Swift Package Index

Build Information

Failed to build Prex, reference master (d6c198), with Swift 6.3 for Wasm on 20 Apr 2026 17:23:17 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/marty-suzuki/Prex.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/marty-suzuki/Prex
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at d6c198f update podspec
Cloned https://github.com/marty-suzuki/Prex.git
Revision (git rev-parse @):
d6c198fc96e0155f658be55a1798aaa287acdc1b
SUCCESS checkout https://github.com/marty-suzuki/Prex.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/marty-suzuki/Prex.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/13] Compiling Prex View.swift
[4/13] Compiling Prex Mutation.swift
[5/14] Compiling Prex StateChange.swift
[6/14] Compiling Prex State.swift
[7/14] Compiling Prex Subscription.swift
[8/14] Compiling Prex Presenter.swift
/host/spi-builder-workspace/Sources/Prex/Presenter.swift:42:16: error: cannot find 'Thread' in scope
40 |         let _view = _WeakView(view)
41 |         self.reflectInMain = { [_view] change in
42 |             if Thread.isMainThread {
   |                `- error: cannot find 'Thread' in scope
43 |                 _view.reflect(change: change)
44 |             } else {
/host/spi-builder-workspace/Sources/Prex/Presenter.swift:45:17: error: cannot find 'DispatchQueue' in scope
43 |                 _view.reflect(change: change)
44 |             } else {
45 |                 DispatchQueue.main.async {
   |                 `- error: cannot find 'DispatchQueue' in scope
46 |                     _view.reflect(change: change)
47 |                 }
[9/14] Compiling Prex Action.swift
[10/14] Compiling Prex Dispatcher.swift
[11/14] Compiling Prex Flux.swift
[12/14] Compiling Prex Store.swift
[13/14] Emitting module Prex
[14/14] Compiling Prex PubSub.swift
BUILD FAILURE 6.3 wasm