Swift Package Index

Build Information

Failed to build CombineX, reference master (299bc0), with Swift 6.4 for Linux on 17 Sep 2026 18:32:47 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886770-1":/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/cx-org/CombineX.git
Reference: master
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/cx-org/CombineX
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 299bc0f fix swift 5.4 on linux
Submodule path 'CXShim': checked out '07309a901b26c043c33d04746ff96d6caaa99737'
Submodule path 'CXTest': checked out '37c165eab3505d1f1e3bb7f12518db5ff4fad569'
Submodule 'CXShim' (https://github.com/cx-org/CXShim) registered for path 'CXShim'
Submodule 'CXTest' (https://github.com/cx-org/CXTest) registered for path 'CXTest'
Cloning into '/host/spi-builder-workspace/CXShim'...
Cloning into '/host/spi-builder-workspace/CXTest'...
Cloned https://github.com/cx-org/CombineX.git
Revision (git rev-parse @):
299bc0f8861f7aa6708780457aeeafab1c51eaa7
SUCCESS checkout https://github.com/cx-org/CombineX.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/cx-org/CombineX.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886770-1":/host -w "$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
Fetching https://github.com/ddddxxx/Semver.git
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/Quick/Nimble.git
Fetching https://github.com/apple/swift-atomics.git
[1/398] Fetching semver
Fetched https://github.com/ddddxxx/Semver.git (0.45s)
[1/1875] Fetching swift-atomics
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Fetched https://github.com/apple/swift-atomics.git (0.60s)
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Fetched https://github.com/Quick/Quick.git (1.16s)
Fetched https://github.com/Quick/Nimble.git (1.17s)
Computing version for https://github.com/ddddxxx/Semver.git
Computed https://github.com/ddddxxx/Semver.git at 0.2.1 (1.36s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 0.0.3 (0.19s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 9.2.1 (0.19s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
[1/1257] Fetching cwlpreconditiontesting
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git (0.56s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 3.1.2 (0.74s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (0.18s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/460] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git (0.43s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (0.61s)
Creating working copy for https://github.com/ddddxxx/Semver.git
Working copy of https://github.com/ddddxxx/Semver.git resolved at 0.2.1
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 0.0.3
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 3.1.2
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 9.2.1
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 390]
[Planning deferred tasks]
[28 / 162] _AtomicsShims
[94 / 183] Atomics
[99 / 210] Nimble
/host/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:9:1: warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 7 | #endif
 8 |
 9 | extension NSObject: CXSelfWrapping {}
   | `- warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
/host/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:10:1: warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 8 |
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
11 | extension JSONDecoder: CXSelfWrapping {}
12 |
/host/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:11:1: warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
12 |
13 | extension CXWrappers {
[99 / 210] _CXCompatible
[111 / 210] Quick
[123 / 210] _CXCompatible
[124 / 210] Nimble
[135 / 210] Quick
[136 / 210] Quick
[138 / 210] Quick-product
[140 / 210] Quick-product
[145 / 210] Nimble
/host/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:9:1: warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 7 | #endif
 8 |
 9 | extension NSObject: CXSelfWrapping {}
   | `- warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
/host/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:10:1: warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 8 |
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
11 | extension JSONDecoder: CXSelfWrapping {}
12 |
/host/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:11:1: warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
12 |
13 | extension CXWrappers {
[149 / 212] Semver
[154 / 212] Nimble
[154 / 213] Nimble
[156 / 213] Nimble
[160 / 213] CXUtility
[161 / 213] CXUtility
[163 / 213] Atomics
[164 / 213] Atomics-product
[169 / 214] Atomics
[170 / 214]
[174 / 214]
[175 / 215] CombineX
[180 / 224] CombineX
[181 / 224] CombineX
[183 / 225] Nimble
/host/spi-builder-workspace/Sources/CombineX/CombineIdentifier.swift:2:22: warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 1 | #if CX_LOCK_FREE_ATOMIC
 2 | @_implementationOnly import Atomics
   |                      `- warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 3 | private let counter = UnsafeAtomic<UInt64>.create(0)
 4 | #else
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
[185 / 225] CombineX
/host/spi-builder-workspace/Sources/CombineX/Internal/Runtime.swift:285:2: warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
283 | }()
284 |
285 | @_silgen_name("swift_getTypeByMangledNameInContext")
    |  `- warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
286 | private func _getTypeByMangledNameInContext(
287 |     _ name: UnsafePointer<UInt8>,
[187 / 225] Nimble
[187 / 225] CombineX
/host/spi-builder-workspace/Sources/CombineX/CombineIdentifier.swift:2:22: warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 1 | #if CX_LOCK_FREE_ATOMIC
 2 | @_implementationOnly import Atomics
   |                      `- warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 3 | private let counter = UnsafeAtomic<UInt64>.create(0)
 4 | #else
/host/spi-builder-workspace/Sources/CombineX/Internal/Runtime.swift:285:2: warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
283 | }()
284 |
285 | @_silgen_name("swift_getTypeByMangledNameInContext")
    |  `- warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
286 | private func _getTypeByMangledNameInContext(
287 |     _ name: UnsafePointer<UInt8>,
/host/spi-builder-workspace/Sources/CombineX/Publishers/B/Result.Publisher.swift:274:32: warning: generic parameter 'Failure' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
272 | extension Result.CX.Publisher where Failure == Never {
273 |
274 |     public func setFailureType<Failure: Error>(to failureType: Failure.Type) -> Result<Output, Failure>.CX.Publisher {
    |                                `- warning: generic parameter 'Failure' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
275 |         return .init(.success(result.success))
276 |     }
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
[197 / 235] CXFoundation
error: SwiftCompile normal x86_64 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/CXFoundation/JSONDecoder.swift:21:1: warning: extension declares a conformance of imported type 'JSONDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
19 | }
20 |
21 | extension JSONDecoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'JSONDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
22 |
23 |     public typealias CX = CXWrappers.JSONDecoder
/host/spi-builder-workspace/Sources/CXFoundation/JSONEncoder.swift:21:1: warning: extension declares a conformance of imported type 'JSONEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
19 | }
20 |
21 | extension JSONEncoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'JSONEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
22 |
23 |     public typealias CX = CXWrappers.JSONEncoder
/host/spi-builder-workspace/Sources/CXFoundation/NotificationCenter.swift:10:44: error: 'CXWrappers.NSObject' requires that 'NotificationCenter' inherit from 'NSObject'
  8 | extension CXWrappers {
  9 |
 10 |     public final class NotificationCenter: NSObject<Foundation.NotificationCenter> {
    |                                            `- error: 'CXWrappers.NSObject' requires that 'NotificationCenter' inherit from 'NSObject'
 11 |
 12 |         #if COCOAPODS
/host/spi-builder-workspace/Sources/CXFoundation/NSObject.swift:9:16: note: requirement specified as 'Base' : 'NSObject' [with Base = NotificationCenter]
 7 | extension CXWrappers {
 8 |
 9 |     open class NSObject<Base: Foundation.NSObject>: CXWrapper {
   |                `- note: requirement specified as 'Base' : 'NSObject' [with Base = NotificationCenter]
10 |
11 |         public let base: Base
/host/spi-builder-workspace/Sources/CXFoundation/OperationQueue.swift:165:25: warning: class 'DelayReadyOperation' must restate inherited '@unchecked Sendable' conformance
163 |     public struct SchedulerOptions { }
164 |
165 |     private final class DelayReadyOperation: Operation, Cancellable {
    |                         `- warning: class 'DelayReadyOperation' must restate inherited '@unchecked Sendable' conformance
166 |         static var readySchedulingQueue: DispatchQueue = {
167 |             return DispatchQueue(label: "DelayReadyOperation")
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/CXFoundation/DispatchQueue.swift /host/spi-builder-workspace/Sources/CXFoundation/Internal/Polyfill.swift /host/spi-builder-workspace/Sources/CXFoundation/JSONDecoder.swift /host/spi-builder-workspace/Sources/CXFoundation/JSONEncoder.swift /host/spi-builder-workspace/Sources/CXFoundation/NSObject.swift /host/spi-builder-workspace/Sources/CXFoundation/NotificationCenter.swift /host/spi-builder-workspace/Sources/CXFoundation/OperationQueue.swift /host/spi-builder-workspace/Sources/CXFoundation/PropertyListDecoder.swift /host/spi-builder-workspace/Sources/CXFoundation/PropertyListEncoder.swift /host/spi-builder-workspace/Sources/CXFoundation/Publishers+KeyValueObserving.swift /host/spi-builder-workspace/Sources/CXFoundation/RunLoop.swift /host/spi-builder-workspace/Sources/CXFoundation/Timer.swift /host/spi-builder-workspace/Sources/CXFoundation/URLSession.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 -fmodule-map-file\=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-linux-x86_64/_AtomicsShims.modulemap -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/checkouts/swift-atomics/Sources/_AtomicsShims/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CXFoundation -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/CXFoundation_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/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/Modules/CXFoundation.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/Modules/CXFoundation.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/CXFoundation-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/CXFoundation-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/CXFoundation-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug-linux-x86_64/CXFoundation-t.build/Objects-normal/x86_64/Modules/CXFoundation.swiftmodule
error: Build failed
BUILD FAILURE 6.4 linux