Swift Package IndexBuild Information
Failed to build RoundtripGenerator, reference 0.2.0 (157666), with Swift 6.4 for Wasm on 29 Sep 2026 15:23:42 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
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/modern-swift-dev/roundtrip-generator.git
Reference: 0.2.0
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/modern-swift-dev/roundtrip-generator
* tag 0.2.0 -> FETCH_HEAD
HEAD is now at 1576663 Add backend-only operation audiences and generated HTTP boundary hooks
Cloned https://github.com/modern-swift-dev/roundtrip-generator.git
Revision (git rev-parse @):
1576663d05a5b75779d1d8323f8d0cdbf300c471
SUCCESS checkout https://github.com/modern-swift-dev/roundtrip-generator.git at 0.2.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/modern-swift-dev/roundtrip-generator.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$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/swiftlang/swift-docc-plugin
Fetching https://github.com/swiftlang/swift-syntax.git
[1/2345] Fetching swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-plugin (0.63s)
[1/80082] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax.git (3.59s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Computed https://github.com/swiftlang/swift-docc-plugin at 1.5.0 (4.91s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3832] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (1.08s)
Computing version for https://github.com/swiftlang/swift-syntax.git
Computed https://github.com/swiftlang/swift-syntax.git at 603.0.2 (1.39s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.21s)
Creating working copy for https://github.com/swiftlang/swift-syntax.git
Working copy of https://github.com/swiftlang/swift-syntax.git resolved at 603.0.2
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.5.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 969]
[Planning deferred tasks]
[148 / 325] SwiftSyntax601
[185 / 325] GeneratorBuilder
[188 / 325] GeneratorBuilder
[196 / 327] SwiftSyntax600
[204 / 330] SwiftSyntax602
[209 / 331] SwiftSyntax509
[215 / 332]
[217 / 341] SwiftSyntax
[218 / 341] SwiftSyntax
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/GeneratorBuilder/Node.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile Node.swift
/host/spi-builder-workspace/Sources/GeneratorBuilder/Node.swift:22:46: [1;31merror: [1;39m'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported[0;0m
[0;36m20 |[0;0m func write(to file: URL) throws {
[0;36m21 |[0;0m let data = toString().data(using: .utf8)
[0;36m22 |[0;0m try data?.write(to: file, options: [.[4;39matomic[0;0m])
[0;36m|[0;0m `- [1;31merror: [1;39m'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported[0;0m
[0;36m23 |[0;0m }
[0;36m24 |[0;0m
FoundationEssentials.Data.WritingOptions.atomic:4:23: [1;39mnote: [1;39m'atomic' has been explicitly marked unavailable here[0;0m
[0;36m2 |[0;0m struct WritingOptions {
[0;36m3 |[0;0m @available(*, unavailable, message: "atomic writing is unavailable in WASI because temporary files are not supported")
[0;36m4 |[0;0m public static let atomic: Data.WritingOptions }
[0;36m|[0;0m `- [1;39mnote: [1;39m'atomic' has been explicitly marked unavailable here[0;0m
[0;36m5 |[0;0m }
[0;36m6 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/GeneratorBuilder/Extensions/FileManagerExtensions.swift /host/spi-builder-workspace/Sources/GeneratorBuilder/Extensions/FixedWidthIntegerExtensions.swift /host/spi-builder-workspace/Sources/GeneratorBuilder/Extensions/SequenceExtensions.swift /host/spi-builder-workspace/Sources/GeneratorBuilder/Extensions/StringExtensions.swift /host/spi-builder-workspace/Sources/GeneratorBuilder/Node+Predefined.swift -primary-file /host/spi-builder-workspace/Sources/GeneratorBuilder/Node.swift /host/spi-builder-workspace/Sources/GeneratorBuilder/NodeBuilder.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/Node.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/Node.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/Node.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/Node.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 StrictConcurrency -enable-upcoming-feature MemberImportVisibility -enable-upcoming-feature ExistentialAny -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/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name GeneratorBuilder -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/GeneratorBuilder_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/RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/Node.o -index-unit-output-path /RoundtripGenerator.build/Debug-webassembly-wasm32/GeneratorBuilder-t.build/Objects-normal/wasm32/Node.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm