CLIKit – Build Information – Swift Package Index

Build Information

Failed to build CLIKit, reference 0.3.7 (826cab), with Swift 6.4 for Linux on 20 Sep 2026 04:28:59 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/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:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nerdsupremacist/CLIKit.git
Reference: 0.3.7
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/nerdsupremacist/CLIKit
 * tag               0.3.7      -> FETCH_HEAD
HEAD is now at 826cabc Fixing compiler type check timeout error
Cloned https://github.com/nerdsupremacist/CLIKit.git
Revision (git rev-parse @):
826cabcebb429772d8dac84d562fca94b701bc46
SUCCESS checkout https://github.com/nerdsupremacist/CLIKit.git at 0.3.7
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/nerdsupremacist/CLIKit.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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:c77fcce225e223ac0fafed844619173fc6de8d62dd560eeb28db3182af6a282b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Building for debugging...
[Planning deferred tasks]
[19 / 27] CLIKit
error: SwiftCompile normal x86_64 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/CLIKit/Command Line/Arguments/CommandArgumentValue.swift:28:1: [1;33mwarning: [1;39mextension declares a conformance of imported type 'Optional' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future[0;0m
[0;36m26 |[0;0m /// Allow Optional to implement CustomStringConvertbile for wrapped types that
[0;36m27 |[0;0m /// implement CommandArgumentValue
[0;36m28 |[0;0m extension Optional: CustomStringConvertible where Wrapped: CommandArgumentValue {
   [0;36m|[0;0m |- [1;33mwarning: [1;39mextension declares a conformance of imported type 'Optional' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future[0;0m
   [0;36m|[0;0m `- [1;39mnote: [1;39madd '@retroactive' to silence this warning[0;0m
[0;36m29 |[0;0m     public var description: String {
[0;36m30 |[0;0m         switch self {
/host/spi-builder-workspace/Sources/CLIKit/Command Line/Parser State Machine/ParserStateMachine.swift:49:38: [1;33mwarning: [1;39musing 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead[0;0m [#deprecation]
[0;36m47 |[0;0m }
[0;36m48 |[0;0m
[0;36m49 |[0;0m protocol ParserStateMachineDelegate: class {
   [0;36m|[0;0m                                      `- [1;33mwarning: [1;39musing 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead[0;0m [#deprecation]
[0;36m50 |[0;0m
[0;36m51 |[0;0m     /// Return state to transition to from the current state given an event.
/host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/SubprocessCaptureOutputThread.swift:13:13: [1;31merror: [1;39mcannot inherit from class 'Thread' (compiled with Swift 6.4.2) because it has overridable members that could not be loaded in Swift 5.10[0;0m
[0;36m11 |[0;0m #endif
[0;36m12 |[0;0m
[0;36m13 |[0;0m final class SubprocessCaptureThread: Thread {
   [0;36m|[0;0m             `- [1;31merror: [1;39mcannot inherit from class 'Thread' (compiled with Swift 6.4.2) because it has overridable members that could not be loaded in Swift 5.10[0;0m
[0;36m14 |[0;0m
[0;36m15 |[0;0m     private let bufferChunkSize = 4096
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/Array+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/Dictionary+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/Double+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/Float+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/Int+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/Set+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/String+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/UInt+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/Argument\ Value\ Types/URL+CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/CommandArgumentSpecification.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/CommandArgumentValue.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/CommandFlag.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/CommandInput.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/CommandOption.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Arguments/HelpFlag.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Command.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/CommandLineError.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/CommandLineParser.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/CommandUsage.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Parser\ State\ Machine/ParserContext.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Parser\ State\ Machine/ParserEvent.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Parser\ State\ Machine/ParserState.swift /host/spi-builder-workspace/Sources/CLIKit/Command\ Line/Parser\ State\ Machine/ParserStateMachine.swift /host/spi-builder-workspace/Sources/CLIKit/Execution/Execution.swift /host/spi-builder-workspace/Sources/CLIKit/Execution/ExecutionMode.swift /host/spi-builder-workspace/Sources/CLIKit/File\ Management/ExecutableFinder.swift /host/spi-builder-workspace/Sources/CLIKit/File\ Management/Path+FileManagement.swift /host/spi-builder-workspace/Sources/CLIKit/File\ Management/Path.swift /host/spi-builder-workspace/Sources/CLIKit/IO/Console.swift /host/spi-builder-workspace/Sources/CLIKit/IO/IO.swift /host/spi-builder-workspace/Sources/CLIKit/IO/REPL/Basic\ REPL/BasicREPL.swift /host/spi-builder-workspace/Sources/CLIKit/IO/REPL/CommandLineHistory.swift /host/spi-builder-workspace/Sources/CLIKit/IO/REPL/ReadEvaluatePrintLoop.swift /host/spi-builder-workspace/Sources/CLIKit/IO/REPL/Terminal\ REPL/TerminalREPL.swift /host/spi-builder-workspace/Sources/CLIKit/IO/REPL/Terminal\ REPL/TerminalREPLState.swift /host/spi-builder-workspace/Sources/CLIKit/IO/StandardIO.swift /host/spi-builder-workspace/Sources/CLIKit/IO/Terminal/Terminal.swift /host/spi-builder-workspace/Sources/CLIKit/IO/Terminal/TerminalCode.swift /host/spi-builder-workspace/Sources/CLIKit/IO/Terminal/TerminalInputMode.swift /host/spi-builder-workspace/Sources/CLIKit/IO/Terminal/TerminalString.swift /host/spi-builder-workspace/Sources/CLIKit/IO/Utilities/LineReader.swift /host/spi-builder-workspace/Sources/CLIKit/IO/WrapsFileHandle.swift /host/spi-builder-workspace/Sources/CLIKit/Internal/Lock.swift /host/spi-builder-workspace/Sources/CLIKit/Internal/Log.swift /host/spi-builder-workspace/Sources/CLIKit/Internal/Regex.swift /host/spi-builder-workspace/Sources/CLIKit/Internal/Sequence+Convenience.swift /host/spi-builder-workspace/Sources/CLIKit/Internal/String+Utilities.swift /host/spi-builder-workspace/Sources/CLIKit/Process/Environment.swift /host/spi-builder-workspace/Sources/CLIKit/Process/StandardEnvironmentVariable.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/CStrings.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/SubprocessAttributes.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/SubprocessCaptureOutputThread.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/SubprocessIO.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/SubprocessPipe.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Internal/SubprocessStateMachine.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/Subprocess.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/SubprocessError.swift /host/spi-builder-workspace/Sources/CLIKit/Subprocess/SubprocessResult.swift /host/spi-builder-workspace/Sources/CLIKit/Utilities/Character+Inspection.swift /host/spi-builder-workspace/Sources/CLIKit/Utilities/SimpleWordCompletion.swift /host/spi-builder-workspace/Sources/CLIKit/Utilities/String+Words.swift /host/spi-builder-workspace/Sources/CLIKit/Utilities/TextCompletion.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 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D DEBUG -D SWIFT_PACKAGE -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 -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/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CLIKit -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/CLIKit_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/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/Modules/CLIKit.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/Modules/CLIKit.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/CLIKit-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/CLIKit-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/CLIKit-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/CLIKit.build/Debug-linux-x86_64/CLIKit-t.build/Objects-normal/x86_64/Modules/CLIKit.swiftmodule
error: Build failed
BUILD FAILURE 6.4 linux