Wasmtime – Build Information – Swift Package Index

Build Information

Failed to build Wasmtime, reference main (323a74), with Swift 6.4 for Wasm on 15 Oct 2026 20:19:31 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-6.4.0-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/OpenCow42/swift-wasmtime.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/OpenCow42/swift-wasmtime
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 323a748 Merge pull request #22 from OpenCow42/automation/wasmtime-48.0.5
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Cloned https://github.com/OpenCow42/swift-wasmtime.git
Revision (git rev-parse @):
323a7481f0509161ff19e9d202bf848c6f187794
SUCCESS checkout https://github.com/OpenCow42/swift-wasmtime.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/OpenCow42/swift-wasmtime.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$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-6.4.0-RELEASE_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:7a2e5502d3bb6640f9b2bbb1dadf9967024364ce9ed0ed0bd80cf1b699d193fd
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Pre-planning 1 / 97]
[19 / 29] Wasmtime
[29 / 38] CWasmtime
[32 / 38] Wasmtime
[35 / 38] Wasmtime
<unknown>:0: [1;31merror: [1;39mfatal error encountered during compilation; please submit a bug report (https://swift.org/contributing/#reporting-bugs)[0;0m
<unknown>:0: [1;39mnote: [1;39mFunctions with 'no-prototype' attribute must take varargs: wasi_config_new[0;0m
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/Wasmtime/Configuration.swift /host/spi-builder-workspace/Sources/Wasmtime/Diagnostics.swift /host/spi-builder-workspace/Sources/Wasmtime/ExternMetadata.swift /host/spi-builder-workspace/Sources/Wasmtime/Functions.swift /host/spi-builder-workspace/Sources/Wasmtime/GlobalsTables.swift /host/spi-builder-workspace/Sources/Wasmtime/Instances.swift /host/spi-builder-workspace/Sources/Wasmtime/Linker.swift /host/spi-builder-workspace/Sources/Wasmtime/Memory.swift /host/spi-builder-workspace/Sources/Wasmtime/ModulesComponents.swift /host/spi-builder-workspace/Sources/Wasmtime/Runtime.swift /host/spi-builder-workspace/Sources/Wasmtime/RuntimeLibrary.swift /host/spi-builder-workspace/Sources/Wasmtime/Store.swift /host/spi-builder-workspace/Sources/Wasmtime/Support.swift /host/spi-builder-workspace/Sources/Wasmtime/Values.swift -primary-file /host/spi-builder-workspace/Sources/Wasmtime/Wasi.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.dia -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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 StrictConcurrency -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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -fmodule-map-file=/host/spi-builder-workspace/Sources/CWasmtime/include/module.modulemap -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/Sources/CWasmtime/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -no-auto-bridging-header-chaining -module-name Wasmtime -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasmtime_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/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.o -index-unit-output-path /Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
1.	Swift version 6.4 (swift-6.4-RELEASE)
2.	Compiling with the current language version
3.	Running pass 'Add prototypes to prototypes-less functions' on module '/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.o'.
 #0 0x0000557d0fbf1758 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x7484758)
 #1 0x0000557d0fbef235 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x7482235)
 #2 0x0000557d0fbf24c1 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #3 0x0000709b47a91330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
 #4 0x0000709b47aeac0c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9ec0c)
 #5 0x0000709b47a9127e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
 #6 0x0000709b47a748ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
 #7 0x0000557d093eeebb (/usr/bin/swift-frontend+0xc81ebb)
 #8 0x0000557d0fb4bbd6 llvm::report_fatal_error(llvm::Twine const&, bool) (/usr/bin/swift-frontend+0x73debd6)
 #9 0x0000557d0bbc026c (anonymous namespace)::WebAssemblyAddMissingPrototypes::runOnModule(llvm::Module&) WebAssemblyAddMissingPrototypes.cpp:0:0
#10 0x0000557d0f8d2f4b llvm::legacy::PassManagerImpl::run(llvm::Module&) (/usr/bin/swift-frontend+0x7165f4b)
#11 0x0000557d09553609 swift::compileAndWriteLLVM(llvm::Module*, llvm::TargetMachine*, swift::IRGenOptions const&, swift::UnifiedStatsReporter*, swift::DiagnosticEngine&, llvm::raw_pwrite_stream&, llvm::sys::SmartMutex<false>*, llvm::raw_pwrite_stream*) (/usr/bin/swift-frontend+0xde6609)
#12 0x0000557d09552e32 swift::performLLVM(swift::IRGenOptions const&, swift::DiagnosticEngine&, llvm::sys::SmartMutex<false>*, llvm::GlobalVariable*, llvm::Module*, llvm::TargetMachine*, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, llvm::StringRef, llvm::vfs::OutputBackend&, swift::UnifiedStatsReporter*) (/usr/bin/swift-frontend+0xde5e32)
#13 0x0000557d09106ceb generateCode(swift::CompilerInstance&, llvm::StringRef, llvm::Module*, llvm::GlobalVariable*) FrontendTool.cpp:0:0
#14 0x0000557d090ff99c 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
#15 0x0000557d090fdd73 swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0x990d73)
#16 0x0000557d09103089 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#17 0x0000557d0910062f swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0x99362f)
#18 0x0000557d08e59568 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x6ec568)
#19 0x0000709b47a761ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
#20 0x0000709b47a7628b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
#21 0x0000557d08e58665 _start (/usr/bin/swift-frontend+0x6eb665)
*** Signal 6: Backtracing from 0x709b47b7352d... done ***
*** Program crashed: Aborted at 0x0000709b47b7352d ***
Platform: x86_64 Linux (Ubuntu 24.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0  0x0000709b47b7352d <unknown> in libc.so.6
Registers:
rax 0x0000000000000000  0
rdx 0x0000000000000006  6
rcx 0x0000709b47b7352d  48 3d 01 f0 ff ff 73 01 c3 48 8b 0d bb c8 0d 00  H=·ðÿÿs·ÃH··»È··
rbx 0x0000000000000006  6
rsi 0x000000000000008f  143
rdi 0x000000000000008f  143
rbp 0x000000000000008f  143
rsp 0x0000557d1c0b84e8  eb 24 bf 0f 7d 55 00 00 70 87 0b 1c 7d 55 00 00  ë$¿·}U··p···}U··
 r8 0x0000557d1c0b8770  06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00  ········úÿÿÿ····
 r9 0x0000557d1c0b8770  06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00  ········úÿÿÿ····
r10 0x0000557d1c0b8770  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 0x0000557d1c0b84f8  01 03 01 00 00 00 00 00 f1 15 37 01 00 00 00 00  ········ñ·7·····
rip 0x0000709b47b7352d  48 3d 01 f0 ff ff 73 01 c3 48 8b 0d bb c8 0d 00  H=·ðÿÿs·ÃH··»È··
rflags 0x0000000000000246  ZF PF
cs 0x0033  fs 0x0000  gs 0x0000
Images (27 omitted):
0x0000709b47a4c000–0x0000709b47bfc039 a4a7992a8e66555c8141ab2a08a8465ff6e0ea65 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/Wasmtime/Configuration.swift /host/spi-builder-workspace/Sources/Wasmtime/Diagnostics.swift /host/spi-builder-workspace/Sources/Wasmtime/ExternMetadata.swift /host/spi-builder-workspace/Sources/Wasmtime/Functions.swift /host/spi-builder-workspace/Sources/Wasmtime/GlobalsTables.swift /host/spi-builder-workspace/Sources/Wasmtime/Instances.swift /host/spi-builder-workspace/Sources/Wasmtime/Linker.swift /host/spi-builder-workspace/Sources/Wasmtime/Memory.swift /host/spi-builder-workspace/Sources/Wasmtime/ModulesComponents.swift /host/spi-builder-workspace/Sources/Wasmtime/Runtime.swift /host/spi-builder-workspace/Sources/Wasmtime/RuntimeLibrary.swift /host/spi-builder-workspace/Sources/Wasmtime/Store.swift /host/spi-builder-workspace/Sources/Wasmtime/Support.swift /host/spi-builder-workspace/Sources/Wasmtime/Values.swift -primary-file /host/spi-builder-workspace/Sources/Wasmtime/Wasi.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.dia -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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 StrictConcurrency -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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -fmodule-map-file\=/host/spi-builder-workspace/Sources/CWasmtime/include/module.modulemap -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/Sources/CWasmtime/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Wasmtime -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasmtime_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/Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.o -index-unit-output-path /Wasmtime.build/Debug-webassembly-wasm32/Wasmtime-t.build/Objects-normal/wasm32/Wasi.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm