
        "EngineCoreMultiViewVisitorTests.swift",
        "EngineCoreRuntimeTests.swift",
        "EngineCoreViewVisitorTests.swift",
        "EngineMacroTests.swift",
        "EngineViewTraitTests.swift"
      ],
      "target_dependencies" : [
        "Engine",
        "EngineMacros"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EngineMacrosCore",
      "module_type" : "SwiftTarget",
      "name" : "EngineMacrosCore",
      "path" : "Sources/EngineMacrosCore",
      "product_dependencies" : [
        "SwiftSyntaxMacros",
        "SwiftCompilerPlugin"
      ],
      "product_memberships" : [
        "EngineMacros",
        "EngineMacrosCore"
      ],
      "sources" : [
        "EngineMacrosCore.swift",
        "StyledViewMacro.swift"
      ],
      "type" : "macro"
    },
    {
      "c99name" : "EngineMacros",
      "module_type" : "SwiftTarget",
      "name" : "EngineMacros",
      "path" : "Sources/EngineMacros",
      "product_memberships" : [
        "EngineMacros"
      ],
      "sources" : [
        "StyledView.swift"
      ],
      "target_dependencies" : [
        "Engine",
        "EngineMacrosCore"
      ],
      "type" : "library"
    },
    {
      "c99name" : "EngineCoreC",
      "module_type" : "ClangTarget",
      "name" : "EngineCoreC",
      "path" : "Sources/EngineCoreC",
      "product_memberships" : [
        "Engine",
        "EngineCore",
        "EngineCoreC",
        "EngineMacros"
      ],
      "sources" : [
        "visitors.c"
      ],
      "type" : "library"
    },
    {
      "c99name" : "EngineCore",
      "module_type" : "SwiftTarget",
      "name" : "EngineCore",
      "path" : "Sources/EngineCore",
      "product_memberships" : [
        "Engine",
        "EngineCore",
        "EngineMacros"
      ],
      "sources" : [
        "AnyViewVisitor.swift",
        "ConditionalContentVisitor.swift",
        "CustomViewVisitor.swift",
        "EmptyViewVisitor.swift",
        "EnvironmentKeyVisitor.swift",
        "ForEachVisitor.swift",
        "GroupVisitor.swift",
        "ModifiedContentVisitor.swift",
        "MultiViewVisitor.swift",
        "OptionalVisitor.swift",
        "ProtocolConformance.swift",
        "Runtime.swift",
        "SectionVisitor.swift",
        "TupleViewVisitor.swift",
        "TupleVisitor.swift",
        "TypeDescriptor.swift",
        "TypeIdentifier.swift",
        "TypeMetadata.swift",
        "UnsafePointer.swift",
        "ViewModifierVisitor.swift",
        "ViewTraitKeyVisitor.swift",
        "ViewTypeIdentifier.swift",
        "ViewVisitor.swift"
      ],
      "target_dependencies" : [
        "EngineCoreC"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Engine",
      "module_type" : "SwiftTarget",
      "name" : "Engine",
      "path" : "Sources/Engine",
      "product_memberships" : [
        "Engine",
        "EngineMacros"
      ],
      "sources" : [
        "Sources/AnyAnimatableData.swift",
        "Sources/AnyShape.swift",
        "Sources/AnyShapeStyle+Extensions.swift",
        "Sources/AnyView.swift",
        "Sources/AnyViewModifier.swift",
        "Sources/AttributedString+Extensions.swift",
        "Sources/BindingTransform.swift",
        "Sources/Color+Extensions.swift",
        "Sources/ConditionalContent.swift",
        "Sources/ConditionalLayout.swift",
        "Sources/ConditionalShape.swift",
        "Sources/ConditionalView.swift",
        "Sources/EmptyShape.swift",
        "Sources/Environment+Extensions.swift",
        "Sources/EnvironmentKeyVisitor.swift",
        "Sources/EnvironmentOrValue.swift",
        "Sources/EnvironmentValueReader.swift",
        "Sources/EnvironmentValuesVisitor.swift",
        "Sources/Font+Extensions.swift",
        "Sources/ForEachSubview.swift",
        "Sources/GraphInputs.swift",
        "Sources/Group.swift",
        "Sources/HostingController.swift",
        "Sources/HostingView.swift",
