Swift Package Index

Build Information

Failed to build swift-uwp, reference main (9d9f48), with Swift 6.1 for Wasm on 25 Jun 2026 01:31:53 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/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4071e0796c748d991a0123890d2f0ecadc8fcc8c
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/moreSwift/swift-uwp.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/moreSwift/swift-uwp
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 9d9f48b Add Windows.Storage.ApplicationData bindings
Cloned https://github.com/moreSwift/swift-uwp.git
Revision (git rev-parse @):
9d9f48b8abea8d4edbc3f711eb220fdadd77ebb0
SUCCESS checkout https://github.com/moreSwift/swift-uwp.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/moreSwift/swift-uwp.git
https://github.com/moreSwift/swift-uwp.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:87277f180438764e0763769462b4e00642129a1e8364b1cdaa91f88fde66785b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
Fetching https://github.com/moreSwift/swift-windowsfoundation
Fetching https://github.com/moreSwift/swift-cwinrt
[1/500] Fetching swift-cwinrt
[51/614] Fetching swift-cwinrt, swift-windowsfoundation
Fetched https://github.com/moreSwift/swift-windowsfoundation from cache (0.61s)
[70/500] Fetching swift-cwinrt
Fetched https://github.com/moreSwift/swift-cwinrt from cache (0.84s)
Computing version for https://github.com/moreSwift/swift-windowsfoundation
Computed https://github.com/moreSwift/swift-windowsfoundation at 0.1.0 (1.05s)
Computing version for https://github.com/moreSwift/swift-cwinrt
Computed https://github.com/moreSwift/swift-cwinrt at 0.1.2 (0.92s)
Creating working copy for https://github.com/moreSwift/swift-cwinrt
Working copy of https://github.com/moreSwift/swift-cwinrt resolved at 0.1.2
Creating working copy for https://github.com/moreSwift/swift-windowsfoundation
Working copy of https://github.com/moreSwift/swift-windowsfoundation resolved at 0.1.0
Building for debugging...
[0/14] Write sources
[3/14] Compiling CWinRT shim.c
[4/14] Write swift-version-24593BA9C3E375BF.txt
[6/16] Compiling SwiftDummy Dummy.swift
[7/16] Emitting module SwiftDummy
[8/17] Wrapping AST for SwiftDummy for debugging
[9/17] Write Objects.LinkFileList
error: dynamic libraries are unsupported for target 'wasm32-unknown-wasi'
[10/17] Linking libCWinRT.wasm
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/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:87277f180438764e0763769462b4e00642129a1e8364b1cdaa91f88fde66785b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
[0/1] Planning build
Building for debugging...
[0/10] Write swift-version-24593BA9C3E375BF.txt
[2/12] Emitting module SwiftDummy
[3/12] Compiling SwiftDummy Dummy.swift
[4/12] Write Objects.LinkFileList
error: dynamic libraries are unsupported for target 'wasm32-unknown-wasi'
[5/12] Linking libCWinRT.wasm
BUILD FAILURE 6.1 wasm