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Build Information

Failed to build swift-byte, reference main (2511c2), with Swift 6.1 for iOS using Xcode 16.3 on 13 Nov 2026 01:59:12 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-atoms/swift-byte.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-atoms/swift-byte
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2511c2e swift-byte's exports.swift holds only @_exported public imports: the plain import Carrier under the Collection trait goes, which CI's Quality job refused (swiftlint exports_swift_strict_shape, TEST-020) on this commit and the two before it. Nothing needed it there: swift build --enable-all-traits on macOS 27.2, Swift 6.4.2 succeeds without it, and swift test --enable-all-traits passes.
Cloned https://github.com/swift-atoms/swift-byte.git
Revision (git rev-parse @):
2511c2ece6d1d056192769c1850f2da22eaf154d
SUCCESS checkout https://github.com/swift-atoms/swift-byte.git at main
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Build
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Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/swift-atoms/swift-byte.git
https://github.com/swift-atoms/swift-byte.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
error: fatalError
Command line invocation:
    /Applications/Xcode-16.3.0.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 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-11-12 17:59:11.243 xcodebuild[504:2923] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-12-11_17-59-0011.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 6.1.0
Command line invocation:
    /Applications/Xcode-16.3.0.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 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-11-12 17:59:11.970 xcodebuild[515:3018] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-12-11_17-59-0011.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 6.1.0
BUILD FAILURE 6.1 iOS