Swift Package Index

Build Information

Failed to build Locks, reference main (e5c133), with Swift 6.4 for Linux on 19 Sep 2026 18:01:22 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/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: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/adamwulf/Locks.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/adamwulf/Locks
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e5c1338 Add method to atomically toggle a boolean
Cloned https://github.com/adamwulf/Locks.git
Revision (git rev-parse @):
e5c133845f3ad1a890a8823374c2694f969884e2
SUCCESS checkout https://github.com/adamwulf/Locks.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/adamwulf/Locks.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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
Fetching https://github.com/themomax/swift-docc-plugin
[1/647] Fetching swift-docc-plugin
Fetched https://github.com/themomax/swift-docc-plugin (0.57s)
Fetching https://github.com/apple/swift-docc-symbolkit
[1/3824] Fetching swift-docc-symbolkit
Fetched https://github.com/apple/swift-docc-symbolkit (0.62s)
Computing version for https://github.com/apple/swift-docc-symbolkit
Computed https://github.com/apple/swift-docc-symbolkit at 1.0.0 (0.86s)
Creating working copy for https://github.com/apple/swift-docc-symbolkit
Working copy of https://github.com/apple/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/themomax/swift-docc-plugin
Working copy of https://github.com/themomax/swift-docc-plugin resolved at add-extended-types-flag (c234e51)
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/Locks/ThreadLocal.swift:48:13: error: setter for property 'threadDictionary' is private and cannot be referenced from an '@inlinable' function
46 |                 return v
47 |             }
48 |             Thread.current.threadDictionary[key] = initialValue
   |             `- error: setter for property 'threadDictionary' is private and cannot be referenced from an '@inlinable' function
49 |             return initialValue
50 |         }
Foundation.Thread._:2:1: note: setter for property 'threadDictionary' is not '@usableFromInline' or public
1 | class Thread {
2 | set(value)}
  | `- note: setter for property 'threadDictionary' is not '@usableFromInline' or public
3 |
/host/spi-builder-workspace/Sources/Locks/ThreadLocal.swift:52:13: error: setter for property 'threadDictionary' is private and cannot be referenced from an '@inlinable' function
50 |         }
51 |         set {
52 |             Thread.current.threadDictionary[key] = newValue
   |             `- error: setter for property 'threadDictionary' is private and cannot be referenced from an '@inlinable' function
53 |         }
54 |     }
Foundation.Thread._:2:1: note: setter for property 'threadDictionary' is not '@usableFromInline' or public
1 | class Thread {
2 | set(value)}
  | `- note: setter for property 'threadDictionary' is not '@usableFromInline' or public
3 |
/host/spi-builder-workspace/Sources/Locks/UnfairLock.swift:14:29: error: cannot find type 'os_unfair_lock_t' in scope
12 | public class UnfairLock: NSLocking {
13 |     /// The underlying os_unfair_lock_t used to provide the lock.
14 |     private let unfairLock: os_unfair_lock_t
   |                             `- error: cannot find type 'os_unfair_lock_t' in scope
15 |     /// A flag to indicate if the lock is currently locked.
16 |     private var locked = false
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Locks/AtomicDictionary.swift /host/spi-builder-workspace/Sources/Locks/AtomicSet.swift /host/spi-builder-workspace/Sources/Locks/AtomicWrapper+Extensions.swift /host/spi-builder-workspace/Sources/Locks/AtomicWrapper.swift /host/spi-builder-workspace/Sources/Locks/Mutex.swift /host/spi-builder-workspace/Sources/Locks/NSLocking+Extensions.swift /host/spi-builder-workspace/Sources/Locks/ReadWriteLock.swift /host/spi-builder-workspace/Sources/Locks/RecursiveMutex.swift /host/spi-builder-workspace/Sources/Locks/ThreadLocal.swift /host/spi-builder-workspace/Sources/Locks/UnfairLock.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 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/Locks.build/Debug-linux-x86_64/Locks-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Locks -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Locks_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/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Modules/Locks.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Modules/Locks.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Locks-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Locks-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Locks-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Locks.build/Debug-linux-x86_64/Locks-t.build/Objects-normal/x86_64/Modules/Locks.swiftmodule
error: Build failed
BUILD FAILURE 6.4 linux