Swift Package IndexBuild Information
Failed to build SwiftAprilTag, reference main (038cb9), with Swift 6.4 for Wasm on 25 Sep 2026 16:21:29 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:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/keyqcloud/SwiftAprilTag.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/keyqcloud/SwiftAprilTag
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 038cb90 test: per-family fixtures + end-to-end coverage for the wrapper plumbing
Cloned https://github.com/keyqcloud/SwiftAprilTag.git
Revision (git rev-parse @):
038cb9026711ddba05b71c16b32eb364bcfa6ef9
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/keyqcloud/SwiftAprilTag.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/keyqcloud/SwiftAprilTag.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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
Building for debugging...
[Pre-planning 1 / 125]
[1 / 65]
[44 / 65] CAprilTag
[56 / 65] CAprilTag
[65 / 75] SwiftAprilTag
[69 / 75] SwiftAprilTag
[72 / 75] SwiftAprilTag
<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: tagStandard52h13_create[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/SwiftAprilTag/CameraIntrinsics+AVFoundation.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/CameraIntrinsics.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detection+CGPath.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detection+Pose.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detection.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector+CGImage.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector+CVPixelBuffer.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector+UIImage.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector.swift -primary-file /host/spi-builder-workspace/Sources/SwiftAprilTag/TagFamily.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/TagPose.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.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 5 -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 -fmodule-map-file=/host/spi-builder-workspace/Sources/CAprilTag/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/CAprilTag/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -no-auto-bridging-header-chaining -module-name SwiftAprilTag -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/SwiftAprilTag_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/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.o -index-unit-output-path /SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.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 effective version 5.10
3. Running pass 'Add prototypes to prototypes-less functions' on module '/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.o'.
#0 0x0000559005dc2d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x8bb1d98)
#1 0x0000559005dc0585 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x8baf585)
#2 0x0000559005dc3b41 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x00007151efdba520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007151efe0e9bc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969bc)
#5 0x00007151efdba476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007151efda07f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000558ffdfc81ab swift::DiagnosticHelper::Implementation::diagnoseFatalError(char const*, bool) crtstuff.c:0:0
#8 0x0000559005d0f466 llvm::report_fatal_error(llvm::Twine const&, bool) (/usr/bin/swift-frontend+0x8afe466)
#9 0x0000559000f779ac (/usr/bin/swift-frontend+0x3d669ac)
#10 0x0000559005a403cc llvm::legacy::PassManagerImpl::run(llvm::Module&) (/usr/bin/swift-frontend+0x882f3cc)
#11 0x0000558ffe1231d1 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+0xf121d1)
#12 0x0000558ffe12240b 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+0xf1140b)
#13 0x0000558ffdc3176d generateCode(swift::CompilerInstance&, llvm::StringRef, llvm::Module*, llvm::GlobalVariable*) FrontendTool.cpp:0:0
#14 0x0000558ffdc29961 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 0x0000558ffdc27c4f swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0xa16c4f)
#16 0x0000558ffdc3ffda withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) FrontendTool.cpp:0:0
#17 0x0000558ffdc2daa9 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#18 0x0000558ffdc2a6ee swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0xa196ee)
#19 0x0000558ffd942ba8 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x731ba8)
#20 0x00007151efda1d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#21 0x00007151efda1e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#22 0x0000558ffd941a65 _start (/usr/bin/swift-frontend+0x730a65)
*** Signal 6: Backtracing from 0x7151efe969dd... done ***
*** Program crashed: Aborted at 0x00007151efe969dd ***
Platform: x86_64 Linux (Ubuntu 22.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0 0x00007151efe969dd <unknown> in libc.so.6
Registers:
rax 0x0000000000000000 0
rdx 0x0000000000000006 6
rcx 0x00007151efe969dd 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00 H=·ðÿÿs·ÃH··#´··
rbx 0x0000000000000006 6
rsi 0x0000000000000087 135
rdi 0x0000000000000087 135
rbp 0x0000000000000087 135
rsp 0x0000559042589068 6b 3b dc 05 90 55 00 00 f0 92 58 42 90 55 00 00 k;Ü··U··ð·XB·U··
r8 0x00005590425892f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r9 0x00005590425892f0 06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00 ········úÿÿÿ····
r10 0x00005590425892f0 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 0x0000559042589078 01 03 01 00 00 00 00 00 4a 43 ec 00 00 00 00 00 ········JCì·····
rip 0x00007151efe969dd 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):
0x00007151efd78000–0x00007151eff34401 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/SwiftAprilTag/CameraIntrinsics+AVFoundation.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/CameraIntrinsics.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detection+CGPath.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detection+Pose.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detection.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector+CGImage.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector+CVPixelBuffer.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector+UIImage.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/Detector.swift -primary-file /host/spi-builder-workspace/Sources/SwiftAprilTag/TagFamily.swift /host/spi-builder-workspace/Sources/SwiftAprilTag/TagPose.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.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 5 -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 -fmodule-map-file\=/host/spi-builder-workspace/Sources/CAprilTag/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/CAprilTag/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftAprilTag -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/SwiftAprilTag_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/SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.o -index-unit-output-path /SwiftAprilTag.build/Debug-webassembly-wasm32/SwiftAprilTag-t.build/Objects-normal/wasm32/TagFamily.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm