Swift Package Index

Build Information

Failed to build CombineX, reference master (299bc0), with Swift 6.3 for Wasm on 12 Apr 2026 08:17:18 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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
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:         wasm
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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Fetching https://github.com/Quick/Nimble.git
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/ddddxxx/Semver.git
Fetching https://github.com/apple/swift-atomics.git
[1/398] Fetching semver
[399/2218] Fetching semver, swift-atomics
[1000/17114] Fetching semver, swift-atomics, quick
[8178/36931] Fetching semver, swift-atomics, quick, nimble
Fetched https://github.com/ddddxxx/Semver.git from cache (0.41s)
[12645/36533] Fetching swift-atomics, quick, nimble
Fetched https://github.com/apple/swift-atomics.git from cache (0.41s)
[10974/34713] Fetching quick, nimble
Fetched https://github.com/Quick/Quick.git from cache (0.72s)
[3766/19817] Fetching nimble
Fetched https://github.com/Quick/Nimble.git from cache (1.80s)
Computing version for https://github.com/ddddxxx/Semver.git
Computed https://github.com/ddddxxx/Semver.git at 0.2.1 (2.53s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 0.0.3 (0.74s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 9.2.1 (0.81s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
[1/1257] Fetching cwlpreconditiontesting
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (0.71s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 3.1.2 (1.40s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (0.80s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/460] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.34s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (1.12s)
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/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 9.2.1
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/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 3.1.2
Building for debugging...
[0/13] Write sources
[11/13] Compiling _AtomicsShims.c
[12/13] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[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 {
/host/spi-builder-workspace/Sources/_CXCompatible/Foundation.swift:18:50: error: no type named 'OperationQueue' in module 'Foundation'
16 |     public typealias JSONDecoder = Foundation.JSONDecoder
17 |     public typealias NotificationCenter = Foundation.NotificationCenter
18 |     public typealias OperationQueue = Foundation.OperationQueue
   |                                                  `- error: no type named 'OperationQueue' in module 'Foundation'
19 |     public typealias RunLoop = Foundation.RunLoop
20 |     public typealias Timer = Foundation.Timer
/host/spi-builder-workspace/Sources/_CXCompatible/Foundation.swift:24:46: error: 'URLSession' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
22 |     public typealias URLSession = FoundationNetworking.URLSession
23 |     #else
24 |     public typealias URLSession = Foundation.URLSession
   |                                              `- error: 'URLSession' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
25 |     #endif
26 | }
Foundation.URLSession:2:18: note: 'URLSession' has been explicitly marked unavailable here
1 | @available(*, unavailable, message: "This type has moved to the FoundationNetworking module. Import that module to use it.")
2 | public typealias URLSession = AnyObject
  |                  `- note: 'URLSession' has been explicitly marked unavailable here
[15/111] Emitting module Quick
error: emit-module command failed with exit code 1 (use -v to see invocation)
[16/114] Emitting module Nimble
/host/spi-builder-workspace/.build/checkouts/Nimble/Sources/Nimble/Adapters/NimbleEnvironment.swift:1:8: error: no such module 'Dispatch'
 1 | import Dispatch
   |        `- error: no such module 'Dispatch'
 2 | import class Foundation.NSObject
 3 | import class Foundation.Thread
[17/120] 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 |
[18/120] 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 |
[19/120] 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 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[20/120] 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 |
[21/120] 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 |
[22/120] Compiling Atomics AtomicLazyReference.swift
[23/121] Compiling _CXCompatible SwitchToLatest.swift
[24/121] Compiling _CXCompatible Optional.swift
[25/121] Compiling _CXCompatible FlatMap.swift
[26/121] Compiling _CXCompatible Swift.swift
[27/121] Compiling Atomics HighLevelTypes.swift
[28/121] Emitting module Semver
[29/121] Compiling _CXCompatible Dispatch.swift
[30/121] Compiling _CXCompatible CXNamespace.swift
/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 {
/host/spi-builder-workspace/Sources/_CXCompatible/Foundation.swift:18:50: error: no type named 'OperationQueue' in module 'Foundation'
16 |     public typealias JSONDecoder = Foundation.JSONDecoder
17 |     public typealias NotificationCenter = Foundation.NotificationCenter
18 |     public typealias OperationQueue = Foundation.OperationQueue
   |                                                  `- error: no type named 'OperationQueue' in module 'Foundation'
19 |     public typealias RunLoop = Foundation.RunLoop
20 |     public typealias Timer = Foundation.Timer
BUILD FAILURE 6.3 wasm