Swift Package IndexBuild Information
Failed to build SwiftyTailwind, reference 0.5.0 (d2bc66), with Swift 6.4 for Wasm on 19 Sep 2026 20:28:33 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886769-2":/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>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tuist/SwiftyTailwind.git
Reference: 0.5.0
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/tuist/SwiftyTailwind
* tag 0.5.0 -> FETCH_HEAD
HEAD is now at d2bc66e Merge pull request #16 from jagreenwood/aarch64
Cloned https://github.com/tuist/SwiftyTailwind.git
Revision (git rev-parse @):
d2bc66eb6b993bc2d755d64e1fc7f59359c265f7
SUCCESS checkout https://github.com/tuist/SwiftyTailwind.git at 0.5.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/tuist/SwiftyTailwind.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-2":/host -w "$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-log.git
Fetching https://github.com/swift-server/async-http-client.git
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Computed https://github.com/apple/swift-log.git at 1.15.1 (0.22s)
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Computing version for https://github.com/apple/swift-service-context.git
Computed https://github.com/apple/swift-service-context.git at 1.3.0 (3.73s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (0.19s)
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Computing version for https://github.com/apple/swift-configuration.git
Computed https://github.com/apple/swift-configuration.git at 1.2.0 (1.67s)
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Computed https://github.com/apple/swift-atomics.git at 1.3.1 (0.16s)
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Computed https://github.com/apple/swift-numerics.git at 1.1.1 (0.14s)
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Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.33s)
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Computed https://github.com/swift-server/swift-service-lifecycle at 2.12.0 (0.17s)
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Computed https://github.com/apple/swift-nio-ssl.git at 2.37.5 (0.22s)
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Computing version for https://github.com/apple/swift-http-structured-headers.git
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Computed https://github.com/apple/swift-asn1.git at 1.7.3 (0.21s)
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Computed https://github.com/apple/swift-crypto.git at 4.5.2 (1.56s)
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Working copy of https://github.com/apple/swift-service-context.git resolved at 1.3.0
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Creating working copy for https://github.com/apple/swift-nio-transport-services.git
Working copy of https://github.com/apple/swift-nio-transport-services.git resolved at 1.28.0
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Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
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Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 2.37.5
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Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
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Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
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Working copy of https://github.com/apple/swift-distributed-tracing.git resolved at 1.5.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.8.1
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Working copy of https://github.com/apple/swift-nio.git resolved at 2.103.0
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Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.5
Creating working copy for https://github.com/swift-server/swift-service-lifecycle
Working copy of https://github.com/swift-server/swift-service-lifecycle resolved at 2.12.0
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Working copy of https://github.com/apple/swift-nio-http2.git resolved at 1.46.0
Building for debugging...
[Computing dependencies]
[Constructing description]
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[Constructing 2995 / 3560]
[Starting]
[46 / 875] _NIOBase64
[212 / 879]
[227 / 891] TSCLibc
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line: cd /host
/host/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCLibc/libc.swift:19:19: [1;31merror: [1;39mno such module 'Darwin.C'[0;0m
[0;36m17 |[0;0m @_exported import WinSDK
[0;36m18 |[0;0m #else
[0;36m19 |[0;0m @_exported import Darwin.C
[0;36m|[0;0m `- [1;31merror: [1;39mno such module 'Darwin.C'[0;0m
[0;36m20 |[0;0m #endif
[0;36m21 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCLibc/libc.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 -suppress-warnings -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -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 -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/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name TSCLibc -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/TSCLibc_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/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/Modules/TSCLibc.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/Modules/TSCLibc.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/TSCLibc-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/TSCLibc-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/TSCLibc-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-tools-support-core.build/Debug-webassembly-wasm32/TSCLibc-t.build/Objects-normal/wasm32/Modules/TSCLibc.swiftmodule
[235 / 920] NIOConcurrencyHelpers
error: Build failed
BUILD FAILURE 6.4 wasm