Swift Package IndexBuild Information
Failed to build swift-function-composition, reference 0.1.0 (460e34), with Swift 6.4 for Wasm on 27 Sep 2026 18:42:28 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:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1Build Log
========================================
RunAll
========================================
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
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
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
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/capturecontext/swift-function-composition.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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/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 (0.72s)
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 107 / 1126]
[81 / 167] FunctionComposition
[92 / 191] FunctionCompositionOperators
[119 / 191] _Tuples-product
[120 / 191] FunctionComposition
[132 / 192] FunctionComposition
[141 / 194] ConcurrencyExtras
[149 / 196] _Currying-product
[152 / 205] _Currying-product
[154 / 206] NominalFunctionTypes
[157 / 206] NominalFunctionTypes
[164 / 206] NominalFunctionTypesCompositionFunctions
[171 / 216] NominalFunctionTypesCompositionOperators
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-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.dia -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/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/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-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/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-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.o -index-unit-output-path /swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.o -index-unit-output-path /swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/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 0x000064221dd28d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x8bb1d98)
#1 0x000064221dd26585 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x8baf585)
#2 0x000064221dd29b41 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x0000719d55ae0520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000719d55b349bc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969bc)
#5 0x0000719d55ae0476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x0000719d55ac67f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000719d55ac671b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000719d55ad7e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00006422163b0393 (/usr/bin/swift-frontend+0x1239393)
#10 0x0000642216395fcc (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) IRGenSIL.cpp:0:0
#11 0x0000642216390bfc (anonymous namespace)::IRGenSILFunction::emitSILFunction() IRGenSIL.cpp:0:0
#12 0x000064221638daf3 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) (/usr/bin/swift-frontend+0x1216af3)
#13 0x0000642216220e12 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 0x000064221608c0cc swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const (/usr/bin/swift-frontend+0xf150cc)
#15 0x00006422161020e2 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 0x0000642216101fb9 swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) crtstuff.c:0:0
#17 0x00006422158d203c 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 0x000064221608ff3d 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 0x0000642215b96e15 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 0x0000642215b8f86f 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 0x0000642215b8dc4f swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0xa16c4f)
#22 0x0000642215ba5fda withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) FrontendTool.cpp:0:0
#23 0x0000642215b93aa9 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#24 0x0000642215b906ee swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0xa196ee)
#25 0x00006422158a8ba8 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x731ba8)
#26 0x0000719d55ac7d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#27 0x0000719d55ac7e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#28 0x00006422158a7a65 _start (/usr/bin/swift-frontend+0x730a65)
*** Signal 6: Backtracing from 0x719d55bbc9dd... done ***
*** Program crashed: Aborted at 0x0000719d55bbc9dd ***
Platform: x86_64 Linux (Ubuntu 22.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0 0x0000719d55bbc9dd <unknown> in libc.so.6
Registers:
rax 0x0000000000000000 0
rdx 0x0000000000000006 6
rcx 0x0000719d55bbc9dd 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00 H=·ðÿÿs·ÃH··#´··
rbx 0x0000000000000006 6
rsi 0x000000000000014e 334
rdi 0x000000000000014e 334
rbp 0x000000000000014e 334
rsp 0x000064222b11f068 6b 9b d2 1d 22 64 00 00 f0 f2 11 2b 22 64 00 00 k·Ò·"d··ðò·+"d··
r8 0x000064222b11f2f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r9 0x000064222b11f2f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r10 0x000064222b11f2f0 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 0x000064222b11f078 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ················
rip 0x0000719d55bbc9dd 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 (27 omitted):
0x0000719d55a9e000–0x0000719d55c5a401 6a6cb5a80fd5e5bb5bf3aeaa111add98e88843a5 libc.so.6 /usr/lib/x86_64-linux-gnu/libc.so.6
Backtrace took 0.01s
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-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SendableSyncFunc.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-function-composition.build/Debug-webassembly-wasm32/NominalFunctionTypes-t.build/Objects-normal/wasm32/SyncFunc.dia -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 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[173 / 216] NominalFunctionTypesCompositionOperators
error: Build failed
BUILD FAILURE 6.4 wasm