Swift Package IndexBuild Information
Failed to build javascript-core-extras, reference 0.1.1 (b7cb62), with Swift 6.3 for Wasm on 17 Apr 2026 03:08:12 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/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
========================================
Clone URL: https://github.com/mhayes853/javascript-core-extras.git
Reference: 0.1.1
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/mhayes853/javascript-core-extras
* tag 0.1.1 -> FETCH_HEAD
HEAD is now at b7cb62f Merge pull request #3 from mhayes853/fix-tv-os-build
Cloned https://github.com/mhayes853/javascript-core-extras.git
Revision (git rev-parse @):
b7cb62f776e838ce3f6a3e33ac025c7850bc2566
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mhayes853/javascript-core-extras.git at 0.1.1
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/mhayes853/javascript-core-extras.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$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/pointfreeco/xctest-dynamic-overlay
Fetching https://github.com/pointfreeco/swift-snapshot-testing
[1/5723] Fetching xctest-dynamic-overlay
[5724/21776] Fetching xctest-dynamic-overlay, swift-snapshot-testing
Fetching https://github.com/pointfreeco/swift-custom-dump
Fetching https://github.com/pointfreeco/swift-clocks
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.90s)
[803/16053] Fetching swift-snapshot-testing
[804/21517] Fetching swift-snapshot-testing, swift-custom-dump
[3905/22834] Fetching swift-snapshot-testing, swift-custom-dump, swift-clocks
Fetched https://github.com/pointfreeco/swift-clocks from cache (0.43s)
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (0.43s)
[2569/16053] Fetching swift-snapshot-testing
Fetched https://github.com/pointfreeco/swift-snapshot-testing from cache (3.86s)
Computing version for https://github.com/pointfreeco/swift-clocks
Computed https://github.com/pointfreeco/swift-clocks at 1.0.6 (4.28s)
Fetching https://github.com/pointfreeco/swift-concurrency-extras
[1/956] Fetching swift-concurrency-extras
Fetched https://github.com/pointfreeco/swift-concurrency-extras from cache (0.29s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.5.0 (0.70s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.3.2 (0.48s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing
Computed https://github.com/pointfreeco/swift-snapshot-testing at 1.19.2 (0.45s)
Fetching https://github.com/swiftlang/swift-syntax
[1/74985] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax from cache (7.06s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 603.0.0 (10.10s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.9.0 (0.77s)
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 1.3.2
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 603.0.0
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing
Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.19.2
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.9.0
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.5.0
Creating working copy for https://github.com/pointfreeco/swift-clocks
Working copy of https://github.com/pointfreeco/swift-clocks resolved at 1.0.6
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/603.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/603.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz (0.59s)
Building for debugging...
[0/22] Copying PrivacyInfo.xcprivacy
[1/22] Copying DOMException.js
[2/22] Copying FormData.js
[2/22] Copying Utils.js
[2/22] Copying fetch.js
[2/22] Copying Response.js
[2/22] Copying Request.js
[2/22] Copying HTTPOptions.js
[2/22] Copying HTTPBody.js
[2/22] Copying Crypto.js
[2/22] Copying Headers.js
[2/22] Copying AbortController.js
[12/22] Write sources
[16/22] Compiling _CJavaScriptCoreExtras JSCoreExtrasFileHandle.m
[17/22] Write swift-version-24593BA9C3E375BF.txt
[19/24] Emitting module IssueReportingPackageSupport
[20/24] Compiling IssueReportingPackageSupport _Test.swift
[21/25] Wrapping AST for IssueReportingPackageSupport for debugging
[23/48] Emitting module IssueReportingTestSupport
[24/48] Compiling IssueReporting TestContext.swift
[25/48] Compiling IssueReporting Unimplemented.swift
[26/50] Compiling IssueReporting WithExpectedIssue.swift
[27/50] Compiling IssueReporting WithIssueContext.swift
[28/50] Compiling IssueReporting XCTest.swift
[29/50] Compiling IssueReporting IsTesting.swift
[30/50] Compiling IssueReporting IssueReporter.swift
[31/50] Compiling IssueReporting BreakpointReporter.swift
[32/50] Compiling IssueReporting DefaultReporter.swift
[33/50] Compiling IssueReporting FatalErrorReporter.swift
[34/50] Compiling IssueReportingTestSupport SwiftTesting.swift
[35/50] Compiling IssueReportingTestSupport XCTest.swift
[36/51] Emitting module IssueReporting
[37/51] Compiling IssueReporting SwiftTesting.swift
[38/51] Compiling IssueReporting UncheckedSendable.swift
[39/51] Compiling IssueReporting Warn.swift
[40/51] Compiling IssueReporting IssueSeverity.swift
[41/51] Compiling IssueReporting ReportIssue.swift
[42/51] Compiling IssueReporting FailureObserver.swift
[43/51] Compiling IssueReporting LockIsolated.swift
[44/51] Compiling IssueReporting Rethrows.swift
[45/51] Compiling IssueReporting ErrorReporting.swift
[46/51] Compiling IssueReporting AppHostWarning.swift
[47/51] Compiling IssueReporting Deprecations.swift
[49/52] Wrapping AST for IssueReportingTestSupport for debugging
[50/53] Write Objects.LinkFileList
error: emit-module command failed with exit code 1 (use -v to see invocation)
error: dynamic libraries are unsupported for target 'wasm32-unknown-wasip1'
[51/53] Linking libIssueReportingTestSupport.wasm
error: cancelled
error: cancelled
[52/57] Emitting module JavaScriptCoreExtras
/host/spi-builder-workspace/Sources/JavaScriptCoreExtras/Blob/JSBlob.swift:1:24: error: no such module 'JavaScriptCore'
1 | @preconcurrency import JavaScriptCore
| `- error: no such module 'JavaScriptCore'
2 |
3 | // MARK: - JSBlob
BUILD FAILURE 6.3 wasm