SwiftTUI – Build Information – Swift Package Index

Build Information

Failed to build SwiftTUI, reference main (b8c087), with Swift 6.4 for Wasm on 24 Sep 2026 08:40:28 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/rxtech-lab/SwiftTUI.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/rxtech-lab/SwiftTUI
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at b8c087b fix: text remaining from last page (#12)
Cloned https://github.com/rxtech-lab/SwiftTUI.git
Revision (git rev-parse @):
b8c087b9d097e667a487899a4988764e684fb0ab
SUCCESS checkout https://github.com/rxtech-lab/SwiftTUI.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/rxtech-lab/SwiftTUI.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/apple/swift-docc-plugin
[1/2345] Fetching swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin (0.57s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (1.64s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3829] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (0.70s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.94s)
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
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
Building for debugging...
[Planning deferred tasks]
[18 / 26] SwiftTUI
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/SwiftTUI/RunLoop/Application.swift:19:29: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m17 |[0;0m   private var invalidatedNodes: [Node] = []
 [0;36m18 |[0;0m   private var updateScheduled = false
 [0;36m19 |[0;0m   private let updateQueue = [4;39mDispatchQueue[0;0m(label: "SwiftTUI.Application.UpdateQueue", target: .main)
    [0;36m|[0;0m                             `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m20 |[0;0m
 [0;36m21 |[0;0m   public init<I: View>(rootView: I, runLoopType: RunLoopType = .dispatch) {
/host/spi-builder-workspace/Sources/SwiftTUI/RunLoop/Application.swift:42:20: [1;31merror: [1;39mcannot find type 'DispatchSourceRead' in scope[0;0m
 [0;36m40 |[0;0m   }
 [0;36m41 |[0;0m
 [0;36m42 |[0;0m   var stdInSource: [4;39mDispatchSourceRead[0;0m?
    [0;36m|[0;0m                    `- [1;31merror: [1;39mcannot find type 'DispatchSourceRead' in scope[0;0m
 [0;36m43 |[0;0m
 [0;36m44 |[0;0m   public enum RunLoopType {
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/SwiftTUI/Controls/Control.swift /host/spi-builder-workspace/Sources/SwiftTUI/Controls/Window.swift /host/spi-builder-workspace/Sources/SwiftTUI/Debug/Control+logTree.swift /host/spi-builder-workspace/Sources/SwiftTUI/Debug/Node+logTree.swift /host/spi-builder-workspace/Sources/SwiftTUI/Debug/log.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/AttributeScopes+SwiftTUIAttributes.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Cell.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/CellAttributes.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Color.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Edges.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Extended.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Position.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Rect.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Rendering/EscapeSequence.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Rendering/Layer.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Rendering/LayerDrawing.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Rendering/Renderer.swift /host/spi-builder-workspace/Sources/SwiftTUI/Drawing/Size.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/Binding.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/Environment.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/ObservedObject.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/State.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/View+Environment.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/View+ObservableObject.swift /host/spi-builder-workspace/Sources/SwiftTUI/PropertyWrappers/View+State.swift /host/spi-builder-workspace/Sources/SwiftTUI/RunLoop/ASCII.swift /host/spi-builder-workspace/Sources/SwiftTUI/RunLoop/Application.swift /host/spi-builder-workspace/Sources/SwiftTUI/RunLoop/ArrowKeyParser.swift /host/spi-builder-workspace/Sources/SwiftTUI/SwiftTUI.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/ComposedView.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/GenericView.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/LayoutRootView.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/ModifierView.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/Node.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/PrimitiveView.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/View.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/Weak.swift /host/spi-builder-workspace/Sources/SwiftTUI/ViewGraph/WeakSet.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/Button.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/Color+View.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/Divider.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/GeometryReader.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/List.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/ScrollView.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/Spacer.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/Text.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Controls/TextField.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/EmptyView.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/ForEach.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Group.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Background.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Bold.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Border.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/FixedFrame.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/FlexibleFrame.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Focusable.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/ForegroundColor.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Italic.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/OnAppear.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Padding.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/SetEnvironment.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Strikethrough.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Tag.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Task.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Modifiers/Underline.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Navigation/NavigationDestinationModifier.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Navigation/NavigationInternals.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Navigation/NavigationLink.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Navigation/NavigationPath.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Navigation/NavigationSplitView.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Navigation/NavigationStack.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Optional+View.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Stacks/Alignment.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Stacks/Axis.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Stacks/HStack.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Stacks/VStack.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Stacks/ZStack.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Toolbar/Toolbar.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/Toolbar/ToolbarHost.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/TupleView.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/ViewBuilder.swift /host/spi-builder-workspace/Sources/SwiftTUI/Views/_ConditionalView.swift -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftTUI -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/SwiftTUI_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/Modules/SwiftTUI.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/Modules/SwiftTUI.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/SwiftTUI-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/SwiftTUI-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/SwiftTUI-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftTUI.build/Debug-webassembly-wasm32/SwiftTUI-t.build/Objects-normal/wasm32/Modules/SwiftTUI.swiftmodule
[27 / 35] SwiftTUI
error: Build failed
BUILD FAILURE 6.4 wasm