Hydra – Build Information – Swift Package Index

Build Information

Failed to build Hydra, reference master (dde016), with Swift 6.4 for Android on 17 Sep 2026 15:51:56 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/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:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/malcommac/Hydra.git
Reference: master
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/malcommac/Hydra
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at dde0163 Merge pull request #88 from revolter/patch-1
Cloned https://github.com/malcommac/Hydra.git
Revision (git rev-parse @):
dde016391e8fbeec9fc9aac1174bd73b7311059a
SUCCESS checkout https://github.com/malcommac/Hydra.git at master
========================================
Build
========================================
Selected platform:         android
Swift version:             6.4
Building package at path:  $PWD
https://github.com/malcommac/Hydra.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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:abadcff584c273feba50641b454858d377ba30b35ea7287a94f45ebd8afd0ea0
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
Building for debugging...
[Planning deferred tasks]
[28 / 36] Hydra
/host/spi-builder-workspace/Sources/Hydra/Promise+RetryWhen.swift:48:83: [1;33mwarning: [1;39m'unowned' ownership of capture 'self' differs from implicitly-captured strong reference in outer scope[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implicit-strong-capture\ImplicitStrongCapture]8;;\]
[0;36m45 |[0;0m         // We'll create a next promise which will be resolved when attempts to resolve self (source promise)
[0;36m46 |[0;0m         // is reached (with a fulfill or a rejection).
[0;36m47 |[0;0m         let nextPromise = Promise<Value>(in: self.context, token: self.invalidationToken) { (resolve, reject, operation) in
   [0;36m|[0;0m                                                                                           |- [1;39mnote: [1;39m'self' implicitly strongly captured here[0;0m
   [0;36m|[0;0m                                                                                           `- [1;39mnote: [1;39madd 'self' as a capture list item to silence[0;0m
[0;36m48 |[0;0m             innerPromise = self.defer(delay).recover(in: self.context) { [unowned self] (error) -> (Promise<Value>) in
   [0;36m|[0;0m                                                                                   |- [1;33mwarning: [1;39m'unowned' ownership of capture 'self' differs from implicitly-captured strong reference in outer scope[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implicit-strong-capture\ImplicitStrongCapture]8;;\]
   [0;36m|[0;0m                                                                                   `- [1;39mnote: [1;39mexplicitly assign the capture list item to silence[0;0m
[0;36m49 |[0;0m                 // If promise is rejected we'll decrement the attempts counter
[0;36m50 |[0;0m                 remainingAttempts -= 1
[#ImplicitStrongCapture]: <https://docs.swift.org/compiler/documentation/diagnostics/implicit-strong-capture>
error: SwiftCompile normal aarch64 /host/spi-builder-workspace/Sources/Hydra/Promise+Await.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile Promise+Await.swift
/host/spi-builder-workspace/Sources/Hydra/Promise+Await.swift:133:41: [1;31merror: [1;39mbinary operator '!=' cannot be applied to two 'DispatchQueue' operands[0;0m
[0;36m131 |[0;0m         let isNotMainQueue = self.queue.label != DispatchQueue.main.label
[0;36m132 |[0;0m         #else
[0;36m133 |[0;0m         let isNotMainQueue = [4;39mself.queue[0;0m != [4;39mDispatchQueue.main[0;0m
    [0;36m|[0;0m                                         `- [1;31merror: [1;39mbinary operator '!=' cannot be applied to two 'DispatchQueue' operands[0;0m
[0;36m134 |[0;0m         #endif
[0;36m135 |[0;0m
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/Hydra/Commons.swift /host/spi-builder-workspace/Sources/Hydra/Context.swift /host/spi-builder-workspace/Sources/Hydra/DispatchTimerWrapper.swift /host/spi-builder-workspace/Sources/Hydra/Promise+All.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Always.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Any.swift -primary-file /host/spi-builder-workspace/Sources/Hydra/Promise+Async.swift -primary-file /host/spi-builder-workspace/Sources/Hydra/Promise+Await.swift -primary-file /host/spi-builder-workspace/Sources/Hydra/Promise+Cancel.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Catch.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Defer.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Map.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Observer.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Pass.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Recover.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Reduce.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Retry.swift /host/spi-builder-workspace/Sources/Hydra/Promise+RetryWhen.swift /host/spi-builder-workspace/Sources/Hydra/Promise+State.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Then.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Timeout.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Validate.swift /host/spi-builder-workspace/Sources/Hydra/Promise+Zip.swift /host/spi-builder-workspace/Sources/Hydra/Promise.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/supplementaryOutputs-3 -target aarch64-unknown-linux-android28 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/sysroot -sysroot /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/sysroot -I /host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64 -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 5 -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 /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/plugins/testing\#/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/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_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-r27d/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/18 -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/Hydra.build/Debug-android-aarch64/Hydra-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Hydra -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Hydra_const_extract_protocols.json -in-process-plugin-server-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/plugins -plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Promise+Async.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Promise+Await.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Promise+Cancel.o -index-unit-output-path /Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Promise+Async.o -index-unit-output-path /Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Promise+Await.o -index-unit-output-path /Hydra.build/Debug-android-aarch64/Hydra-t.build/Objects-normal/aarch64/Promise+Cancel.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 android