Starscream – Build Information – Swift Package Index

Build Information

Failed to build Starscream, reference 4.0.8 (c6bfd1), with Swift 6.4 for Wasm on 20 Sep 2026 09:37:33 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/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/daltoniam/Starscream.git
Reference: 4.0.8
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/daltoniam/Starscream
 * tag               4.0.8      -> FETCH_HEAD
HEAD is now at c6bfd1a chore: update release tooling
Cloned https://github.com/daltoniam/Starscream.git
Revision (git rev-parse @):
c6bfd1af48efcc9a9ad203665db12375ba6b145a
SUCCESS checkout https://github.com/daltoniam/Starscream.git at 4.0.8
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/daltoniam/Starscream.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/apple/swift-nio-zlib-support.git
[1/15] Fetching swift-nio-zlib-support
Fetched https://github.com/apple/swift-nio-zlib-support.git (0.45s)
Computing version for https://github.com/apple/swift-nio-zlib-support.git
Computed https://github.com/apple/swift-nio-zlib-support.git at 1.0.0 (1.52s)
Creating working copy for https://github.com/apple/swift-nio-zlib-support.git
Working copy of https://github.com/apple/swift-nio-zlib-support.git resolved at 1.0.0
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: 'spi-builder-workspace': dependency 'swift-nio-zlib-support' is not used by any target
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: 'spi-builder-workspace': dependency 'swift-nio-zlib-support' is not used by any target
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/Sources/Info.plist
Building for debugging...
[Pre-planning 1 / 96]
[23 / 32] Starscream_Starscream
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/Compression/WSCompression.swift:30:8: [1;31merror: [1;39mno such module 'zlib'[0;0m
 [0;36m28 |[0;0m
 [0;36m29 |[0;0m import Foundation
 [0;36m30 |[0;0m import zlib
    [0;36m|[0;0m        `- [1;31merror: [1;39mno such module 'zlib'[0;0m
 [0;36m31 |[0;0m
 [0;36m32 |[0;0m public class WSCompression: CompressionHandler {
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/DerivedSources/resource_bundle_accessor.swift /host/spi-builder-workspace/Sources/Compression/Compression.swift /host/spi-builder-workspace/Sources/Compression/WSCompression.swift /host/spi-builder-workspace/Sources/DataBytes/Data+Extensions.swift /host/spi-builder-workspace/Sources/Engine/Engine.swift /host/spi-builder-workspace/Sources/Engine/NativeEngine.swift /host/spi-builder-workspace/Sources/Engine/WSEngine.swift /host/spi-builder-workspace/Sources/Framer/FoundationHTTPHandler.swift /host/spi-builder-workspace/Sources/Framer/FoundationHTTPServerHandler.swift /host/spi-builder-workspace/Sources/Framer/FrameCollector.swift /host/spi-builder-workspace/Sources/Framer/Framer.swift /host/spi-builder-workspace/Sources/Framer/HTTPHandler.swift /host/spi-builder-workspace/Sources/Framer/StringHTTPHandler.swift /host/spi-builder-workspace/Sources/Security/FoundationSecurity.swift /host/spi-builder-workspace/Sources/Security/Security.swift /host/spi-builder-workspace/Sources/Server/Server.swift /host/spi-builder-workspace/Sources/Server/WebSocketServer.swift /host/spi-builder-workspace/Sources/Starscream/WebSocket.swift /host/spi-builder-workspace/Sources/Transport/FoundationTransport.swift /host/spi-builder-workspace/Sources/Transport/TCPTransport.swift /host/spi-builder-workspace/Sources/Transport/Transport.swift -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-nio-zlib-support/module.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Starscream -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Starscream_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Modules/Starscream.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Modules/Starscream.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Starscream-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Starscream-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Starscream-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Starscream.build/Debug-webassembly-wasm32/Starscream-t.build/Objects-normal/wasm32/Modules/Starscream.swiftmodule
[33 / 41] Starscream
error: Build failed
BUILD FAILURE 6.4 wasm