The Swift Package Index logo.Swift Package Index

Build Information

Failed to build ASN1Codable, reference main (9aa015), with Swift 6.4 for Wasm on 18 Sep 2026 20:20:47 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886769-2":/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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/PADL/ASN1Codable.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/PADL/ASN1Codable
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 9aa0155 Revert "workaround for Swift 6.3 build issue"
Cloned https://github.com/PADL/ASN1Codable.git
Revision (git rev-parse @):
9aa0155ad7294affcb6c807239afd75738d8938d
SUCCESS checkout https://github.com/PADL/ASN1Codable.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/PADL/ASN1Codable.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-2":/host -w "$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
warning: 'spi-builder-workspace': /host/spi-builder-workspace/Package.swift:14:15: warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
12 |     .iOS(.v12),
13 |     .tvOS(.v12),
14 |     .watchOS(.v4),
   |               `- warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
15 |   ],
16 |   products: [
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
Fetching https://github.com/PADL/ASN1Kit
[1/1049] Fetching asn1kit
Fetched https://github.com/PADL/ASN1Kit (0.47s)
Fetching https://github.com/PADL/Echo
[1/868] Fetching echo
Fetched https://github.com/PADL/Echo (0.51s)
Fetching https://github.com/mkrd/Swift-BigInt
[1/2014] Fetching swift-bigint
Fetched https://github.com/mkrd/Swift-BigInt (0.64s)
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/SwiftCommon/DataKit.git
Fetching https://github.com/Flight-School/AnyCodable
Fetching https://github.com/apple/swift-argument-parser
[1/1224] Fetching datakit
[1225/3099] Fetching datakit, swift-atomics
[1244/3881] Fetching datakit, swift-atomics, anycodable
Fetched https://github.com/Flight-School/AnyCodable (0.48s)
Fetched https://github.com/SwiftCommon/DataKit.git (0.48s)
[713/1875] Fetching swift-atomics
[1876/20793] Fetching swift-atomics, swift-argument-parser
Fetched https://github.com/apple/swift-atomics.git (0.83s)
Fetched https://github.com/apple/swift-argument-parser (0.83s)
Computing version for https://github.com/SwiftCommon/DataKit.git
Computed https://github.com/SwiftCommon/DataKit.git at 1.1.0 (1.03s)
Fetching https://github.com/Quick/Nimble
[1/19986] Fetching nimble
Fetched https://github.com/Quick/Nimble (1.12s)
Computing version for https://github.com/Flight-School/AnyCodable
Computed https://github.com/Flight-School/AnyCodable at 0.6.7 (1.31s)
Computing version for https://github.com/Quick/Nimble
Computed https://github.com/Quick/Nimble at 9.2.1 (0.18s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
[1/1257] Fetching cwlpreconditiontesting
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git (0.48s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (0.66s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/460] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git (0.41s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (0.61s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (0.16s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.8.2 (0.18s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.8.2
Creating working copy for https://github.com/PADL/Echo
Working copy of https://github.com/PADL/Echo resolved at fix-release-build (d7e29ee)
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 9.2.1
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
Creating working copy for https://github.com/mkrd/Swift-BigInt
Working copy of https://github.com/mkrd/Swift-BigInt resolved at master (e355084)
Creating working copy for https://github.com/SwiftCommon/DataKit.git
Working copy of https://github.com/SwiftCommon/DataKit.git resolved at 1.1.0
Creating working copy for https://github.com/Flight-School/AnyCodable
Working copy of https://github.com/Flight-School/AnyCodable resolved at 0.6.7
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
Creating working copy for https://github.com/PADL/ASN1Kit
Working copy of https://github.com/PADL/ASN1Kit resolved at lhoward/pr (94f981e)
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 423]
[Planning deferred tasks]
[64 / 153] ASN1Codable
[91 / 173] Atomics
[92 / 173] DataKit
[102 / 173] Atomics
[105 / 173] Atomics
[109 / 173] Atomics
[111 / 173] Atomics-product
[112 / 173] Echo
[113 / 173] Echo
[114 / 173] ASN1Kit
[118 / 181] AnyCodable
[121 / 181] AnyCodable
[122 / 181] AnyCodable
[137 / 184]
[140 / 202] ArgumentParser
[142 / 202] Echo
[145 / 203] Echo
<unknown>:0: error: fatal error encountered during compilation; please submit a bug report (https://swift.org/contributing/#reporting-bugs)
<unknown>:0: note: Functions with 'no-prototype' attribute must take varargs: getBuiltinInt1Metadata
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/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/AnonymousDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ClassDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ContextDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ContextDescriptorValues.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/EnumDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ExtensionDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/FieldDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/GenericContext.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ModuleDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/OpaqueDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ProtocolDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/StructDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/TypeContextDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Echo.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ClassMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/EnumMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/EnumValueWitnessTable.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ExistentialMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ExistentialMetatypeMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ForeignClassMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/FunctionMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/HeapGenericLocalVariableMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/HeapLocalVariableMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/Metadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetadataAccessFunction.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetadataRequest.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetadataValues.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetatypeMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ObjCClassWrapperMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/OpaqueMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/StructMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/TupleMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/TypeMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ValueWitnessTable.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/ConformanceDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/ExistentialContainer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/Functions.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/HeapObject.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/ImageInspection.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/KeyPaths.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/KnownMetadata.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/RuntimeValues.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/WitnessTable.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/FieldType.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/Misc.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeDirectPointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeIndirectPointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeIndirectablePointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeIndirectablePointerIntPair.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativePointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/SignedPointer.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/supplementaryOutputs-10 -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 -suppress-warnings -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/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include/module.modulemap -Xcc -fmodule-map-file=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-webassembly-wasm32/CEcho.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/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/Echo/Sources/CEcho/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -no-auto-bridging-header-chaining -module-name Echo -package-name echo -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/Echo_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/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KeyPaths.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KnownMetadata.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/RuntimeValues.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/WitnessTable.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/FieldType.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/Misc.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KeyPaths.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KnownMetadata.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/RuntimeValues.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/WitnessTable.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/FieldType.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/Misc.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/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KnownMetadata.o'.
