Swift Package Index

Build Information

Failed to build swift-signal-handling, reference main (3dcac5), with Swift 6.4 for Wasm on 21 Sep 2026 15:49:53 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/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:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/xcode-actions/swift-signal-handling.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/xcode-actions/swift-signal-handling
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 3dcac57 Add a comment about an expected test failure on Linux
Cloned https://github.com/xcode-actions/swift-signal-handling.git
Revision (git rev-parse @):
3dcac579d3fa07cbdfde41de59fe5e60b7a5ff50
SUCCESS checkout https://github.com/xcode-actions/swift-signal-handling.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/xcode-actions/swift-signal-handling.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/xcode-actions/clt-logger.git
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/Frizlab/GlobalConfModule.git
Fetching https://github.com/apple/swift-argument-parser.git
[1/8132] Fetching swift-log
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[9393/28596] Fetching swift-log, globalconfmodule, clt-logger, swift-argument-parser
Fetched https://github.com/apple/swift-log.git (0.51s)
[1458/20464] Fetching globalconfmodule, clt-logger, swift-argument-parser
Fetched https://github.com/Frizlab/GlobalConfModule.git (0.55s)
Fetched https://github.com/xcode-actions/clt-logger.git (0.55s)
[3973/18918] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser.git (0.73s)
Computing version for https://github.com/Frizlab/GlobalConfModule.git
Computed https://github.com/Frizlab/GlobalConfModule.git at 0.4.5 (0.90s)
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Fetched https://github.com/swiftlang/swift-syntax.git (3.05s)
Computing version for https://github.com/apple/swift-service-context.git
Computed https://github.com/apple/swift-service-context.git at 1.3.0 (3.24s)
Computing version for https://github.com/swiftlang/swift-syntax.git
Computed https://github.com/swiftlang/swift-syntax.git at 603.0.2 (1.18s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.8.2 (0.17s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.18s)
Computing version for https://github.com/xcode-actions/clt-logger.git
Computed https://github.com/xcode-actions/clt-logger.git at 1.0.0 (0.14s)
Creating working copy for https://github.com/apple/swift-service-context.git
Working copy of https://github.com/apple/swift-service-context.git resolved at 1.3.0
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.8.2
Creating working copy for https://github.com/Frizlab/GlobalConfModule.git
Working copy of https://github.com/Frizlab/GlobalConfModule.git resolved at 0.4.5
Creating working copy for https://github.com/xcode-actions/clt-logger.git
Working copy of https://github.com/xcode-actions/clt-logger.git resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
Creating working copy for https://github.com/swiftlang/swift-syntax.git
Working copy of https://github.com/swiftlang/swift-syntax.git resolved at 603.0.2
Building for debugging...
[Computing dependencies]
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error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile Sigaction.swift
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile SigactionFlag.swift
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:48:24: error: cannot find type 'sigaction' in scope
 46 | 	 If the handler of the sigaction is `SIG_IGN` or `SIG_DFL`, we check the `sa_flags` not to contains the `SA_SIGINFO` bit.
 47 | 	 If they do, we log an error, as this is invalid. */
 48 | 	public init(rawValue: sigaction) {
    |                        `- error: cannot find type 'sigaction' in scope
 49 | 		self.mask = Signal.set(from: rawValue.sa_mask)
 50 | 		self.flags = SigactionFlags(rawValue: rawValue.sa_flags)
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:83:23: error: cannot find type 'sigaction' in scope
 81 | 	}
 82 |
 83 | 	public var rawValue: sigaction {
    |                       `- error: cannot find type 'sigaction' in scope
 84 | 		if !isValid {
 85 | 			Conf.logger?.warning("Getting sigaction from an invalid Sigaction.")
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionHandler.swift:19:80: error: cannot find type 'siginfo_t' in scope
17 |
18 | 	case ansiC(@convention(c) (_ signalID: Int32) -> Void)
19 | 	case posix(@convention(c) (_ signalID: Int32, _ siginfo: UnsafeMutablePointer<siginfo_t>?, _ userThreadContext: UnsafeMutableRawPointer?) -> Void)
   |                                                                                `- error: cannot find type 'siginfo_t' in scope
20 |
21 | 	public static func ==(lhs: SigactionHandler, rhs: SigactionHandler) -> Bool {
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:12:15: error: type 'Sigaction' does not conform to protocol 'RawRepresentable'
 10 |
 11 |
 12 | public struct Sigaction : Equatable, RawRepresentable, Sendable {
    |               |- error: type 'Sigaction' does not conform to protocol 'RawRepresentable'
    |               `- note: add stubs for conformance
 13 |
 14 | 	public static let ignoreAction = Sigaction(handler: .ignoreHandler)
Swift.RawRepresentable.RawValue:2:16: note: protocol requires nested type 'RawValue'
1 | protocol RawRepresentable {
2 | associatedtype RawValue}
  |                `- note: protocol requires nested type 'RawValue'
3 |
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:40:55: error: cannot find 'SA_SIGINFO' in scope
38 | 	  and should match the matching prototype.
39 | 	 This bit should not be set when assigning `SIG_DFL` or `SIG_IGN`. */
40 | 	public static let siginfo = SigactionFlags(rawValue: SA_SIGINFO)
   |                                                       `- error: cannot find 'SA_SIGINFO' in scope
41 |
42 | 	public let rawValue: CInt
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:54:49: error: cannot find 'SIG_IGN' in scope
 52 | #if !os(Linux)
 53 | 		switch OpaquePointer(bitPattern: unsafeBitCast(rawValue.__sigaction_u.__sa_handler, to: Int.self)) {
 54 | 			case OpaquePointer(bitPattern: unsafeBitCast(SIG_IGN, to: Int.self)): self.handler = .ignoreHandler
    |                                                 `- error: cannot find 'SIG_IGN' in scope
 55 | 			case OpaquePointer(bitPattern: unsafeBitCast(SIG_DFL, to: Int.self)): self.handler = .defaultHandler
 56 | 			default:
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:55:49: error: cannot find 'SIG_DFL' in scope
 53 | 		switch OpaquePointer(bitPattern: unsafeBitCast(rawValue.__sigaction_u.__sa_handler, to: Int.self)) {
 54 | 			case OpaquePointer(bitPattern: unsafeBitCast(SIG_IGN, to: Int.self)): self.handler = .ignoreHandler
 55 | 			case OpaquePointer(bitPattern: unsafeBitCast(SIG_DFL, to: Int.self)): self.handler = .defaultHandler
    |                                                 `- error: cannot find 'SIG_DFL' in scope
 56 | 			default:
 57 | 				if flags.contains(.siginfo) {self.handler = .posix(rawValue.__sigaction_u.__sa_sigaction)}
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:76:16: error: cannot find 'sigaction' in scope
 74 |
 75 | 	public init(signal: Signal) throws {
 76 | 		var action = sigaction()
    |                `- error: cannot find 'sigaction' in scope
 77 | 		guard sigaction(signal.rawValue, nil, &action) == 0 else {
 78 | 			throw SignalHandlingError.nonDestructiveSystemError(Errno(rawValue: errno))
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:77:9: error: cannot find 'sigaction' in scope
 75 | 	public init(signal: Signal) throws {
 76 | 		var action = sigaction()
 77 | 		guard sigaction(signal.rawValue, nil, &action) == 0 else {
    |         `- error: cannot find 'sigaction' in scope
 78 | 			throw SignalHandlingError.nonDestructiveSystemError(Errno(rawValue: errno))
 79 | 		}
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:80:8: error: no exact matches in call to initializer 
 32 | 	public var handler: SigactionHandler
 33 |
 34 | 	public init(handler: SigactionHandler) {
    |         `- note: incorrect labels for candidate (have: '(rawValue:)', expected: '(handler:)')
 35 | 		self.mask = []
 36 | 		switch handler {
    :
 73 | 	}
 74 |
 75 | 	public init(signal: Signal) throws {
    |         `- note: incorrect labels for candidate (have: '(rawValue:)', expected: '(signal:)')
 76 | 		var action = sigaction()
 77 | 		guard sigaction(signal.rawValue, nil, &action) == 0 else {
 78 | 			throw SignalHandlingError.nonDestructiveSystemError(Errno(rawValue: errno))
 79 | 		}
 80 | 		self.init(rawValue: action)
    |        `- error: no exact matches in call to initializer 
 81 | 	}
 82 |
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:88:13: error: cannot find 'sigaction' in scope
 86 | 		}
 87 |
 88 | 		var ret = sigaction()
    |             `- error: cannot find 'sigaction' in scope
 89 | 		ret.sa_mask = Signal.sigset(from: mask)
 90 | 		ret.sa_flags = flags.rawValue
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:94:59: error: cannot find 'SIG_IGN' in scope
 92 | #if !os(Linux)
 93 | 		switch handler {
 94 | 			case .ignoreHandler:  ret.__sigaction_u.__sa_handler = SIG_IGN
    |                                                           `- error: cannot find 'SIG_IGN' in scope
 95 | 			case .defaultHandler: ret.__sigaction_u.__sa_handler = SIG_DFL
 96 | 			case .ansiC(let h):   ret.__sigaction_u.__sa_handler = h
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:95:59: error: cannot find 'SIG_DFL' in scope
 93 | 		switch handler {
 94 | 			case .ignoreHandler:  ret.__sigaction_u.__sa_handler = SIG_IGN
 95 | 			case .defaultHandler: ret.__sigaction_u.__sa_handler = SIG_DFL
    |                                                           `- error: cannot find 'SIG_DFL' in scope
 96 | 			case .ansiC(let h):   ret.__sigaction_u.__sa_handler = h
 97 | 			case .posix(let h):   ret.__sigaction_u.__sa_sigaction = h
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:133:20: error: cannot find 'sigaction' in scope
131 | 		}
132 |
133 | 		var oldCAction = sigaction()
    |                    `- error: cannot find 'sigaction' in scope
134 | 		var newCAction = self.rawValue
135 | 		guard sigaction(signal.rawValue, &newCAction, &oldCAction) == 0 else {
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:135:9: error: cannot find 'sigaction' in scope
133 | 		var oldCAction = sigaction()
134 | 		var newCAction = self.rawValue
135 | 		guard sigaction(signal.rawValue, &newCAction, &oldCAction) == 0 else {
    |         `- error: cannot find 'sigaction' in scope
136 | 			throw SignalHandlingError.nonDestructiveSystemError(Errno(rawValue: errno))
137 | 		}
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:138:22: error: no exact matches in call to initializer 
 32 | 	public var handler: SigactionHandler
 33 |
 34 | 	public init(handler: SigactionHandler) {
    |         `- note: incorrect labels for candidate (have: '(rawValue:)', expected: '(handler:)')
 35 | 		self.mask = []
 36 | 		switch handler {
    :
 73 | 	}
 74 |
 75 | 	public init(signal: Signal) throws {
    |         `- note: incorrect labels for candidate (have: '(rawValue:)', expected: '(signal:)')
 76 | 		var action = sigaction()
 77 | 		guard sigaction(signal.rawValue, nil, &action) == 0 else {
    :
136 | 			throw SignalHandlingError.nonDestructiveSystemError(Errno(rawValue: errno))
137 | 		}
138 | 		let oldSigaction = Sigaction(rawValue: oldCAction)
    |                      `- error: no exact matches in call to initializer 
139 | 		if revertIfIgnored && oldSigaction == .ignoreAction {
140 | 			guard sigaction(signal.rawValue, &oldCAction, nil) == 0 else {
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift:140:10: error: cannot find 'sigaction' in scope
138 | 		let oldSigaction = Sigaction(rawValue: oldCAction)
139 | 		if revertIfIgnored && oldSigaction == .ignoreAction {
140 | 			guard sigaction(signal.rawValue, &oldCAction, nil) == 0 else {
    |          `- error: cannot find 'sigaction' in scope
141 | 				throw SignalHandlingError.destructiveSystemError(Errno(rawValue: errno))
142 | 			}
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:11:59: error: cannot find 'SA_NOCLDSTOP' in scope
 9 | 	 If this bit is set when installing a catching function for the `SIGCHLD` signal,
10 | 	  the `SIGCHLD` signal will be generated only when a child process exits, not when a child process stops. */
11 | 	public static let noChildStop = SigactionFlags(rawValue: SA_NOCLDSTOP)
   |                                                           `- error: cannot find 'SA_NOCLDSTOP' in scope
12 |
13 | 	/**
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:19:59: error: cannot find 'SA_NOCLDWAIT' in scope
17 | 	  it blocks until all of the calling process’s child processes terminate,
18 | 	  and then returns a value of -1 with errno set to ECHILD. */
19 | 	public static let noChildWait = SigactionFlags(rawValue: SA_NOCLDWAIT)
   |                                                           `- error: cannot find 'SA_NOCLDWAIT' in scope
20 |
21 | 	/**
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:23:55: error: cannot find 'SA_ONSTACK' in scope
21 | 	/**
22 | 	 If this bit is set, the system will deliver the signal to the process on a signal stack, specified with `sigaltstack(2)`. */
23 | 	public static let onStack = SigactionFlags(rawValue: SA_ONSTACK)
   |                                                       `- error: cannot find 'SA_ONSTACK' in scope
24 |
25 | 	/**
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:27:55: error: cannot find 'SA_NODEFER' in scope
25 | 	/**
26 | 	 If this bit is set, further occurrences of the delivered signal are not masked during the execution of the handler. */
27 | 	public static let noDefer = SigactionFlags(rawValue: SA_NODEFER)
   |                                                       `- error: cannot find 'SA_NODEFER' in scope
28 |
29 | 	/**
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:31:65: error: cannot find 'SA_RESETHAND' in scope
29 | 	/**
30 | 	 If this bit is set, the handler is reset back to `SIG_DFL` at the moment the signal is delivered. */
31 | 	public static let resetHandler = SigactionFlags(rawValue: CInt(SA_RESETHAND) /* On Linux, an UInt32 instead of Int32, so we cast… */)
   |                                                                 `- error: cannot find 'SA_RESETHAND' in scope
32 |
33 | 	/** See `sigaction(2)`. */
/host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift:34:55: error: cannot find 'SA_RESTART' in scope
32 |
33 | 	/** See `sigaction(2)`. */
34 | 	public static let restart = SigactionFlags(rawValue: SA_RESTART)
   |                                                       `- error: cannot find 'SA_RESTART' in scope
35 |
36 | 	/**
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/SignalHandling/\ Config.swift /host/spi-builder-workspace/Sources/SignalHandling/\ Errors.swift -primary-file /host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Sigaction.swift -primary-file /host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionFlag.swift /host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/SigactionHandler.swift /host/spi-builder-workspace/Sources/SignalHandling/CStructsInSwift/Signal.swift /host/spi-builder-workspace/Sources/SignalHandling/DelayedSigaction/DelayedSigaction.swift /host/spi-builder-workspace/Sources/SignalHandling/DelayedSigaction/DelayedSigactionHandler.swift /host/spi-builder-workspace/Sources/SignalHandling/DelayedSigaction/SigactionDelayer_Block.swift /host/spi-builder-workspace/Sources/SignalHandling/DelayedSigaction/SigactionDelayer_Unsig.swift /host/spi-builder-workspace/Sources/SignalHandling/ErrnoWithoutSystem.swift /host/spi-builder-workspace/Sources/SignalHandling/Utils.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/Sigaction.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/Sigaction.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/Sigaction.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/Sigaction.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/SigactionFlag.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/SigactionFlag.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/SigactionFlag.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-signal-handling.build/Debug-webassembly-wasm32/SignalHandling-t.build/Objects-normal/wasm32/SigactionFlag.dia -target wasm32-unknown-wasip1 -disable-objc-interop -sdk 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error: Build failed
BUILD FAILURE 6.4 wasm