Wasmtime – Build Information – Swift Package Index

Build Information

Failed to build Wasmtime, reference 48.0.5 (323a74), with Swift 6.4 for Wasm on 15 Oct 2026 20:19:37 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/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: 48.0.5
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
 * tag               48.0.5     -> FETCH_HEAD
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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 48.0.5
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/OpenCow42/swift-wasmtime.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$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...
[Planning deferred tasks]
[29 / 38] CWasmtime
[32 / 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 0x0000647e01fd2758 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x7484758)
 #1 0x0000647e01fd0235 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x7482235)
 #2 0x0000647e01fd34c1 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #3 0x000070d2652f9330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
 #4 0x000070d265352c0c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9ec0c)
 #5 0x000070d2652f927e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
 #6 0x000070d2652dc8ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
 #7 0x0000647dfb7cfebb (/usr/bin/swift-frontend+0xc81ebb)
 #8 0x0000647e01f2cbd6 llvm::report_fatal_error(llvm::Twine const&, bool) (/usr/bin/swift-frontend+0x73debd6)
 #9 0x0000647dfdfa126c (anonymous namespace)::WebAssemblyAddMissingPrototypes::runOnModule(llvm::Module&) WebAssemblyAddMissingPrototypes.cpp:0:0
#10 0x0000647e01cb3f4b llvm::legacy::PassManagerImpl::run(llvm::Module&) (/usr/bin/swift-frontend+0x7165f4b)
#11 0x0000647dfb934609 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 0x0000647dfb933e32 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 0x0000647dfb4e7ceb generateCode(swift::CompilerInstance&, llvm::StringRef, llvm::Module*, llvm::GlobalVariable*) FrontendTool.cpp:0:0
#14 0x0000647dfb4e099c 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 0x0000647dfb4ded73 swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0x990d73)
#16 0x0000647dfb4e4089 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#17 0x0000647dfb4e162f swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0x99362f)
#18 0x0000647dfb23a568 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x6ec568)
#19 0x000070d2652de1ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
#20 0x000070d2652de28b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
#21 0x0000647dfb239665 _start (/usr/bin/swift-frontend+0x6eb665)
*** Signal 6: Backtracing from 0x70d2653db52d... done ***
*** Program crashed: Aborted at 0x000070d2653db52d ***
Platform: x86_64 Linux (Ubuntu 24.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0  0x000070d2653db52d <unknown> in libc.so.6
Registers:
rax 0x0000000000000000  0
rdx 0x0000000000000006  6
rcx 0x000070d2653db52d  48 3d 01 f0 ff ff 73 01 c3 48 8b 0d bb c8 0d 00  H=·ðÿÿs·ÃH··»È··
rbx 0x0000000000000006  6
rsi 0x0000000000000078  120
rdi 0x0000000000000078  120
rbp 0x0000000000000078  120
rsp 0x0000647e3a2e44e8  eb 34 fd 01 7e 64 00 00 70 47 2e 3a 7e 64 00 00  ë4ý·~d··pG.:~d··
 r8 0x0000647e3a2e4770  06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00  ········úÿÿÿ····
 r9 0x0000647e3a2e4770  06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00  ········úÿÿÿ····
r10 0x0000647e3a2e4770  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 0x0000647e3a2e44f8  01 03 01 00 00 00 00 00 ea e3 d4 00 00 00 00 00  ········êãÔ·····
rip 0x000070d2653db52d  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):
0x000070d2652b4000–0x000070d265464039 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