Swift Package Index

Build Information

Failed to build swift-once-macro, reference 1.1.1 (5f9d4e), with Swift 6.0 for macOS (Xcode) using Xcode 16.2 on 1 Apr 2026 01:36:02 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: 4.69.2
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/davdroman/swift-once-macro.git
Reference: 1.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/davdroman/swift-once-macro
 * tag               1.1.1      -> FETCH_HEAD
HEAD is now at 5f9d4e7 Bump swift-syntax upper bound to ..<604 (#8)
Cloned https://github.com/davdroman/swift-once-macro.git
Revision (git rev-parse @):
5f9d4e77cd95335fe14b44064fcf7f96e8ed56a0
SUCCESS checkout https://github.com/davdroman/swift-once-macro.git at 1.1.1
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Build
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Selected platform:         macosXcodebuild
Swift version:             6.0
Building package at path:  $PWD
https://github.com/davdroman/swift-once-macro.git
Command line invocation:
    /Applications/Xcode-16.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
Resolved source packages:
  spi-builder-workspace: (null)
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
2026-03-31 18:35:59.573 xcodebuild[506:2943] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-31-03_18-35-0059.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
Command line invocation:
    /Applications/Xcode-16.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-03-31 18:36:01.441 xcodebuild[573:3362] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-31-03_18-36-0001.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
BUILD FAILURE 6.0 macosXcodebuild