Swift Package IndexBuild Information
Failed to build swift-function-composition, reference 0.1.0 (460e34), with Swift 6.4 for Linux on 27 Sep 2026 18:42:27 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:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/capturecontext/swift-function-composition.git
Reference: 0.1.0
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
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From https://github.com/capturecontext/swift-function-composition
* tag 0.1.0 -> FETCH_HEAD
HEAD is now at 460e34c test: cover tuple helpers
Cloned https://github.com/capturecontext/swift-function-composition.git
Revision (git rev-parse @):
460e34c36395c4928e164cacadf1677d7abf303d
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/capturecontext/swift-function-composition.git at 0.1.0
========================================
Build
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Selected platform: linux
Swift version: 6.4
Building package at path: $PWD
https://github.com/capturecontext/swift-function-composition.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:c77fcce225e223ac0fafed844619173fc6de8d62dd560eeb28db3182af6a282b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Fetching https://github.com/pointfreeco/swift-concurrency-extras.git
[1/1058] Fetching swift-concurrency-extras
Fetched https://github.com/pointfreeco/swift-concurrency-extras.git (0.53s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras.git
Computed https://github.com/pointfreeco/swift-concurrency-extras.git at 1.4.1 (0.73s)
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras.git
Working copy of https://github.com/pointfreeco/swift-concurrency-extras.git resolved at 1.4.1
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 589]
[Constructing 213 / 1173]
[92 / 178] _Tuples
[102 / 202] FunctionCompositionOperators
[126 / 202] _Currying
[136 / 202] _Currying-product
[147 / 205] Either
[149 / 205] NominalFunctionTypes
[155 / 207] FunctionComposition
[168 / 217] NominalFunctionTypes
[171 / 217] NominalFunctionTypes
[177 / 217] NominalFunctionTypes
swift-frontend: /home/build-user/swift/include/swift/AST/Types.h:5374: SILResultInfo &swift::SILFunctionType::getMutableErrorResult(): Assertion `hasErrorResult()' failed.
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0. Program arguments: /usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/NominalFunctionTypes/Async/AsyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Async/MainActorAsyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Async/SendableAsyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/AsyncThrowing/AsyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/AsyncThrowing/MainActorAsyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/AsyncThrowing/SendableAsyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Exports.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/MainActorSyncFunc.swift -primary-file /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/SendableSyncFunc.swift -primary-file /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/SyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/SyncThrowing/MainActorSyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/SyncThrowing/SendableSyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/SyncThrowing/SyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/_AnyNominalFunctionType.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/_MainActorMarkers.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.dia -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -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 -enable-anonymous-context-mangled-names -file-compilation-dir /host -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-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -no-auto-bridging-header-chaining -module-name NominalFunctionTypes -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/NominalFunctionTypes_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 -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.o -index-unit-output-path /swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.o -index-unit-output-path /swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.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 IRGenRequest(IR Generation for file "/host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/SyncFunc.swift")
4. While emitting IR SIL function "@$s20NominalFunctionTypes04SyncB0PAAE3run4with6OutputQz5InputQz_tF".
for 'run(with:)' (at /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/SyncFunc.swift:23:9)
#0 0x000061a77bc40d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x8bb1d98)
#1 0x000061a77bc3e585 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x8baf585)
#2 0x000061a77bc41b41 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x0000778cdefeb520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000778cdf03f9bc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969bc)
#5 0x0000778cdefeb476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x0000778cdefd17f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000778cdefd171b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000778cdefe2e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x000061a7742c8393 (/usr/bin/swift-frontend+0x1239393)
#10 0x000061a7742adfcc (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) IRGenSIL.cpp:0:0
#11 0x000061a7742a8bfc (anonymous namespace)::IRGenSILFunction::emitSILFunction() IRGenSIL.cpp:0:0
#12 0x000061a7742a5af3 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) (/usr/bin/swift-frontend+0x1216af3)
#13 0x000061a774138e12 swift::irgen::IRGenerator::emitGlobalTopLevel(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>> const&) (/usr/bin/swift-frontend+0x10a9e12)
