Swift Package IndexBuild Information
Failed to build swift-effect, reference main (55524a), with Swift 6.4 for Android on 28 Sep 2026 02:08:44 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/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>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Alex-Ozun/swift-effect.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/Alex-Ozun/swift-effect
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 55524a0 add perform-with-handler operator
Cloned https://github.com/Alex-Ozun/swift-effect.git
Revision (git rev-parse @):
55524a0a7188c61610c9fc059b9c195ec5ddc014
SUCCESS checkout https://github.com/Alex-Ozun/swift-effect.git at main
========================================
Build
========================================
Selected platform: android
Swift version: 6.4
Building package at path: $PWD
https://github.com/Alex-Ozun/swift-effect.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$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
Fetching https://github.com/groue/Semaphore
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Computing version for https://github.com/pointfreeco/swift-custom-dump
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Building for debugging...
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swift-frontend: /home/build-user/llvm-project/llvm/include/llvm/Support/Casting.h:566: decltype(auto) llvm::cast(const From &) [To = swift::SILValue, From = llvm::PointerUnion<swift::SILValue, swift::SILInstruction *, swift::Operand *>]: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0. Program arguments: /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend -frontend -c "/host/spi-builder-workspace/Sources/Effect/Built-in Effects/ExitEffect.swift" "/host/spi-builder-workspace/Sources/Effect/Built-in Effects/StartEffect.swift" "/host/spi-builder-workspace/Sources/Effect/Built-in Effects/TaskEffect.swift" /host/spi-builder-workspace/Sources/Effect/Continuation.swift /host/spi-builder-workspace/Sources/Effect/Effect+Macro.swift /host/spi-builder-workspace/Sources/Effect/Effect.swift /host/spi-builder-workspace/Sources/Effect/EffectExecutors.swift /host/spi-builder-workspace/Sources/Effect/EffectHandler.swift /host/spi-builder-workspace/Sources/Effect/EffectStream.swift -primary-file /host/spi-builder-workspace/Sources/Effect/Synchronization.swift /host/spi-builder-workspace/Sources/Effect/TaskEffectScheduler.swift /host/spi-builder-workspace/Sources/Effect/TestHandler.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.dia -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 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -load-plugin-executable /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/EffectMacros#EffectMacros -enable-upcoming-feature NonisolatedNonsendingByDefault -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/swift-effect.build/Debug-android-aarch64/Effect-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -no-auto-bridging-header-chaining -module-name Effect -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Effect_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/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.o -index-unit-output-path /swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
1. Swift version 6.4.2-dev (LLVM 15622a86b1749a9, Swift d2e983b81b18217)
2. Compiling with the current language version
3. While evaluating request ExecuteSILPipelineRequest(Run pipelines { Mandatory Diagnostic Passes + Enabling Optimization Passes } on SIL for Effect)
4. While running pass #204 SILFunctionTransform "SendNonSendable" on SILFunction "@$s6Effect12withSendable9isolation__q_ScA_pSgYi_xyYaKYCcq_xyYaYbKYAYTcYaKYCYTXEtYaKr0_lFxyYaYbKYTcfU_".
for expression at [/host/spi-builder-workspace/Sources/Effect/Synchronization.swift:45:28 - line:47:3] RangeText="{
try await sendable.value()
"
#0 0x000056c81dec0d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x8bb1d98)
#1 0x000056c81debe585 llvm::sys::RunSignalHandlers() (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x8baf585)
#2 0x000056c81dec1b41 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x000074556b289520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000074556b2dd9bc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969bc)
#5 0x000074556b289476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000074556b26f7f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000074556b26f71b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000074556b280e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x000056c816f7b7d9 swift::PartitionOpEvaluator<swift::regionanalysisimpl::BlockPartitionState::recomputeExitFromEntry(swift::regionanalysisimpl::PartitionOpTranslator&)::ComputeEvaluator>::handleAssignNonDisconnectedIntoSendingResult(swift::PartitionOp const&) RegionAnalysis.cpp:0:0
#10 0x000056c816f4f3e4 swift::regionanalysisimpl::BlockPartitionState::recomputeExitFromEntry(swift::regionanalysisimpl::PartitionOpTranslator&) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x1c403e4)
#11 0x000056c816f52762 swift::RegionAnalysisFunctionInfo::runDataflow() (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x1c43762)
#12 0x000056c816f50e8c swift::RegionAnalysisFunctionInfo::RegionAnalysisFunctionInfo(swift::SILFunction*, swift::PostOrderFunctionInfo*) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x1c41e8c)
#13 0x000056c816f53858 swift::RegionAnalysis::newFunctionAnalysis(swift::SILFunction*) crtstuff.c:0:0
#14 0x000056c817160be3 swift::FunctionAnalysisBase<swift::RegionAnalysisFunctionInfo>::get(swift::SILFunction*) crtstuff.c:0:0
#15 0x000056c81715fffc (anonymous namespace)::SendNonSendable::run() SendNonSendable.cpp:0:0
#16 0x000056c816c4a6e0 swift::SILPassManager::runPassOnFunction(unsigned int, swift::SILFunction*) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x193b6e0)
#17 0x000056c816c4bd11 swift::SILPassManager::runFunctionPasses(unsigned int, unsigned int) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x193cd11)
#18 0x000056c816c4f69e swift::SILPassManager::execute() (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x194069e)
#19 0x000056c816c482c8 swift::SILPassManager::executePassPipelinePlan(swift::SILPassPipelinePlan const&) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x19392c8)
#20 0x000056c816c4827b swift::ExecuteSILPipelineRequest::evaluate(swift::Evaluator&, swift::SILPipelineExecutionDescriptor) const (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x193927b)
#21 0x000056c816c6fc4a swift::SimpleRequest<swift::ExecuteSILPipelineRequest, std::tuple<> (swift::SILPipelineExecutionDescriptor), (swift::RequestFlags)1>::evaluateRequest(swift::ExecuteSILPipelineRequest const&, swift::Evaluator&) crtstuff.c:0:0
#22 0x000056c816c5716a swift::ExecuteSILPipelineRequest::OutputType swift::Evaluator::getResultUncached<swift::ExecuteSILPipelineRequest, swift::ExecuteSILPipelineRequest::OutputType swift::evaluateOrFatal<swift::ExecuteSILPipelineRequest>(swift::Evaluator&, swift::ExecuteSILPipelineRequest)::'lambda'()>(swift::ExecuteSILPipelineRequest const&, swift::ExecuteSILPipelineRequest::OutputType swift::evaluateOrFatal<swift::ExecuteSILPipelineRequest>(swift::Evaluator&, swift::ExecuteSILPipelineRequest)::'lambda'()) crtstuff.c:0:0
#23 0x000056c816c484bf swift::executePassPipelinePlan(swift::SILModule*, swift::SILPassPipelinePlan const&, bool, swift::irgen::IRGenModule*) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x19394bf)
#24 0x000056c816c5854a swift::runSILDiagnosticPasses(swift::SILModule&) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x194954a)
#25 0x000056c8160d5b53 swift::CompilerInstance::performSILProcessing(swift::SILModule*) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0xdc6b53)
#26 0x000056c815d272f1 performCompileStepsPostSILGen(swift::CompilerInstance&, std::unique_ptr<swift::SILModule, std::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>, llvm::ArrayRef<swift::PrimarySpecificPaths>) FrontendTool.cpp:0:0
#27 0x000056c815d25c4f swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0xa16c4f)
#28 0x000056c815d3dfda withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) FrontendTool.cpp:0:0
#29 0x000056c815d2baa9 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#30 0x000056c815d286ee swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0xa196ee)
#31 0x000056c815a40ba8 swift::mainEntry(int, char const**) (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x731ba8)
#32 0x000074556b270d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#33 0x000074556b270e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#34 0x000056c815a3fa65 _start (/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend+0x730a65)
*** Signal 6: Backtracing from 0x74556b3659dd... done ***
*** Program crashed: Aborted at 0x000074556b3659dd ***
Platform: x86_64 Linux (Ubuntu 22.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0 0x000074556b3659dd <unknown> in libc.so.6
Registers:
rax 0x0000000000000000 0
rdx 0x0000000000000006 6
rcx 0x000074556b3659dd 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00 H=·ðÿÿs·ÃH··#´··
rbx 0x0000000000000006 6
rsi 0x00000000000007fb 2043
rdi 0x00000000000007fb 2043
rbp 0x00000000000007fb 2043
rsp 0x000056c83b101128 6b 1b ec 1d c8 56 00 00 b0 13 10 3b c8 56 00 00 k·ì·ÈV··°··;ÈV··
r8 0x000056c83b1013b0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r9 0x000056c83b1013b0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r10 0x000056c83b1013b0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r11 0x0000000000000246 582
r12 0x0000000000000006 6
r13 0x0000000000000016 22
r14 0x0000000000000000 0
r15 0x000056c83b1011c8 ff ff ff 7f fe ff ff ff 00 00 00 00 00 00 00 00 ÿÿÿ·þÿÿÿ········
rip 0x000074556b3659dd 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00 H=·ðÿÿs·ÃH··#´··
rflags 0x0000000000000246 ZF PF
cs 0x0033 fs 0x0000 gs 0x0000
Images (109 omitted):
0x000074556b247000–0x000074556b403401 6a6cb5a80fd5e5bb5bf3aeaa111add98e88843a5 libc.so.6 /usr/lib/x86_64-linux-gnu/libc.so.6
Backtrace took 0.00s
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/Effect/Built-in\ Effects/ExitEffect.swift /host/spi-builder-workspace/Sources/Effect/Built-in\ Effects/StartEffect.swift /host/spi-builder-workspace/Sources/Effect/Built-in\ Effects/TaskEffect.swift /host/spi-builder-workspace/Sources/Effect/Continuation.swift /host/spi-builder-workspace/Sources/Effect/Effect+Macro.swift /host/spi-builder-workspace/Sources/Effect/Effect.swift /host/spi-builder-workspace/Sources/Effect/EffectExecutors.swift /host/spi-builder-workspace/Sources/Effect/EffectHandler.swift /host/spi-builder-workspace/Sources/Effect/EffectStream.swift -primary-file /host/spi-builder-workspace/Sources/Effect/Synchronization.swift /host/spi-builder-workspace/Sources/Effect/TaskEffectScheduler.swift /host/spi-builder-workspace/Sources/Effect/TestHandler.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.dia -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 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -load-plugin-executable /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/EffectMacros\#EffectMacros -enable-upcoming-feature NonisolatedNonsendingByDefault -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/swift-effect.build/Debug-android-aarch64/Effect-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Effect -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Effect_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/swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.o -index-unit-output-path /swift-effect.build/Debug-android-aarch64/Effect-t.build/Objects-normal/aarch64/Synchronization.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 android