Swift Package IndexBuild Information
Failed to build MosaicKit, reference 1.15.0 (3c02b8), with Swift 6.2 for macOS (SPM) on 27 Oct 2026 18:42:40 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 5.1.3
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/fdenis75/MosaicKit.git
Reference: 1.15.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/fdenis75/MosaicKit
* tag 1.15.0 -> FETCH_HEAD
HEAD is now at 3c02b8e Merge pull request #86 from fdenis75/claude/lucid-volta-qov3v7
Cloned https://github.com/fdenis75/MosaicKit.git
Revision (git rev-parse @):
3c02b8e939642328b816c4d60572fe3aab17b070
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/fdenis75/MosaicKit.git at 1.15.0
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Build
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Selected platform: macosSpm
Swift version: 6.2
Building package at path: $PWD
https://github.com/fdenis75/MosaicKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun swift build --arch arm64
Building for debugging...
[0/14] Write sources
[5/14] Copying libwebpdemux.a
[6/14] Copying libwebp.a
[6/14] Copying MetalShaders.metal
[6/14] Copying libwebpmux.a
[7/14] Copying libsharpyuv.a
[10/14] Write swift-version--3CB7CFEC50E0D141.txt
[11/57] Compiling webpbridge WebpIncrementalDecoderResult.mm
[12/57] Compiling webpbridge WebpIncrementalDecoder.mm
[13/57] Compiling webpbridge WebpRGBAMultiplier.mm
[15/69] Compiling DominantColors UIImageExtension.swift
[16/69] Compiling DominantColors GradientColors.swift
[17/69] Compiling DominantColors ImageColorError.swift
[18/72] Emitting module DominantColors
[19/72] Compiling DominantColors RGB.swift
[20/72] Compiling DominantColors RGB255.swift
[21/72] Compiling DominantColors XYZ.swift
[22/72] Compiling DominantColors ComplementaryColor.swift
[23/72] Compiling DominantColors ContrastRatio.swift
[24/72] Compiling DominantColors DeltaEFormula.swift
[25/72] Compiling DominantColors Difference.swift
[26/72] Compiling DominantColors DominantColorAlgorithm.swift
[27/72] Compiling webp WebPAnimatedEncoder.swift
[28/72] Compiling webp WebPDecoder+Platform.swift
[29/72] Compiling webp CGImage+Util.swift
[30/72] Compiling webp InternalRawRepresentable.swift
[31/72] Compiling DominantColors ColorShade.swift
[32/72] Compiling DominantColors HSL.swift
[33/72] Compiling DominantColors Hex.swift
[34/72] Compiling DominantColors Lab.swift
[35/72] Compiling SJSAssetExportSession VideoFrameSource.swift
[36/72] Compiling SJSAssetExportSession VideoFrame.swift
[37/72] Compiling SJSAssetExportSession SampleWriter.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/SJSAssetExportSession/Sources/SJSAssetExportSession/SampleWriter.swift:283:17: error: sending 'input' risks causing data races [#SendingRisksDataRace]
280 | // A pool per sample: this loop can run for many frames before returning to the
281 | // queue, and whatever the artist autoreleases would otherwise pile up until then.
282 | let hasMore = autoreleasepool {
| `- note: access can happen concurrently
283 | writeNextSample(to: input, from: nextSample)
| |- error: sending 'input' risks causing data races [#SendingRisksDataRace]
| `- note: 'self'-isolated 'input' is captured by a actor-isolated closure. actor-isolated uses in closure may race against later actor-isolated uses
284 | }
285 | guard hasMore else { return false }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/SJSAssetExportSession/Sources/SJSAssetExportSession/SampleWriter.swift:283:17: error: sending 'nextSample' risks causing data races [#SendingRisksDataRace]
280 | // A pool per sample: this loop can run for many frames before returning to the
281 | // queue, and whatever the artist autoreleases would otherwise pile up until then.
282 | let hasMore = autoreleasepool {
| `- note: access can happen concurrently
283 | writeNextSample(to: input, from: nextSample)
| |- error: sending 'nextSample' risks causing data races [#SendingRisksDataRace]
| `- note: 'self'-isolated 'nextSample' is captured by a actor-isolated closure. actor-isolated uses in closure may race against later actor-isolated uses
284 | }
285 | guard hasMore else { return false }
[#SendingRisksDataRace]: <https://docs.swift.org/compiler/documentation/diagnostics/sending-risks-data-race>
[38/72] Compiling SJSAssetExportSession ExportSession.swift
[39/72] Compiling SJSAssetExportSession ExportSession+Error.swift
[40/72] Compiling SJSAssetExportSession CMTime+seconds.swift
[41/72] Compiling SJSAssetExportSession AudioOutputSettings.swift
[42/72] Compiling SJSAssetExportSession Array+Extensions.swift
[43/72] Emitting module SJSAssetExportSession
[44/72] Compiling SJSAssetExportSession VideoOutputSettings.swift
Fetching https://github.com/awxkee/webp.swift.git
Fetching https://github.com/DenDmitriev/DominantColors.git
Fetching https://github.com/samsonjs/SJSAssetExportSession.git
[1/542] Fetching sjsassetexportsession
[2/715] Fetching sjsassetexportsession, webp.swift
[175/1838] Fetching sjsassetexportsession, webp.swift, dominantcolors
Fetched https://github.com/DenDmitriev/DominantColors.git from cache (3.96s)
[312/715] Fetching sjsassetexportsession, webp.swift
Fetched https://github.com/samsonjs/SJSAssetExportSession.git from cache (6.35s)
Fetched https://github.com/awxkee/webp.swift.git from cache (6.35s)
Computing version for https://github.com/awxkee/webp.swift.git
Computed https://github.com/awxkee/webp.swift.git at 1.1.2 (9.55s)
Fetching https://github.com/awxkee/libwebp-ios.git
[1/556] Fetching libwebp-ios
Fetched https://github.com/awxkee/libwebp-ios.git from cache (2.86s)
Computing version for https://github.com/awxkee/libwebp-ios.git
Computed https://github.com/awxkee/libwebp-ios.git at 1.1.1 (3.51s)
Computing version for https://github.com/DenDmitriev/DominantColors.git
Computed https://github.com/DenDmitriev/DominantColors.git at 1.3.0 (0.53s)
Computing version for https://github.com/samsonjs/SJSAssetExportSession.git
Computed https://github.com/samsonjs/SJSAssetExportSession.git at 0.5.2 (0.54s)
Creating working copy for https://github.com/awxkee/libwebp-ios.git
Working copy of https://github.com/awxkee/libwebp-ios.git resolved at 1.1.1
Creating working copy for https://github.com/samsonjs/SJSAssetExportSession.git
Working copy of https://github.com/samsonjs/SJSAssetExportSession.git resolved at 0.5.2
Creating working copy for https://github.com/awxkee/webp.swift.git
Working copy of https://github.com/awxkee/webp.swift.git resolved at 1.1.2
Creating working copy for https://github.com/DenDmitriev/DominantColors.git
Working copy of https://github.com/DenDmitriev/DominantColors.git resolved at 1.3.0
BUILD FAILURE 6.2 macosSpm