Swift Package Index

Build Information

Failed to build ClangSwift, reference 0.0.4 (4ea3be), with Swift 6.4 for iOS using Xcode 27.0 on 16 Sep 2026 05:11:08 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/llvm-swift/clangswift.git
Reference: 0.0.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/llvm-swift/clangswift
 * tag               0.0.4      -> FETCH_HEAD
HEAD is now at 4ea3bed Fix crash when disposing a CXPlatformAvailability struct.
Cloned https://github.com/llvm-swift/clangswift.git
Revision (git rev-parse @):
4ea3bed27e5352e9fcb33f766bca7d549b53c738
SUCCESS checkout https://github.com/llvm-swift/clangswift.git at 0.0.4
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/llvm-swift/clangswift.git
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.4' to specify the current tools version
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-16 01:11:06.250 xcodebuild[529:3041] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-16-09_01-11-0006.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.4' to specify the current tools version
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.4' to specify the current tools version
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-16 01:11:07.967 xcodebuild[577:3434] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-16-09_01-11-0007.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.4' to specify the current tools version
BUILD FAILURE 6.4 iOS