Swift Package IndexBuild Information
Failed to build swift-function-composition, reference main (7ce362), with Swift 6.4 for Wasm on 27 Sep 2026 18:42:27 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/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: 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/capturecontext/swift-function-composition
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 7ce3628 ci: update shared actions
Cloned https://github.com/capturecontext/swift-function-composition.git
Revision (git rev-parse @):
7ce3628c42a02b2bfe9fe04406dfc4e83b6ea790
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/capturecontext/swift-function-composition.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/capturecontext/swift-function-composition.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$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 (0.54s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras.git
Computed https://github.com/pointfreeco/swift-concurrency-extras.git at 1.4.1 (0.74s)
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 583 / 1126]
[81 / 168] FunctionComposition
[91 / 191] _Currying
[114 / 191] ConcurrencyExtras
[125 / 191] Either
[137 / 193] FunctionCompositionOperators
[141 / 194] ConcurrencyExtras-product
[144 / 194]
[149 / 206] _Currying
[156 / 206] NominalFunctionTypes
[158 / 206] NominalFunctionTypes
[170 / 219] NominalFunctionTypesCompositionMethods
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 0x00005634dfe18d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x8bb1d98)
#1 0x00005634dfe16585 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x8baf585)
#2 0x00005634dfe19b41 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x000077a549416520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000077a54946a9bc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969bc)
#5 0x000077a549416476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000077a5493fc7f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000077a5493fc71b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000077a54940de96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00005634d84a0393 (/usr/bin/swift-frontend+0x1239393)
#10 0x00005634d8485fcc (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) IRGenSIL.cpp:0:0
#11 0x00005634d8480bfc (anonymous namespace)::IRGenSILFunction::emitSILFunction() IRGenSIL.cpp:0:0
#12 0x00005634d847daf3 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) (/usr/bin/swift-frontend+0x1216af3)
#13 0x00005634d8310e12 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 0x00005634d817c0cc swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const (/usr/bin/swift-frontend+0xf150cc)
#15 0x00005634d81f20e2 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 0x00005634d81f1fb9 swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) crtstuff.c:0:0
#17 0x00005634d79c203c 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 0x00005634d817ff3d 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 0x00005634d7c86e15 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 0x00005634d7c7f86f 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 0x00005634d7c7dc4f swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0xa16c4f)
#22 0x00005634d7c95fda withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) FrontendTool.cpp:0:0
#23 0x00005634d7c83aa9 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#24 0x00005634d7c806ee swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0xa196ee)
#25 0x00005634d7998ba8 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x731ba8)
#26 0x000077a5493fdd90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#27 0x000077a5493fde40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#28 0x00005634d7997a65 _start (/usr/bin/swift-frontend+0x730a65)
*** Signal 6: Backtracing from 0x77a5494f29dd... done ***
*** Program crashed: Aborted at 0x000077a5494f29dd ***
Platform: x86_64 Linux (Ubuntu 22.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0 0x000077a5494f29dd <unknown> in libc.so.6
Registers:
rax 0x0000000000000000 0
rdx 0x0000000000000006 6
rcx 0x000077a5494f29dd 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00 H=·ðÿÿs·ÃH··#´··
rbx 0x0000000000000006 6
rsi 0x0000000000000140 320
rdi 0x0000000000000140 320
rbp 0x0000000000000140 320
rsp 0x00005634f26c6068 6b 9b e1 df 34 56 00 00 f0 62 6c f2 34 56 00 00 k·áß4V··ðblò4V··
r8 0x00005634f26c62f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r9 0x00005634f26c62f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r10 0x00005634f26c62f0 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 0x00005634f26c6078 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ················
rip 0x000077a5494f29dd 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):
0x000077a5493d4000–0x000077a549590401 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-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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error: Build failed
BUILD FAILURE 6.4 wasm