WebFontKit – Build Information – Swift Package Index

Build Information

Failed to build WebFontKit, reference v2.0.0 (cf5953), with Swift 6.4 for Android on 23 Oct 2026 05:43:38 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886768-0":/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:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ItzNotABug/WebFontKit.git
Reference: v2.0.0
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/ItzNotABug/WebFontKit
 * tag               v2.0.0     -> FETCH_HEAD
HEAD is now at cf59539 Merge pull request #19 from ItzNotABug/release-2.0
Cloned https://github.com/ItzNotABug/WebFontKit.git
Revision (git rev-parse @):
cf595399514a80ef042319614e5565e49caaa85f
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ItzNotABug/WebFontKit.git at v2.0.0
========================================
Build
========================================
Selected platform:         android
Swift version:             6.4
Building package at path:  $PWD
https://github.com/ItzNotABug/WebFontKit.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886768-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:d9a84d7647394b4473e054b8d8a8f0e0b43300080afc6972ec459a3a608366e4
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
Building for debugging...
[Pre-planning 1 / 153]
[Starting]
error: SwiftCompile normal aarch64 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/WebFontKit/API/WebFonts.swift:2:8: [1;31merror: [1;39mno such module 'OSLog'[0;0m
  [0;36m1 |[0;0m import Foundation
  [0;36m2 |[0;0m import OSLog
    [0;36m|[0;0m        `- [1;31merror: [1;39mno such module 'OSLog'[0;0m
  [0;36m3 |[0;0m
  [0;36m4 |[0;0m /// Downloads fonts by family name, stores them, and registers them with CoreText,
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.0/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/DerivedSources/resource_bundle_accessor.swift /host/spi-builder-workspace/Sources/WebFontKit/API/DownloadedFont.swift /host/spi-builder-workspace/Sources/WebFontKit/API/FontLoadResults.swift /host/spi-builder-workspace/Sources/WebFontKit/API/FontStyle.swift /host/spi-builder-workspace/Sources/WebFontKit/API/FontStyleResults.swift /host/spi-builder-workspace/Sources/WebFontKit/API/WebFontError.swift /host/spi-builder-workspace/Sources/WebFontKit/API/WebFontEvent.swift /host/spi-builder-workspace/Sources/WebFontKit/API/WebFonts.swift /host/spi-builder-workspace/Sources/WebFontKit/FontSources/DefaultFontSource.swift /host/spi-builder-workspace/Sources/WebFontKit/FontSources/FontSource.swift /host/spi-builder-workspace/Sources/WebFontKit/FontSources/HostedFontSource.swift /host/spi-builder-workspace/Sources/WebFontKit/Loading/EventHub.swift /host/spi-builder-workspace/Sources/WebFontKit/Loading/FaceFetcher.swift /host/spi-builder-workspace/Sources/WebFontKit/Loading/Loader.swift /host/spi-builder-workspace/Sources/WebFontKit/Loading/LoaderState.swift /host/spi-builder-workspace/Sources/WebFontKit/Loading/StoreLookup.swift /host/spi-builder-workspace/Sources/WebFontKit/Network/CSS2.swift /host/spi-builder-workspace/Sources/WebFontKit/Network/Downloader.swift /host/spi-builder-workspace/Sources/WebFontKit/Network/ErrorMapping.swift /host/spi-builder-workspace/Sources/WebFontKit/Network/GoogleFontsCatalog.swift /host/spi-builder-workspace/Sources/WebFontKit/Network/LibraryVersion.swift /host/spi-builder-workspace/Sources/WebFontKit/Registry/CoreTextRegistrar.swift /host/spi-builder-workspace/Sources/WebFontKit/Registry/FontRegistrar.swift /host/spi-builder-workspace/Sources/WebFontKit/Registry/Registration.swift /host/spi-builder-workspace/Sources/WebFontKit/Registry/Registry.swift /host/spi-builder-workspace/Sources/WebFontKit/Registry/Removal.swift /host/spi-builder-workspace/Sources/WebFontKit/Registry/WarmUp.swift /host/spi-builder-workspace/Sources/WebFontKit/Store/FileOperations.swift /host/spi-builder-workspace/Sources/WebFontKit/Store/Store.swift /host/spi-builder-workspace/Sources/WebFontKit/Store/StoredFileName.swift /host/spi-builder-workspace/Sources/WebFontKit/Support/Lock.swift /host/spi-builder-workspace/Sources/WebFontKit/Support/LogSink.swift /host/spi-builder-workspace/Sources/WebFontKit/Support/Turns.swift /host/spi-builder-workspace/Sources/WebFontKit/SwiftUI/Previews.swift /host/spi-builder-workspace/Sources/WebFontKit/SwiftUI/WebFontModifier.swift -target aarch64-unknown-linux-android28 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /android-ndk/android-ndk-r30/toolchains/llvm/prebuilt/linux-x86_64/sysroot -sysroot /android-ndk/android-ndk-r30/toolchains/llvm/prebuilt/linux-x86_64/sysroot -I /host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64 -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_AVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /root/.local/share/swiftly/toolchains/6.4.0/usr/lib/swift/host/plugins/testing\#/root/.local/share/swiftly/toolchains/6.4.0/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-6.4.0-RELEASE_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /android-ndk/android-ndk-r30/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/21 -Xcc -fno-omit-frame-pointer -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-android-aarch64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name WebFontKit -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/WebFontKit_const_extract_protocols.json -in-process-plugin-server-path /root/.local/share/swiftly/toolchains/6.4.0/usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /root/.local/share/swiftly/toolchains/6.4.0/usr/lib/swift/host/plugins -plugin-path /root/.local/share/swiftly/toolchains/6.4.0/usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/Modules/WebFontKit.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/Modules/WebFontKit.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/WebFontKit-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/WebFontKit-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/WebFontKit-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/WebFontKit.build/Debug-android-aarch64/WebFontKit-t.build/Objects-normal/aarch64/Modules/WebFontKit.swiftmodule
error: Build failed
BUILD FAILURE 6.4 android