Swift Package IndexBuild Information
Failed to build Observation, reference main (9e04c7), with Swift 6.3 for Wasm on 12 Apr 2026 12:49:00 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/0xLet/Observation.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/0xLet/Observation
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 9e04c70 Merge pull request #2 from 0xLeif/develop
Cloned https://github.com/0xLet/Observation.git
Revision (git rev-parse @):
9e04c7056782c73a8f2ad6cea43f71a1c5a9700b
SUCCESS checkout https://github.com/0xLet/Observation.git at main
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/0xLet/Observation.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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
Fetching https://github.com/0xLeif/Chain
[1/119] Fetching chain
Fetched https://github.com/0xLeif/Chain from cache (0.89s)
Computing version for https://github.com/0xLeif/Chain
Computed https://github.com/0xLeif/Chain at 0.3.0 (1.43s)
Fetching https://github.com/0xLeif/E.num
[1/130] Fetching e.num
Fetched https://github.com/0xLeif/E.num from cache (0.23s)
Computing version for https://github.com/0xLeif/E.num
Computed https://github.com/0xLeif/E.num at 0.3.0 (0.73s)
Creating working copy for https://github.com/0xLeif/E.num
Working copy of https://github.com/0xLeif/E.num resolved at 0.3.0
Creating working copy for https://github.com/0xLeif/Chain
Working copy of https://github.com/0xLeif/Chain resolved at 0.3.0
Building for debugging...
[0/4] Write sources
[3/4] Write swift-version-24593BA9C3E375BF.txt
[5/9] Compiling E State.swift
[6/9] Compiling E Function.swift
[7/9] Emitting module E
[8/9] Compiling E Control.swift
[9/9] Compiling E Variable.swift
[11/12] Emitting module Chain
[12/12] Compiling Chain Chain.swift
/host/spi-builder-workspace/.build/checkouts/Chain/Sources/Chain/Chain.swift:44:13: error: cannot find 'DispatchQueue' in scope
42 | case .background(let action,
43 | let next):
44 | DispatchQueue.global().async {
| `- error: cannot find 'DispatchQueue' in scope
45 | let actionOutput: Variable = action.run(input) ?? Variable.void
46 |
/host/spi-builder-workspace/.build/checkouts/Chain/Sources/Chain/Chain.swift:47:17: error: cannot find 'DispatchQueue' in scope
45 | let actionOutput: Variable = action.run(input) ?? Variable.void
46 |
47 | DispatchQueue.main.async {
| `- error: cannot find 'DispatchQueue' in scope
48 | _ = next.run(name: name,
49 | input: actionOutput,
BUILD FAILURE 6.3 wasm