Swift Package IndexBuild Information
Failed to build Mutex, reference 0.0.6 (177015), with Swift 6.3 for Wasm on 21 Apr 2026 19:20:45 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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>&1Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/swhitty/swift-mutex.git
Reference: 0.0.6
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/swhitty/swift-mutex
* tag 0.0.6 -> FETCH_HEAD
HEAD is now at 1770152 Swift 6.1.2 musl
Cloned https://github.com/swhitty/swift-mutex.git
Revision (git rev-parse @):
1770152df756b54c28ef1787df1e957d93cc62d5
SUCCESS checkout https://github.com/swhitty/swift-mutex.git at 0.0.6
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/swhitty/swift-mutex.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/6] Compiling Mutex MutexSwift5.swift
[4/6] Emitting module Mutex
/host/spi-builder-workspace/Sources/AllocatedLock.swift:37:18: error: cannot find type 'Storage' in scope
35 |
36 | @usableFromInline
37 | let storage: Storage
| `- error: cannot find type 'Storage' in scope
38 |
39 | public init(uncheckedState initialState: State) {
/host/spi-builder-workspace/Sources/AllocatedLock.swift:77:18: warning: 'AllocatedLock' is deprecated: Unused by Mutex and will be removed in future versions. [#DeprecatedDeclaration]
75 | }
76 |
77 | public extension AllocatedLock where State == Void {
| `- warning: 'AllocatedLock' is deprecated: Unused by Mutex and will be removed in future versions. [#DeprecatedDeclaration]
78 |
79 | init() {
/host/spi-builder-workspace/Sources/Mutex.swift:42:34: warning: '15.0' is not a valid version number for visionOS
40 | @available(tvOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
41 | @available(watchOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
| `- warning: '15.0' is not a valid version number for visionOS
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
44 | let storage: Storage<Value>
/host/spi-builder-workspace/Sources/Mutex.swift:41:33: warning: '15.0' is not a valid version number for watchOS
39 | @available(iOS, deprecated: 18.0, message: "use Mutex from Synchronization module")
40 | @available(tvOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
41 | @available(watchOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
| `- warning: '15.0' is not a valid version number for watchOS
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
/host/spi-builder-workspace/Sources/Mutex.swift:44:18: error: cannot find type 'Storage' in scope
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
44 | let storage: Storage<Value>
| `- error: cannot find type 'Storage' in scope
45 |
46 | public init(_ initialValue: consuming sending Value) {
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
[5/6] Compiling Mutex Mutex.swift
/host/spi-builder-workspace/Sources/Mutex.swift:42:34: warning: '15.0' is not a valid version number for visionOS
40 | @available(tvOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
41 | @available(watchOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
| `- warning: '15.0' is not a valid version number for visionOS
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
44 | let storage: Storage<Value>
/host/spi-builder-workspace/Sources/Mutex.swift:41:33: warning: '15.0' is not a valid version number for watchOS
39 | @available(iOS, deprecated: 18.0, message: "use Mutex from Synchronization module")
40 | @available(tvOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
41 | @available(watchOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
| `- warning: '15.0' is not a valid version number for watchOS
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
/host/spi-builder-workspace/Sources/Mutex.swift:44:18: error: cannot find type 'Storage' in scope
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
44 | let storage: Storage<Value>
| `- error: cannot find type 'Storage' in scope
45 |
46 | public init(_ initialValue: consuming sending Value) {
/host/spi-builder-workspace/Sources/Mutex.swift:47:24: error: cannot find 'Storage' in scope
45 |
46 | public init(_ initialValue: consuming sending Value) {
47 | self.storage = Storage(initialValue)
| `- error: cannot find 'Storage' in scope
48 | }
49 |
[6/6] Compiling Mutex AllocatedLock.swift
/host/spi-builder-workspace/Sources/AllocatedLock.swift:37:18: error: cannot find type 'Storage' in scope
35 |
36 | @usableFromInline
37 | let storage: Storage
| `- error: cannot find type 'Storage' in scope
38 |
39 | public init(uncheckedState initialState: State) {
/host/spi-builder-workspace/Sources/AllocatedLock.swift:77:18: warning: 'AllocatedLock' is deprecated: Unused by Mutex and will be removed in future versions. [#DeprecatedDeclaration]
75 | }
76 |
77 | public extension AllocatedLock where State == Void {
| `- warning: 'AllocatedLock' is deprecated: Unused by Mutex and will be removed in future versions. [#DeprecatedDeclaration]
78 |
79 | init() {
/host/spi-builder-workspace/Sources/AllocatedLock.swift:40:24: error: cannot find 'Storage' in scope
38 |
39 | public init(uncheckedState initialState: State) {
40 | self.storage = Storage(initialState: initialState)
| `- error: cannot find 'Storage' in scope
41 | }
42 |
/host/spi-builder-workspace/Sources/AllocatedLock.swift:44:24: error: cannot find 'Storage' in scope
42 |
43 | public init(initialState: State) where State: Sendable {
44 | self.storage = Storage(initialState: initialState)
| `- error: cannot find 'Storage' in scope
45 | }
46 |
/host/spi-builder-workspace/Sources/AllocatedLock.swift:80:24: error: cannot find 'Storage' in scope
78 |
79 | init() {
80 | self.storage = Storage(initialState: ())
| `- error: cannot find 'Storage' in scope
81 | }
82 |
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
BUILD FAILURE 6.3 wasm