Swift Package IndexBuild Information
Failed to build swift-ass-renderer, reference main (28919f), with Swift 6.3 for Wasm on 15 Apr 2026 12:17:36 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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>&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/mihai8804858/swift-ass-renderer.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/mihai8804858/swift-ass-renderer
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 28919f6 Fix package manifest for Swift < 6.0
Cloned https://github.com/mihai8804858/swift-ass-renderer.git
Revision (git rev-parse @):
28919f6b5ddd896d327b0283f8d97624902236e6
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mihai8804858/swift-ass-renderer.git at main
========================================
Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/mihai8804858/swift-ass-renderer.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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/mihai8804858/swift-snapshot-testing
[1/3413] Fetching swift-snapshot-testing
Fetched https://github.com/mihai8804858/swift-snapshot-testing from cache (0.85s)
Fetching https://github.com/swiftlang/swift-syntax
Fetching https://github.com/mihai8804858/swift-libass
Fetching https://github.com/pointfreeco/combine-schedulers
[1/2569] Fetching combine-schedulers
[824/3471] Fetching combine-schedulers, swift-libass
Fetched https://github.com/pointfreeco/combine-schedulers from cache (0.35s)
[55/902] Fetching swift-libass
[597/75874] Fetching swift-libass, swift-syntax
Fetched https://github.com/mihai8804858/swift-libass from cache (4.65s)
Fetched https://github.com/swiftlang/swift-syntax from cache (4.68s)
Computing version for https://github.com/pointfreeco/combine-schedulers
Computed https://github.com/pointfreeco/combine-schedulers at 1.1.0 (5.18s)
Fetching https://github.com/OpenCombine/OpenCombine.git
Fetching https://github.com/pointfreeco/swift-concurrency-extras
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
[1/956] Fetching swift-concurrency-extras
[957/9240] Fetching swift-concurrency-extras, opencombine
[1869/14963] Fetching swift-concurrency-extras, opencombine, xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/swift-concurrency-extras from cache (0.73s)
Fetched https://github.com/OpenCombine/OpenCombine.git from cache (0.74s)
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.85s)
Computing version for https://github.com/OpenCombine/OpenCombine.git
Computed https://github.com/OpenCombine/OpenCombine.git at 0.14.0 (3.33s)
Computing version for https://github.com/mihai8804858/swift-libass
Computed https://github.com/mihai8804858/swift-libass at 1.4.0 (0.59s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.3.2 (0.40s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.9.0 (0.42s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 600.0.1 (0.68s)
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/mihai8804858/swift-libass
Working copy of https://github.com/mihai8804858/swift-libass resolved at 1.4.0
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/mihai8804858/swift-snapshot-testing
Working copy of https://github.com/mihai8804858/swift-snapshot-testing resolved at main (4ee19ec)
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 600.0.1
Creating working copy for https://github.com/OpenCombine/OpenCombine.git
Working copy of https://github.com/OpenCombine/OpenCombine.git resolved at 0.14.0
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 1.1.0
Building for debugging...
[0/10] Copying PrivacyInfo.xcprivacy
[2/10] Write sources
[8/10] Write swift-version-24593BA9C3E375BF.txt
[10/26] Emitting module IssueReportingPackageSupport
[11/26] Compiling IssueReportingPackageSupport _Test.swift
[13/27] Emitting module ConcurrencyExtras
[14/28] Compiling ConcurrencyExtras MainSerialExecutor.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[15/28] Emitting module SwiftLibass
/host/spi-builder-workspace/.build/checkouts/swift-libass/Sources/SwiftLibass.swift:1:19: error: no such module 'libass'
1 | @_exported import libass
| `- error: no such module 'libass'
2 |
[16/48] Compiling ConcurrencyExtras UncheckedSendable.swift
[17/48] Compiling IssueReporting IssueSeverity.swift
[18/48] Compiling IssueReporting ReportIssue.swift
[19/50] Emitting module IssueReporting
[20/50] Compiling IssueReporting WithExpectedIssue.swift
[21/50] Compiling IssueReporting WithIssueContext.swift
[22/50] Compiling IssueReporting SwiftTesting.swift
[23/50] Compiling IssueReporting UncheckedSendable.swift
[24/50] Compiling IssueReporting Warn.swift
[25/50] Compiling ConcurrencyExtras LockIsolated.swift
[26/50] Compiling IssueReporting ErrorReporting.swift
[27/50] Compiling IssueReporting AppHostWarning.swift
[28/50] Compiling IssueReporting Deprecations.swift
[29/50] Compiling IssueReporting XCTest.swift
[30/50] Compiling IssueReporting IsTesting.swift
[31/50] Compiling IssueReporting IssueReporter.swift
[32/50] Compiling IssueReporting BreakpointReporter.swift
[33/50] Compiling IssueReporting DefaultReporter.swift
[34/50] Compiling IssueReporting FatalErrorReporter.swift
[35/50] Compiling IssueReporting TestContext.swift
[36/50] Compiling IssueReporting Unimplemented.swift
[37/50] Compiling SwiftLibass resource_bundle_accessor.swift
/host/spi-builder-workspace/.build/checkouts/swift-libass/Sources/SwiftLibass.swift:1:19: error: no such module 'libass'
1 | @_exported import libass
| `- error: no such module 'libass'
2 |
[38/50] Compiling SwiftLibass SwiftLibass.swift
/host/spi-builder-workspace/.build/checkouts/swift-libass/Sources/SwiftLibass.swift:1:19: error: no such module 'libass'
1 | @_exported import libass
| `- error: no such module 'libass'
2 |
[39/50] Compiling ConcurrencyExtras Result.swift
BUILD FAILURE 6.3 wasm