Swift Package IndexBuild Information
Failed to build MicroExpress, reference 0.5.4 (08760d), with Swift 6.4 for Wasm on 18 Sep 2026 14:57:43 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/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>&1Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/NozeIO/MicroExpress.git
Reference: 0.5.4
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/NozeIO/MicroExpress
* tag 0.5.4 -> FETCH_HEAD
HEAD is now at 08760d0 Update README.md
Cloned https://github.com/NozeIO/MicroExpress.git
Revision (git rev-parse @):
08760d00f09f1cc17334290d97fdfc4bf04ea5a8
SUCCESS checkout https://github.com/NozeIO/MicroExpress.git at 0.5.4
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Build
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Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/NozeIO/MicroExpress.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$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.git
Fetching https://github.com/AlwaysRightInstitute/mustache.git
[1/585] Fetching mustache
Fetched https://github.com/AlwaysRightInstitute/mustache.git (0.44s)
[1/86033] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git (3.45s)
Computing version for https://github.com/AlwaysRightInstitute/mustache.git
Computed https://github.com/AlwaysRightInstitute/mustache.git at 0.5.9 (3.65s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.37s)
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-collections.git
[1/1875] Fetching swift-atomics
[1876/8773] Fetching swift-atomics, swift-system
[8774/36093] Fetching swift-atomics, swift-system, swift-collections
Fetched https://github.com/apple/swift-system.git (0.66s)
[2149/29195] Fetching swift-atomics, swift-collections
Fetched https://github.com/apple/swift-atomics.git (1.23s)
Fetched https://github.com/apple/swift-collections.git (1.24s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (1.42s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.6.0 (0.30s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.8.1 (0.23s)
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
Creating working copy for https://github.com/AlwaysRightInstitute/mustache.git
Working copy of https://github.com/AlwaysRightInstitute/mustache.git resolved at 0.5.9
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.103.0
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.6.0
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
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 748]
[Planning deferred tasks]
[126 / 267] NIOConcurrencyHelpers
[126 / 267] _NIODataStructures
[137 / 267] NIOConcurrencyHelpers
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line: cd /host
/host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/MustacheParser.swift:215:15: [1;31merror: [1;39mno such module 'Darwin'[0;0m
[0;36m213 |[0;0m import func Glibc.memcpy
[0;36m214 |[0;0m #else
[0;36m215 |[0;0m import func Darwin.memcpy
[0;36m|[0;0m `- [1;31merror: [1;39mno such module 'Darwin'[0;0m
[0;36m216 |[0;0m #endif
[0;36m217 |[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/mustache/Sources/mustache/HTMLEscape.swift /host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/Helpers.swift /host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/MustacheNode.swift /host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/MustacheParser.swift /host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/MustacheRenderingContext.swift /host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/Mustacheable.swift /host/spi-builder-workspace/.build/checkouts/mustache/Sources/mustache/SimpleKVC.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/mustache.build/Debug-webassembly-wasm32/mustache-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name mustache -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/mustache_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/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/Modules/mustache.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/Modules/mustache.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/mustache-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/mustache-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/mustache-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/mustache.build/Debug-webassembly-wasm32/mustache-t.build/Objects-normal/wasm32/Modules/mustache.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm