FindFont – Build Information – Swift Package Index

Build Information

Failed to build FindFont, reference main (b39389), with Swift 6.4 for Wasm on 22 Sep 2026 08:51:10 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886769-1":/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/tomasf/FindFont.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/tomasf/FindFont
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at b393897 Update README.md
Cloned https://github.com/tomasf/FindFont.git
Revision (git rev-parse @):
b393897d30f7baba2b3daa58ee3f87fac84b3182
SUCCESS checkout https://github.com/tomasf/FindFont.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/tomasf/FindFont.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-1":/host -w "$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': you may be able to install fontconfig using your system-packager:
    apt-get install libfontconfig1-dev
Building for debugging...
[Planning deferred tasks]
[23 / 31] FindFont
[28 / 31] FindFont
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/FindFont/FindFont.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile FindFont.swift
/host/spi-builder-workspace/Sources/FindFont/FindFont.swift:30:5: [1;31merror: [1;39mmissing return in static method expected to return 'FontRepository.Match?'[0;0m
[0;36m28 |[0;0m         try matchForLinuxFont(family: name, style: style)
[0;36m29 |[0;0m #endif
[0;36m30 |[0;0m     }
   [0;36m|[0;0m     `- [1;31merror: [1;39mmissing return in static method expected to return 'FontRepository.Match?'[0;0m
[0;36m31 |[0;0m
[0;36m32 |[0;0m     /// Errors that can occur during font lookup.
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/FindFont/FindFont+Apple.swift /host/spi-builder-workspace/Sources/FindFont/FindFont+Linux.swift /host/spi-builder-workspace/Sources/FindFont/FindFont+Windows.swift -primary-file /host/spi-builder-workspace/Sources/FindFont/FindFont.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont.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 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/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name FindFont -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont_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/FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont.o -index-unit-output-path /FindFont.build/Debug-webassembly-wasm32/FindFont-t.build/Objects-normal/wasm32/FindFont.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm