Swift Package IndexBuild Information
Failed to build Once, reference master (b5fd7f), with Swift 6.3 for Wasm on 11 Apr 2026 13:25:01 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/luoxiu/Once.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/luoxiu/Once
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at b5fd7f6 fix badge
Cloned https://github.com/luoxiu/Once.git
Revision (git rev-parse @):
b5fd7f667344b691db55eba2ab9c7709fa4c5d96
SUCCESS checkout https://github.com/luoxiu/Once.git at master
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/luoxiu/Once.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$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
[3/9] Compiling Once TimesPredicate.swift
[4/9] Compiling Once Token.swift
[5/9] Compiling Once Scope.swift
[6/9] Compiling Once PersistentToken.swift
/host/spi-builder-workspace/Sources/Once/Lock.swift:20:29: error: cannot find 'DispatchSemaphore' in scope
18 | final class DispatchSemaphoreLock: NSLocking {
19 |
20 | private let semaphore = DispatchSemaphore(value: 1)
| `- error: cannot find 'DispatchSemaphore' in scope
21 |
22 | func lock() {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/9] Compiling Once Atom.swift
[8/9] Emitting module Once
/host/spi-builder-workspace/Sources/Once/Lock.swift:20:29: error: cannot find 'DispatchSemaphore' in scope
18 | final class DispatchSemaphoreLock: NSLocking {
19 |
20 | private let semaphore = DispatchSemaphore(value: 1)
| `- error: cannot find 'DispatchSemaphore' in scope
21 |
22 | func lock() {
[9/9] Compiling Once Lock.swift
/host/spi-builder-workspace/Sources/Once/Lock.swift:20:29: error: cannot find 'DispatchSemaphore' in scope
18 | final class DispatchSemaphoreLock: NSLocking {
19 |
20 | private let semaphore = DispatchSemaphore(value: 1)
| `- error: cannot find 'DispatchSemaphore' in scope
21 |
22 | func lock() {
BUILD FAILURE 6.3 wasm