Swift Package IndexBuild Information
Failed to build swift-cactus, reference 2.4.0 (89d3cb), with Swift 6.3 for Wasm on 21 Apr 2026 15:55:04 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
========================================
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/swift-cactus.git
Reference: 2.4.0
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/swift-cactus
* tag 2.4.0 -> FETCH_HEAD
HEAD is now at 89d3cbe Merge pull request #140 from mhayes853/engine-v1.14
Cloned https://github.com/mhayes853/swift-cactus.git
Revision (git rev-parse @):
89d3cbe620138d140fb82d55e8fa6f2ec6efe4cb
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mhayes853/swift-cactus.git at 2.4.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/mhayes853/swift-cactus.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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
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Computed https://github.com/swiftlang/swift-syntax at 602.0.0 (3.09s)
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Computed https://github.com/mhayes853/swift-operation at 0.5.0 (0.63s)
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Computing version for https://github.com/apple/swift-atomics
Computed https://github.com/apple/swift-atomics at 1.3.0 (3.05s)
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Computed https://github.com/pointfreeco/swift-identified-collections at 1.1.1 (0.49s)
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Computed https://github.com/pointfreeco/swift-sharing at 2.8.0 (0.83s)
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Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.3.2 (1.23s)
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Computed https://github.com/pointfreeco/swift-dependencies at 1.12.0 (0.58s)
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Computed https://github.com/apple/swift-collections at 1.4.1 (0.74s)
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Computed https://github.com/swiftwasm/JavaScriptKit at 0.50.2 (0.58s)
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 1.2.0
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Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 1.12.0
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Working copy of https://github.com/pointfreeco/swift-sharing resolved at 2.8.0
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Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
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Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.9.0
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Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.5.0
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
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Working copy of https://github.com/mhayes853/swift-operation resolved at 0.5.0
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Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.4.6
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Working copy of https://github.com/pointfreeco/swift-clocks resolved at 1.0.6
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Working copy of https://github.com/pointfreeco/swift-macro-testing resolved at 0.6.5
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Working copy of https://github.com/apple/swift-atomics resolved at 1.3.0
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Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.19.2
Creating working copy for https://github.com/pointfreeco/swift-identified-collections
Working copy of https://github.com/pointfreeco/swift-identified-collections resolved at 1.1.1
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Working copy of https://github.com/apple/swift-collections resolved at 1.4.1
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Working copy of https://github.com/swiftlang/swift-syntax resolved at 602.0.0
Creating working copy for https://github.com/vapor-community/Zip
Working copy of https://github.com/vapor-community/Zip resolved at 2.2.7
Creating working copy for https://github.com/pointfreeco/swift-perception
Working copy of https://github.com/pointfreeco/swift-perception resolved at 2.0.10
Creating working copy for https://github.com/swiftwasm/JavaScriptKit
Working copy of https://github.com/swiftwasm/JavaScriptKit resolved at 0.50.2
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Working copy of https://github.com/OpenCombine/OpenCombine.git resolved at 0.14.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/602.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz
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[1/1] Compiling plugin Swift-DocC Preview
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[3/3] Compiling plugin BridgeJSCommandPlugin
[4/4] Compiling plugin BridgeJS
[5/5] Compiling plugin PackageToJS
Building for debugging...
[5/73] Write sources
[36/73] Compiling _SwiftSyntaxCShims PlatformMutex.c
/host/spi-builder-workspace/.build/checkouts/Zip/Sources/CMinizip/zip.c:25:10: fatal error: 'zlib.h' file not found
25 | #include "zlib.h"
| ^~~~~~~~
1 error generated.
[37/73] Compiling CMinizip zip.c
[37/73] Compiling CMinizip ioapi.c
[37/73] Compiling CMinizip zip.c
[37/73] Compiling CMinizip unzip.c
[37/73] Compiling CMinizip ioapi.c
[37/73] Compiling CMinizip crypt.c
[37/73] Compiling CMinizip unzip.c
[37/73] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.3 wasm