        "Sources/Image+Extensions.swift",
        "Sources/IsNilTransform.swift",
        "Sources/IsNotNilTransform.swift",
        "Sources/LayoutAdapter.swift",
        "Sources/LayoutBuilder.swift",
        "Sources/LayoutThatFits.swift",
        "Sources/MainActor.swift",
        "Sources/MultiViewAdapter.swift",
        "Sources/MultiViewVisitor.swift",
        "Sources/Never.swift",
        "Sources/OptionalAdapter.swift",
        "Sources/PreferenceKeyReader.swift",
        "Sources/PrimitiveView.swift",
        "Sources/PrimitiveViewModifier.swift",
        "Sources/PropertyList.swift",
        "Sources/ProposedSize.swift",
        "Sources/SectionView.swift",
        "Sources/ShapeAdapter.swift",
        "Sources/ShapeBuilder.swift",
        "Sources/StateOrBinding.swift",
        "Sources/StaticCondition.swift",
        "Sources/StaticConditionalContent.swift",
        "Sources/StaticConditionalModifier.swift",
        "Sources/StaticContent.swift",
        "Sources/StaticModifier.swift",
        "Sources/StyleContext.swift",
        "Sources/SymmetricallyScaledText.swift",
        "Sources/Text+Extensions.swift",
        "Sources/TextAttachment.swift",
        "Sources/TextBuilder.swift",
        "Sources/TextReader.swift",
        "Sources/TraitValueKey.swift",
        "Sources/Transaction.swift",
        "Sources/UnaryViewAdaptor.swift",
        "Sources/UnaryViewModifier.swift",
        "Sources/UnwrapTransform.swift",
        "Sources/UpdatePhase.swift",
        "Sources/UserInterfaceIdiomContent.swift",
        "Sources/UserInterfaceIdiomModifier.swift",
        "Sources/VariadicView.swift",
        "Sources/VersionedDynamicProperty.swift",
        "Sources/VersionedView.swift",
        "Sources/VersionedViewInput.swift",
        "Sources/VersionedViewModifier.swift",
        "Sources/ViewAdapter.swift",
        "Sources/ViewAlias.swift",
        "Sources/ViewInputConditionalContent.swift",
        "Sources/ViewInputConditionalModifier.swift",
        "Sources/ViewInputKey.swift",
        "Sources/ViewInputs.swift",
        "Sources/ViewInputsVisitor.swift",
        "Sources/ViewModifierBuilder.swift",
        "Sources/ViewModifierContent.swift",
        "Sources/ViewModifierVisitor.swift",
        "Sources/ViewOutputAlias.swift",
        "Sources/ViewOutputKey.swift",
        "Sources/ViewStackAxisReader.swift",
        "Sources/ViewStyle.swift",
        "Sources/ViewTraitKey.swift",
        "Sources/ViewTraitKeyVisitor.swift",
        "Sources/ViewUpdateDebug.swift",
        "Sources/ViewVisitor.swift",
        "module.swift"
      ],
      "target_dependencies" : [
        "EngineCore"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/swiftlang/swift-syntax
[1/70346] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax from cache (5.48s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 600.0.1 (7.45s)
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 600.0.1
Building for debugging...
[0/38] Write sources
[18/38] Compiling _SwiftSyntaxCShims dummy.c
In file included from /host/spi-builder-workspace/Sources/EngineCoreC/visitors.c:5:
/host/spi-builder-workspace/Sources/EngineCoreC/include/visitors.h:8:10: fatal error: 'TargetConditionals.h' file not found
    8 | #include <TargetConditionals.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[19/38] Compiling EngineCoreC visitors.c
[19/38] Write swift-version-24593BA9C3E375BF.txt
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
In file included from /host/spi-builder-workspace/Sources/EngineCoreC/visitors.c:5:
/host/spi-builder-workspace/Sources/EngineCoreC/include/visitors.h:8:10: fatal error: 'TargetConditionals.h' file not found
    8 | #include <TargetConditionals.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[0/19] Compiling EngineCoreC visitors.c
[0/19] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.1 linux