#14 0x000061a773fa40cc swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const (/usr/bin/swift-frontend+0xf150cc)
#15 0x000061a77401a0e2 swift::GeneratedModule swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::callDerived<0ul>(swift::Evaluator&, std::integer_sequence<unsigned long, 0ul>) const crtstuff.c:0:0
#16 0x000061a774019fb9 swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) crtstuff.c:0:0
#17 0x000061a7737ea03c swift::IRGenRequest::OutputType swift::Evaluator::getResultUncached<swift::IRGenRequest, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()>(swift::IRGenRequest const&, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()) crtstuff.c:0:0
#18 0x000061a773fa7f3d swift::performIRGeneration(swift::FileUnit*, swift::IRGenOptions const&, swift::TBDGenOptions const&, std::unique_ptr<swift::SILModule, std::default_delete<swift::SILModule>>, llvm::StringRef, swift::PrimarySpecificPaths const&, std::shared_ptr<llvm::cas::ObjectStore>, llvm::StringRef, llvm::GlobalVariable**, swift::cas::SwiftCASOutputBackend*, std::optional<llvm::cas::ObjectRef>) (/usr/bin/swift-frontend+0xf18f3d)
#19 0x000061a773aaee15 generateIR(swift::IRGenOptions const&, swift::TBDGenOptions const&, std::unique_ptr<swift::SILModule, std::default_delete<swift::SILModule>>, swift::PrimarySpecificPaths const&, std::shared_ptr<llvm::cas::ObjectStore>, swift::cas::SwiftCASOutputBackend*, llvm::StringRef, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, llvm::GlobalVariable*&, llvm::ArrayRef<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, llvm::ArrayRef<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, std::optional<llvm::cas::ObjectRef>) FrontendTool.cpp:0:0
#20 0x000061a773aa786f 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
#21 0x000061a773aa5c4f swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0xa16c4f)
#22 0x000061a773abdfda withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) FrontendTool.cpp:0:0
#23 0x000061a773aabaa9 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#24 0x000061a773aa86ee swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0xa196ee)
#25 0x000061a7737c0ba8 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x731ba8)
#26 0x0000778cdefd2d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#27 0x0000778cdefd2e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#28 0x000061a7737bfa65 _start (/usr/bin/swift-frontend+0x730a65)
*** Signal 6: Backtracing from 0x778cdf0c79dd... done ***
*** Program crashed: Aborted at 0x0000778cdf0c79dd ***
Platform: x86_64 Linux (Ubuntu 22.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0 0x0000778cdf0c79dd <unknown> in libc.so.6
Registers:
rax 0x0000000000000000 0
rdx 0x0000000000000006 6
rcx 0x0000778cdf0c79dd 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00 H=·ðÿÿs·ÃH··#´··
rbx 0x0000000000000006 6
rsi 0x0000000000000159 345
rdi 0x0000000000000159 345
rbp 0x0000000000000159 345
rsp 0x000061a7b1204068 6b 1b c4 7b a7 61 00 00 f0 42 20 b1 a7 61 00 00 k·Ä{§a··ðB ±§a··
r8 0x000061a7b12042f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r9 0x000061a7b12042f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r10 0x000061a7b12042f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r11 0x0000000000000246 582
r12 0x0000000000000000 0
r13 0x0000000000000000 0
r14 0x0000000000000000 0
r15 0x000061a7b1204078 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ················
rip 0x0000778cdf0c79dd 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 (37 omitted):
0x0000778cdefa9000–0x0000778cdf165401 6a6cb5a80fd5e5bb5bf3aeaa111add98e88843a5 libc.so.6 /usr/lib/x86_64-linux-gnu/libc.so.6
Backtrace took 0.00s
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/NominalFunctionTypes/Async/AsyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Async/MainActorAsyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Async/SendableAsyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/AsyncThrowing/AsyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/AsyncThrowing/MainActorAsyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/AsyncThrowing/SendableAsyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Exports.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/MainActorSyncFunc.swift -primary-file /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/SendableSyncFunc.swift -primary-file /host/spi-builder-workspace/Sources/NominalFunctionTypes/Sync/SyncFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/SyncThrowing/MainActorSyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/SyncThrowing/SendableSyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/SyncThrowing/SyncThrowingFunc.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/_AnyNominalFunctionType.swift /host/spi-builder-workspace/Sources/NominalFunctionTypes/_MainActorMarkers.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.dia -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -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 -enable-anonymous-context-mangled-names -file-compilation-dir /host -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-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name NominalFunctionTypes -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/NominalFunctionTypes_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 -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.o -index-unit-output-path /swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SendableSyncFunc.o -index-unit-output-path /swift-function-composition.build/Debug-linux-x86_64/NominalFunctionTypes-t.build/Objects-normal/x86_64/SyncFunc.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 linux