Swift Package IndexBuild Information
Failed to build Workflow, reference main (08eb59), with Swift 6.4 for Android on 12 Oct 2026 15:49:47 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344849-3":/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:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1Build Log
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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/square/workflow-swift.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/square/workflow-swift
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 08eb59a CLF-526: Raise platform minimums and use native Observation (#401)
Cloned https://github.com/square/workflow-swift.git
Revision (git rev-parse @):
08eb59a20b56a20a713a4ba53c1434a9751bbbf5
SUCCESS checkout https://github.com/square/workflow-swift.git at main
========================================
Build
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Selected platform: android
Swift version: 6.4
Building package at path: $PWD
https://github.com/square/workflow-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:34a00a57f57797b403a98b861c3ce940f20735b4cb78ef45654f0d4f3b0c0295
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
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Computed https://github.com/ReactiveCocoa/ReactiveSwift.git at 7.2.1 (8.10s)
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Computing version for https://github.com/ReactiveX/RxSwift.git
warning: 'rxswift': /Package@swift-5.9.swift:99:56: warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
97 | let package = Package(
98 | name: "RxSwift",
99 | platforms: [.iOS(.v12), .macOS(.v10_13), .watchOS(.v4), .tvOS(.v12), .visionOS(.v1)],
| `- warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
100 | products: ([
101 | [
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
Computed https://github.com/ReactiveX/RxSwift.git at 6.10.2 (0.32s)
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warning: 'rxswift': /host/spi-builder-workspace/.build/checkouts/RxSwift/Package@swift-5.9.swift:99:56: warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
97 | let package = Package(
98 | name: "RxSwift",
99 | platforms: [.iOS(.v12), .macOS(.v10_13), .watchOS(.v4), .tvOS(.v12), .visionOS(.v1)],
| `- warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
100 | products: ([
101 | [
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/604.0.0/swift-6.4.0-RELEASE-ubuntu_noble_x86_64-MacroSupport.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/604.0.0/swift-6.4.0-RELEASE-ubuntu_noble_x86_64-MacroSupport.tar.gz (0.17s)
Building for debugging...
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error: SwiftCompile normal aarch64 failed with a nonzero exit code. Command line: cd /host
/host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Property.swift:4:8: [1;31merror: [1;39mno such module 'Glibc'[0;0m
[0;36m2 |[0;0m import Darwin.POSIX.pthread
[0;36m3 |[0;0m #else
[0;36m4 |[0;0m import Glibc
[0;36m|[0;0m `- [1;31merror: [1;39mno such module 'Glibc'[0;0m
[0;36m5 |[0;0m #endif
[0;36m6 |[0;0m
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.0/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Action.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Atomic.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Bag.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Deprecations+Removals.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Disposable.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Event.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/EventLogger.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Flatten.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/FoundationExtensions.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Lifetime.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/AttemptMap.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Collect.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/CollectEvery.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/CombinePrevious.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/CompactMap.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Debounce.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Delay.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Dematerialize.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/DematerializeResults.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Filter.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/LazyMap.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Map.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/MapError.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Materialize.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/MaterializeAsResult.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/ObserveOn.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Observer.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Operators.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Reduce.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/ScanMap.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/SkipFirst.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/SkipRepeats.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/SkipWhile.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/TakeFirst.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/TakeLast.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/TakeUntil.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/TakeWhile.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/Throttle.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/UnaryAsyncOperator.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observers/UniqueValues.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Optional.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Property.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Reactive.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/ResultExtensions.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Scheduler.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Signal.Observer.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Signal.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/SignalProducer.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/UnidirectionalBinding.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/UninhabitedTypeGuards.swift /host/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/ValidatingProperty.swift -target aarch64-unknown-linux-android28 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/host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /android-ndk/android-ndk-r30/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/21 -Xcc -fno-omit-frame-pointer -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-android-aarch64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ReactiveSwift -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/ReactiveSwift_const_extract_protocols.json -in-process-plugin-server-path /root/.local/share/swiftly/toolchains/6.4.0/usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /root/.local/share/swiftly/toolchains/6.4.0/usr/lib/swift/host/plugins -plugin-path /root/.local/share/swiftly/toolchains/6.4.0/usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/Modules/ReactiveSwift.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/Modules/ReactiveSwift.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/ReactiveSwift-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/ReactiveSwift-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/ReactiveSwift-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-android-aarch64/ReactiveSwift-t.build/Objects-normal/aarch64/Modules/ReactiveSwift.swiftmodule
[420 / 721] SwiftSyntax600
error: Build failed
BUILD FAILURE 6.4 android