Swift Package Index

Build Information

Failed to build SwiftDeterminism, reference v1.3.0 (ff53b5), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 27 Sep 2026 01:12:33 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jpurnell/SwiftDeterminism.git
Reference: v1.3.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/jpurnell/SwiftDeterminism
 * tag               v1.3.0     -> FETCH_HEAD
HEAD is now at ff53b5a feat(calendar): Calendar.iso8601UTC, for the one component the system changes
Cloned https://github.com/jpurnell/SwiftDeterminism.git
Revision (git rev-parse @):
ff53b5aa728a33fea62c98390b16ff54892070ea
SUCCESS checkout https://github.com/jpurnell/SwiftDeterminism.git at v1.3.0
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/jpurnell/SwiftDeterminism.git
https://github.com/jpurnell/SwiftDeterminism.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 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 6.2.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-26 18:12:32.658 xcodebuild[503:2898] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-26-09_18-12-0032.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.2.0 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 6.2.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-26 18:12:33.375 xcodebuild[512:2981] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-26-09_18-12-0033.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 macosXcodebuild