SwiftPFFFT – Build Information – Swift Package Index

Build Information

Failed to build SwiftPFFFT, reference master (ba20b2), with Swift 6.4 for Wasm on 21 Sep 2026 10:18:57 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/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/jkl1337/SwiftPFFFT.git
Reference: master
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/jkl1337/SwiftPFFFT
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at ba20b23 fix CI
Cloned https://github.com/jkl1337/SwiftPFFFT.git
Revision (git rev-parse @):
ba20b23d265fd5a63d62655efa65b41b5a98edf4
SUCCESS checkout https://github.com/jkl1337/SwiftPFFFT.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/jkl1337/SwiftPFFFT.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$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-numerics
[1/6636] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics (0.55s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.1 (0.72s)
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.1.1
Building for debugging...
[Constructing description]
[Planning deferred tasks]
[48 / 81] _NumericsShims
In file included from /host/spi-builder-workspace/Sources/PFFFTLib/pffft.c:98:
[1m/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_float.h:68:13: [0m[0;1;35mwarning: [0m[1mbuilding float with simd disabled ! [-W#pragma-messages][0m
   68 | #    pragma message( [0;32m"building float with simd disabled !"[0m )[0m
      | [0;1;32m            ^
[0mIn file included from /host/spi-builder-workspace/Sources/PFFFTLib/pffft.c:98:
In file included from /host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_float.h:73:
[1m/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_float.h:42:9: [0m[0;1;35mwarning: [0m[1m/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_float.h: float SCALAR4 macros are defined [-W#pragma-messages][0m
   42 | #pragma message( __FILE__ [0;32m": float SCALAR4 macros are defined"[0m )[0m
      | [0;1;32m        ^
[0m2 warnings generated.
[50 / 81] RealModule
In file included from /host/spi-builder-workspace/Sources/PFFFTLib/pffft_double.c:110:
[1m/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_double.h:68:13: [0m[0;1;35mwarning: [0m[1mbuilding double with simd disabled ! [-W#pragma-messages][0m
   68 | #    pragma message( [0;32m"building double with simd disabled !"[0m )[0m
      | [0;1;32m            ^
[0mIn file included from /host/spi-builder-workspace/Sources/PFFFTLib/pffft_double.c:110:
In file included from /host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_double.h:73:
[1m/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_double.h:42:9: [0m[0;1;35mwarning: [0m[1m/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_double.h: double SCALAR4 macros are defined [-W#pragma-messages][0m
   42 | #pragma message( __FILE__ [0;32m": double SCALAR4 macros are defined"[0m )[0m
      | [0;1;32m        ^
[0m2 warnings generated.
[52 / 81] RealModule
[58 / 82] PFFFTLib
[61 / 91] ComplexModule
[66 / 91] ComplexModule
[75 / 94] RealModule
[90 / 103] ComplexModule
[96 / 104] PFFFT
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:17: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
[0;36m13 |[0;0m
[0;36m14 |[0;0m     var cache: [CacheKey: Setup?] = [:]
[0;36m15 |[0;0m     let queue = [4;39mDispatchQueue[0;0m(label: String(describing: SetupCache.self), attributes: .concurrent)
   [0;36m|[0;0m                 `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
[0;36m16 |[0;0m
[0;36m17 |[0;0m     public init() {}
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/PFFFT/Buffer.swift /host/spi-builder-workspace/Sources/PFFFT/FFT.swift /host/spi-builder-workspace/Sources/PFFFT/PFFFT.swift /host/spi-builder-workspace/Sources/PFFFT/Setup.swift /host/spi-builder-workspace/Sources/PFFFT/SetupCache.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_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature AccessLevelOnImport -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-numerics/Sources/_NumericsShims/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-webassembly-wasm32/PFFFTLib.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/checkouts/swift-numerics/Sources/_NumericsShims/include -Xcc -I/host/spi-builder-workspace/Sources/PFFFTLib/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name PFFFT -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/PFFFT_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/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/Modules/PFFFT.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/Modules/PFFFT.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/PFFFT-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/PFFFT-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/PFFFT-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftPFFFT.build/Debug-webassembly-wasm32/PFFFT-t.build/Objects-normal/wasm32/Modules/PFFFT.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm