Swift Package Index

Build Information

Failed to build EventDrivenSwift, reference 5.2.0 (951b5c), with Swift 6.3 for Wasm on 13 Apr 2026 08:49:29 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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/Flowduino/EventDrivenSwift.git
Reference: 5.2.0
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/Flowduino/EventDrivenSwift
 * tag               5.2.0      -> FETCH_HEAD
HEAD is now at 951b5c8 Merge pull request #7 from Flowduino/custom-event-filtering
Cloned https://github.com/Flowduino/EventDrivenSwift.git
Revision (git rev-parse @):
951b5c841868987a6d4f7977694d74eb72e7c96a
SUCCESS checkout https://github.com/Flowduino/EventDrivenSwift.git at 5.2.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/Flowduino/EventDrivenSwift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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/Flowduino/ThreadSafeSwift.git
Fetching https://github.com/Flowduino/Observable.git
[1/53] Fetching threadsafeswift
[54/169] Fetching threadsafeswift, observable
Fetched https://github.com/Flowduino/ThreadSafeSwift.git from cache (0.29s)
Fetched https://github.com/Flowduino/Observable.git from cache (0.29s)
Computing version for https://github.com/Flowduino/Observable.git
Computed https://github.com/Flowduino/Observable.git at 2.0.0 (1.09s)
Computing version for https://github.com/Flowduino/ThreadSafeSwift.git
Computed https://github.com/Flowduino/ThreadSafeSwift.git at 1.1.0 (0.58s)
Creating working copy for https://github.com/Flowduino/Observable.git
Working copy of https://github.com/Flowduino/Observable.git resolved at 2.0.0
Creating working copy for https://github.com/Flowduino/ThreadSafeSwift.git
Working copy of https://github.com/Flowduino/ThreadSafeSwift.git resolved at 1.1.0
Building for debugging...
[0/4] Write sources
[3/4] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/6] Emitting module ThreadSafeSwift
/host/spi-builder-workspace/.build/checkouts/ThreadSafeSwift/Sources/ThreadSafeSwift/ThreadSafeSemaphore.swift:17:23: error: cannot find 'DispatchSemaphore' in scope
15 | @propertyWrapper
16 | public struct ThreadSafeSemaphore<T> {
17 |     public var lock = DispatchSemaphore(value: 1)
   |                       `- error: cannot find 'DispatchSemaphore' in scope
18 |     private var value: T
19 |
[6/6] Compiling ThreadSafeSwift ThreadSafeSemaphore.swift
/host/spi-builder-workspace/.build/checkouts/ThreadSafeSwift/Sources/ThreadSafeSwift/ThreadSafeSemaphore.swift:17:23: error: cannot find 'DispatchSemaphore' in scope
15 | @propertyWrapper
16 | public struct ThreadSafeSemaphore<T> {
17 |     public var lock = DispatchSemaphore(value: 1)
   |                       `- error: cannot find 'DispatchSemaphore' in scope
18 |     private var value: T
19 |
/host/spi-builder-workspace/.build/checkouts/ThreadSafeSwift/Sources/ThreadSafeSwift/ThreadSafeSemaphore.swift:52:31: error: cannot find 'DispatchTime' in scope
50 |      */
51 |     mutating public func withTryLock(_ onLock: @escaping (_ value: inout T) -> (), _ onCannotLock: @escaping ()->()) {
52 |         if lock.wait(timeout: DispatchTime.now()) == .success { // If we are able to acquire the lock...
   |                               `- error: cannot find 'DispatchTime' in scope
53 |             onLock(&value) // Invoke the closure within the lock
54 |             lock.signal() // Release the Lock
BUILD FAILURE 6.3 wasm