Swift Package IndexBuild Information
Failed to build SemiSingleton, reference main (dc4e36), with Swift 6.4 for Wasm on 21 Sep 2026 13:34:17 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/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.
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Checkout
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Clone URL: https://github.com/Frizlab/SemiSingleton.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/Frizlab/SemiSingleton
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at dc4e36b Dummy code formatting change
Cloned https://github.com/Frizlab/SemiSingleton.git
Revision (git rev-parse @):
dc4e36b23ad96043f05d893cb72245cdf2f74076
SUCCESS checkout https://github.com/Frizlab/SemiSingleton.git at main
========================================
Build
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Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/Frizlab/SemiSingleton.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$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/Frizlab/SafeGlobal.git
Fetching https://github.com/Frizlab/GlobalConfModule.git
Fetching https://github.com/Frizlab/RecursiveSyncDispatch.git
Fetching https://github.com/apple/swift-log.git
[1/8096] Fetching swift-log
[2/8290] Fetching swift-log, safeglobal
Fetched https://github.com/Frizlab/SafeGlobal.git (0.42s)
[324/8096] Fetching swift-log
[568/8773] Fetching swift-log, globalconfmodule
[1669/8947] Fetching swift-log, globalconfmodule, recursivesyncdispatch
Fetched https://github.com/Frizlab/RecursiveSyncDispatch.git (0.44s)
[3120/8773] Fetching swift-log, globalconfmodule
Fetched https://github.com/Frizlab/GlobalConfModule.git (0.52s)
Fetched https://github.com/apple/swift-log.git (0.52s)
Computing version for https://github.com/Frizlab/RecursiveSyncDispatch.git
Computed https://github.com/Frizlab/RecursiveSyncDispatch.git at 1.0.1 (1.57s)
Computing version for https://github.com/Frizlab/SafeGlobal.git
Computed https://github.com/Frizlab/SafeGlobal.git at 0.3.5 (0.16s)
Fetching https://github.com/swiftlang/swift-syntax.git
[1/79999] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax.git (2.93s)
Computing version for https://github.com/Frizlab/GlobalConfModule.git
Computed https://github.com/Frizlab/GlobalConfModule.git at 0.4.5 (3.12s)
Fetching https://github.com/apple/swift-service-context.git
[1/1364] Fetching swift-service-context
Fetched https://github.com/apple/swift-service-context.git (1.15s)
Computing version for https://github.com/apple/swift-service-context.git
Computed https://github.com/apple/swift-service-context.git at 1.3.0 (1.33s)
Computing version for https://github.com/swiftlang/swift-syntax.git
Computed https://github.com/swiftlang/swift-syntax.git at 603.0.2 (0.30s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.18s)
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/Frizlab/GlobalConfModule.git
Working copy of https://github.com/Frizlab/GlobalConfModule.git resolved at 0.4.5
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
Creating working copy for https://github.com/Frizlab/SafeGlobal.git
Working copy of https://github.com/Frizlab/SafeGlobal.git resolved at 0.3.5
Creating working copy for https://github.com/Frizlab/RecursiveSyncDispatch.git
Working copy of https://github.com/Frizlab/RecursiveSyncDispatch.git resolved at 1.0.1
Creating working copy for https://github.com/apple/swift-service-context.git
Working copy of https://github.com/apple/swift-service-context.git resolved at 1.3.0
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 769]
[Planning deferred tasks]
[168 / 347] ServiceContextModule
[204 / 347] ServiceContextModule
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line: cd /host
/host/spi-builder-workspace/.build/checkouts/RecursiveSyncDispatch/Sources/RecursiveSyncDispatch/RecursiveSyncDispatch.swift:16:8: [1;31merror: [1;39mno such module 'Dispatch'[0;0m
[0;36m14 |[0;0m limitations under the License. */
[0;36m15 |[0;0m
[0;36m16 |[0;0m import Dispatch
[0;36m|[0;0m `- [1;31merror: [1;39mno such module 'Dispatch'[0;0m
[0;36m17 |[0;0m import Foundation
[0;36m18 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/checkouts/RecursiveSyncDispatch/Sources/RecursiveSyncDispatch/RecursiveSyncDispatch.swift -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 -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/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name RecursiveSyncDispatch -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/RecursiveSyncDispatch_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 -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/Modules/RecursiveSyncDispatch.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/Modules/RecursiveSyncDispatch.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/RecursiveSyncDispatch-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/RecursiveSyncDispatch-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/RecursiveSyncDispatch-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/RecursiveSyncDispatch.build/Debug-webassembly-wasm32/RecursiveSyncDispatch-t.build/Objects-normal/wasm32/Modules/RecursiveSyncDispatch.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm