Swift Package IndexBuild Information
Failed to build CombineX, reference 0.4.0 (98096c), with Swift 6.3 for Android on 12 Apr 2026 08:16:24 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/cx-org/CombineX.git
Reference: 0.4.0
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/cx-org/CombineX
* tag 0.4.0 -> FETCH_HEAD
HEAD is now at 98096c6 Merge pull request #125 from luoxiu/feature/prepare-for-0.4.0
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 @):
98096c6b2a51481cb6e4bae8da0a808d8cab09a1
SUCCESS checkout https://github.com/cx-org/CombineX.git at 0.4.0
========================================
Build
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Selected platform: android
Swift version: 6.3
Building package at path: $PWD
https://github.com/cx-org/CombineX.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:9008270ea37a55e78725e6225015adb5eff8582da520c5232bf0499f32c36dc4
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest
Fetching https://github.com/Quick/Nimble.git
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/ddddxxx/Semver.git
Fetching https://github.com/Quick/Quick.git
[1/398] Fetching semver
[399/15294] Fetching semver, quick
[400/17114] Fetching semver, quick, swift-atomics
[8327/36931] Fetching semver, quick, swift-atomics, nimble
Fetched https://github.com/apple/swift-atomics.git from cache (1.04s)
Fetched https://github.com/Quick/Quick.git from cache (1.05s)
[4956/20215] Fetching semver, nimble
Fetched https://github.com/ddddxxx/Semver.git from cache (2.77s)
Fetched https://github.com/Quick/Nimble.git from cache (2.80s)
Computing version for https://github.com/ddddxxx/Semver.git
Computed https://github.com/ddddxxx/Semver.git at 0.2.1 (3.65s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 0.0.3 (0.80s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 9.2.1 (0.87s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
[1/1257] Fetching cwlpreconditiontesting
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (0.63s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 3.1.2 (1.51s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (0.84s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/460] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.37s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (1.24s)
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/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/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
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/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
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...
[0/13] Write sources
[11/13] Compiling _AtomicsShims.c
[12/13] Write swift-version--4F562202D5529B1.txt
[14/111] Emitting module _CXCompatible
/host/spi-builder-workspace/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/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/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 {
[15/111] Compiling CXUtility Math.swift
/host/spi-builder-workspace/Sources/CXUtility/Locking.swift:7:8: error: no such module 'Darwin.C'
5 | import WinSDK
6 | #else
7 | import Darwin.C
| `- error: no such module 'Darwin.C'
8 | #endif
9 |
[16/111] Compiling CXUtility LockedAtomic.swift
/host/spi-builder-workspace/Sources/CXUtility/Locking.swift:7:8: error: no such module 'Darwin.C'
5 | import WinSDK
6 | #else
7 | import Darwin.C
| `- error: no such module 'Darwin.C'
8 | #endif
9 |
[17/111] Compiling _CXCompatible Swift.swift
[18/111] Compiling _CXCompatible SwitchToLatest.swift
[19/111] Compiling _CXCompatible Optional.swift
[20/111] Compiling _CXCompatible CXNamespace.swift
[21/111] Compiling _CXCompatible FlatMap.swift
[22/111] Compiling Nimble AssertionRecorder.swift
[23/111] Compiling Nimble NMBExpectation.swift
[24/112] Compiling CXUtility Locking.swift
/host/spi-builder-workspace/Sources/CXUtility/Locking.swift:7:8: error: no such module 'Darwin.C'
5 | import WinSDK
6 | #else
7 | import Darwin.C
| `- error: no such module 'Darwin.C'
8 | #endif
9 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[25/112] Emitting module CXUtility
/host/spi-builder-workspace/Sources/CXUtility/Locking.swift:7:8: error: no such module 'Darwin.C'
5 | import WinSDK
6 | #else
7 | import Darwin.C
| `- error: no such module 'Darwin.C'
8 | #endif
9 |
[26/112] Compiling CXUtility Const.swift
/host/spi-builder-workspace/Sources/CXUtility/Locking.swift:7:8: error: no such module 'Darwin.C'
5 | import WinSDK
6 | #else
7 | import Darwin.C
| `- error: no such module 'Darwin.C'
8 | #endif
9 |
[27/112] Compiling Nimble NimbleXCTestHandler.swift
[28/112] Compiling Nimble AllPass.swift
[29/112] Compiling Atomics AtomicLazyReference.swift
[30/112] Emitting module Atomics
/host/spi-builder-workspace/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/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/.build/checkouts/Nimble/Sources/Nimble/Matchers/BeginWith.swift:27:54: error: value of type 'AnyObject' has no member 'isEqual'
25 | let collectionValue = collection.object(at: 0) as AnyObject
26 | #endif
27 | return PredicateStatus(bool: collectionValue.isEqual(startingElement))
| `- error: value of type 'AnyObject' has no member 'isEqual'
28 | }
29 | }
[31/112] Emitting module Semver
BUILD FAILURE 6.3 android