Swift Package IndexBuild Information
Failed to build SwiftPFFFT, reference 0.1.1 (a0628a), with Swift 6.3 for Wasm on 15 Apr 2026 06:00:03 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/jkl1337/SwiftPFFFT.git
Reference: 0.1.1
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
* tag 0.1.1 -> FETCH_HEAD
HEAD is now at a0628a5 Add CI
Cloned https://github.com/jkl1337/SwiftPFFFT.git
Revision (git rev-parse @):
a0628a5725023b188c3798f7feaeda8cf2547ffd
SUCCESS checkout https://github.com/jkl1337/SwiftPFFFT.git at 0.1.1
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/jkl1337/SwiftPFFFT.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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
Fetching https://github.com/apple/swift-numerics
[1/6416] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics from cache (0.45s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.1 (0.80s)
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...
[0/9] Write sources
[4/9] Compiling _NumericsShims _NumericsShims.c
[5/9] Compiling PFFFTLib pffft_common.c
[6/9] Write swift-version-24593BA9C3E375BF.txt
In file included from /host/spi-builder-workspace/Sources/PFFFTLib/pffft.c:98:
/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_float.h:68:13: warning: building float with simd disabled ! [-W#pragma-messages]
68 | # pragma message( "building float with simd disabled !" )
| ^
In 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:
/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_float.h:42:9: warning: /host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_float.h: float SCALAR4 macros are defined [-W#pragma-messages]
42 | #pragma message( __FILE__ ": float SCALAR4 macros are defined" )
| ^
2 warnings generated.
[7/20] Compiling PFFFTLib pffft.c
[9/20] Compiling RealModule RealFunctions.swift
[10/21] Compiling RealModule Float80+Real.swift
[11/21] Compiling RealModule Real.swift
[12/21] Compiling RealModule RelaxedArithmetic.swift
[13/21] Compiling RealModule AlgebraicField.swift
[14/21] Compiling RealModule ApproximateEquality.swift
[15/21] Compiling RealModule AugmentedArithmetic.swift
[16/21] Compiling RealModule Double+Real.swift
[17/21] Compiling RealModule ElementaryFunctions.swift
[18/21] Compiling RealModule Float+Real.swift
[19/21] Compiling RealModule Float16+Real.swift
[20/21] Emitting module RealModule
In file included from /host/spi-builder-workspace/Sources/PFFFTLib/pffft_double.c:110:
/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_double.h:68:13: warning: building double with simd disabled ! [-W#pragma-messages]
68 | # pragma message( "building double with simd disabled !" )
| ^
In 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:
/host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_double.h:42:9: warning: /host/spi-builder-workspace/Sources/PFFFTLib/simd/pf_scalar_double.h: double SCALAR4 macros are defined [-W#pragma-messages]
42 | #pragma message( __FILE__ ": double SCALAR4 macros are defined" )
| ^
2 warnings generated.
[21/33] Compiling PFFFTLib pffft_double.c
[23/33] Compiling ComplexModule Complex+StringConvertible.swift
[24/34] Compiling ComplexModule Polar.swift
[25/34] Compiling ComplexModule Complex+Numeric.swift
[26/34] Compiling ComplexModule Complex+Hashable.swift
[27/34] Compiling ComplexModule Complex+IntegerLiteral.swift
[28/34] Compiling ComplexModule Scale.swift
[29/34] Compiling ComplexModule Complex.swift
[30/34] Emitting module ComplexModule
[31/34] Compiling ComplexModule Complex+AdditiveArithmetic.swift
[32/34] Compiling ComplexModule Complex+AlgebraicField.swift
[33/34] Compiling ComplexModule Complex+Codable.swift
[34/34] Compiling ComplexModule Complex+ElementaryFunctions.swift
[36/37] Emitting module Numerics
[37/37] Compiling Numerics Numerics.swift
[39/44] Compiling PFFFT Setup.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[40/44] Compiling PFFFT PFFFT.swift
[41/44] Compiling PFFFT Buffer.swift
[42/44] Emitting module PFFFT
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:17: error: cannot find 'DispatchQueue' in scope
13 |
14 | var cache: [CacheKey: Setup?] = [:]
15 | let queue = DispatchQueue(label: String(describing: SetupCache.self), attributes: .concurrent)
| `- error: cannot find 'DispatchQueue' in scope
16 |
17 | public init() {}
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:88: error: cannot infer contextual base in reference to member 'concurrent'
13 |
14 | var cache: [CacheKey: Setup?] = [:]
15 | let queue = DispatchQueue(label: String(describing: SetupCache.self), attributes: .concurrent)
| `- error: cannot infer contextual base in reference to member 'concurrent'
16 |
17 | public init() {}
[43/44] Compiling PFFFT FFT.swift
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:17: error: cannot find 'DispatchQueue' in scope
13 |
14 | var cache: [CacheKey: Setup?] = [:]
15 | let queue = DispatchQueue(label: String(describing: SetupCache.self), attributes: .concurrent)
| `- error: cannot find 'DispatchQueue' in scope
16 |
17 | public init() {}
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:88: error: cannot infer contextual base in reference to member 'concurrent'
13 |
14 | var cache: [CacheKey: Setup?] = [:]
15 | let queue = DispatchQueue(label: String(describing: SetupCache.self), attributes: .concurrent)
| `- error: cannot infer contextual base in reference to member 'concurrent'
16 |
17 | public init() {}
[44/44] Compiling PFFFT SetupCache.swift
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:17: error: cannot find 'DispatchQueue' in scope
13 |
14 | var cache: [CacheKey: Setup?] = [:]
15 | let queue = DispatchQueue(label: String(describing: SetupCache.self), attributes: .concurrent)
| `- error: cannot find 'DispatchQueue' in scope
16 |
17 | public init() {}
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:15:88: error: cannot infer contextual base in reference to member 'concurrent'
13 |
14 | var cache: [CacheKey: Setup?] = [:]
15 | let queue = DispatchQueue(label: String(describing: SetupCache.self), attributes: .concurrent)
| `- error: cannot infer contextual base in reference to member 'concurrent'
16 |
17 | public init() {}
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:25:32: error: cannot infer contextual base in reference to member 'barrier'
23 | }
24 | if setup == nil {
25 | queue.sync(flags: .barrier) {
| `- error: cannot infer contextual base in reference to member 'barrier'
26 | let key = CacheKey(n: n, type: type)
27 | setup = cache[key]
/host/spi-builder-workspace/Sources/PFFFT/SetupCache.swift:40:28: error: cannot infer contextual base in reference to member 'barrier'
38 |
39 | public func clear() {
40 | queue.sync(flags: .barrier) {
| `- error: cannot infer contextual base in reference to member 'barrier'
41 | cache.removeAll()
42 | }
BUILD FAILURE 6.3 wasm