 #0 0x00005d1b16c72d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/bin/swift-frontend+0x8bb1d98)
 #1 0x00005d1b16c70585 llvm::sys::RunSignalHandlers() (/usr/bin/swift-frontend+0x8baf585)
 #2 0x00005d1b16c73b41 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #3 0x00007e4639699520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007e46396ed9bc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969bc)
 #5 0x00007e4639699476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007e463967f7f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00005d1b0ee781ab swift::DiagnosticHelper::Implementation::diagnoseFatalError(char const*, bool) crtstuff.c:0:0
 #8 0x00005d1b16bbf466 llvm::report_fatal_error(llvm::Twine const&, bool) (/usr/bin/swift-frontend+0x8afe466)
 #9 0x00005d1b11e279ac (/usr/bin/swift-frontend+0x3d669ac)
#10 0x00005d1b168f03cc llvm::legacy::PassManagerImpl::run(llvm::Module&) (/usr/bin/swift-frontend+0x882f3cc)
#11 0x00005d1b0efd31d1 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 0x00005d1b0efd240b 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 0x00005d1b0eae176d generateCode(swift::CompilerInstance&, llvm::StringRef, llvm::Module*, llvm::GlobalVariable*) FrontendTool.cpp:0:0
#14 0x00005d1b0ead9961 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 0x00005d1b0ead7c4f swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) (/usr/bin/swift-frontend+0xa16c4f)
#16 0x00005d1b0eaeffda withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) FrontendTool.cpp:0:0
#17 0x00005d1b0eaddaa9 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*, llvm::ArrayRef<char const*>) FrontendTool.cpp:0:0
#18 0x00005d1b0eada6ee swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/usr/bin/swift-frontend+0xa196ee)
#19 0x00005d1b0e7f2ba8 swift::mainEntry(int, char const**) (/usr/bin/swift-frontend+0x731ba8)
#20 0x00007e4639680d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#21 0x00007e4639680e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#22 0x00005d1b0e7f1a65 _start (/usr/bin/swift-frontend+0x730a65)
*** Signal 6: Backtracing from 0x7e46397759dd... done ***
*** Program crashed: Aborted at 0x00007e46397759dd ***
Platform: x86_64 Linux (Ubuntu 22.04.5 LTS)
Thread 0 "swift-frontend" crashed:
0  0x00007e46397759dd <unknown> in libc.so.6
Registers:
rax 0x0000000000000000  0
rdx 0x0000000000000006  6
rcx 0x00007e46397759dd  48 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 b4 0f 00  H=·ðÿÿs·ÃH··#´··
rbx 0x0000000000000006  6
rsi 0x0000000000000612  1554
rdi 0x0000000000000612  1554
rbp 0x0000000000000612  1554
rsp 0x00005d1b4a71d068  6b 3b c7 16 1b 5d 00 00 f0 d2 71 4a 1b 5d 00 00  k;Ç··]··ðÒqJ·]··
 r8 0x00005d1b4a71d2f0  06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00  ········úÿÿÿ····
 r9 0x00005d1b4a71d2f0  06 00 00 00 00 00 00 00 fa ff ff ff 00 00 00 00  ········úÿÿÿ····
r10 0x00005d1b4a71d2f0  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 0x00005d1b4a71d078  01 03 01 00 00 00 00 00 c9 7c 5e 01 00 00 00 00  ········É|^·····
rip 0x00007e46397759dd  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):
0x00007e4639657000–0x00007e4639813401 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/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/AnonymousDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ClassDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ContextDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ContextDescriptorValues.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/EnumDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ExtensionDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/FieldDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/GenericContext.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ModuleDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/OpaqueDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/ProtocolDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/StructDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/ContextDescriptor/TypeContextDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Echo.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ClassMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/EnumMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/EnumValueWitnessTable.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ExistentialMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ExistentialMetatypeMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ForeignClassMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/FunctionMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/HeapGenericLocalVariableMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/HeapLocalVariableMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/Metadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetadataAccessFunction.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetadataRequest.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetadataValues.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/MetatypeMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ObjCClassWrapperMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/OpaqueMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/StructMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/TupleMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/TypeMetadata.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Metadata/ValueWitnessTable.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/ConformanceDescriptor.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/ExistentialContainer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/Functions.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/HeapObject.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/ImageInspection.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/KeyPaths.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/KnownMetadata.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/RuntimeValues.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Runtime/WitnessTable.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/FieldType.swift -primary-file /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/Misc.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeDirectPointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeIndirectPointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeIndirectablePointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativeIndirectablePointerIntPair.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/RelativePointer.swift /host/spi-builder-workspace/.build/checkouts/Echo/Sources/Echo/Utils/SignedPointer.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/supplementaryOutputs-10 -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 -suppress-warnings -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/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-webassembly-wasm32/CEcho.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/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/Echo/Sources/CEcho/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Echo -package-name echo -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/Echo_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/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KeyPaths.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KnownMetadata.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/RuntimeValues.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/WitnessTable.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm3[149 / 204] Echo
2/FieldType.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/Misc.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KeyPaths.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/KnownMetadata.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/RuntimeValues.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/WitnessTable.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/FieldType.o -index-unit-output-path /Echo.build/Debug-webassembly-wasm32/Echo-t.build/Objects-normal/wasm32/Misc.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm