Swift Package Index

Build Information

Failed to build SwiftExecutors, reference main (213eff), with Swift 6.4 for Linux on 13 Oct 2026 04:54:54 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886768-2":/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:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Kosikowski/swift-executors.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/Kosikowski/swift-executors
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 213eff4 Migrate to Swift 6.2+ and fix ThreadExecutor (v0.2.0) (#4)
Cloned https://github.com/Kosikowski/swift-executors.git
Revision (git rev-parse @):
213eff4cd741ab87444c24a3fe7f1379e10d7d2c
SUCCESS checkout https://github.com/Kosikowski/swift-executors.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Kosikowski/swift-executors.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886768-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:cb09f0c0d537a8668f02529c380785d189fc75032d54572211355a09e050e122
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Building for debugging...
[Planning deferred tasks]
error: SwiftCompile normal x86_64 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/SwiftExecutors/ThreadExecutor.swift:58:29: error: cannot find type 'CFRunLoop' in scope
 56 |     /// Exposes the run loop for testing purposes only.
 57 |     @_spi(ThreadExecutorTesting)
 58 |     public var testRunLoop: CFRunLoop {
    |                             `- error: cannot find type 'CFRunLoop' in scope
 59 |         worker.runLoop
 60 |     }
/host/spi-builder-workspace/Sources/SwiftExecutors/ThreadExecutor.swift:190:31: error: cannot find type 'CFRunLoop' in scope
188 |     }
189 |
190 |     private(set) var runLoop: CFRunLoop!
    |                               `- error: cannot find type 'CFRunLoop' in scope
191 |     private(set) var threadID: pthread_t!
192 |
/host/spi-builder-workspace/Sources/SwiftExecutors/ThreadExecutor.swift:195:25: error: cannot find type 'CFRunLoopSource' in scope
193 |     /// Signalled while jobs are waiting; its callout runs them. Being a
194 |     /// source, it also keeps the run loop from finishing while it is idle.
195 |     private var source: CFRunLoopSource!
    |                         `- error: cannot find type 'CFRunLoopSource' in scope
196 |
197 |     private let ready = DispatchSemaphore(value: 0)
/host/spi-builder-workspace/Sources/SwiftExecutors/ThreadExecutor.swift:375:38: error: cannot find type 'CFRunLoopActivity' in scope
373 |
374 |     /// Tracks how deeply the run loop is nested, and stops it when asked.
375 |     private func observe(_ activity: CFRunLoopActivity) {
    |                                      `- error: cannot find type 'CFRunLoopActivity' in scope
376 |         switch activity {
377 |         case .entry:
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/SwiftExecutors/DispatchQueueTaskExecutor.swift /host/spi-builder-workspace/Sources/SwiftExecutors/QueueTaskExecutor.swift /host/spi-builder-workspace/Sources/SwiftExecutors/ThreadExecutor.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -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-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature InferIsolatedConformances -enable-upcoming-feature ExistentialAny -enable-upcoming-feature MemberImportVisibility -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 -enable-anonymous-context-mangled-names -file-compilation-dir /host -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-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftExecutors -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/SwiftExecutors_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/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/Modules/SwiftExecutors.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/Modules/SwiftExecutors.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/SwiftExecutors-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/SwiftExecutors-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/SwiftExecutors-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExecutors.build/Debug-linux-x86_64/SwiftExecutors-t.build/Objects-normal/x86_64/Modules/SwiftExecutors.swiftmodule
error: Build failed
BUILD FAILURE 6.4 linux