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Build Information

Failed to build swift-whatwg-html, reference main (4e0436), with Swift 6.3 for iOS using Xcode 26.4 on 31 Oct 2026 12:44:35 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

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RunAll
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Builder version: 5.1.4
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/swift-whatwg/swift-whatwg-html.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-whatwg/swift-whatwg-html
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 4e04367 RFC 2045's coder is requested through the RFC 2045 package's Coder trait, so this package depends on one RFC 2045 package instead of two
Cloned https://github.com/swift-whatwg/swift-whatwg-html.git
Revision (git rev-parse @):
4e043672d7f77f2348d209a1135fabf681cafd55
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-whatwg/swift-whatwg-html.git at main
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Build
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Selected platform:         iOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/swift-whatwg/swift-whatwg-html.git
Command line invocation:
    /Applications/Xcode-26.5.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
Resolved source packages:
  spi-builder-workspace: (null)
2026-10-31 08:44:34.034 xcodebuild[536:3058] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-31-10_08-44-0034.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
Command line invocation:
    /Applications/Xcode-26.5.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
Resolved source packages:
  spi-builder-workspace: (null)
2026-10-31 08:44:35.622 xcodebuild[606:3571] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-31-10_08-44-0035.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
BUILD FAILURE 6.3 iOS