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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build xtree, reference 2.2.1 (bfc252), with Swift 5.9 for watchOS using Xcode 15.2 on 29 Apr 2025 02:03:06 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: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftyfinch/xtree.git
Reference: 2.2.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftyfinch/xtree
 * tag               2.2.1      -> FETCH_HEAD
HEAD is now at bfc252f [skip ci] Bump version 2.2.1
Cloned https://github.com/swiftyfinch/xtree.git
Revision (git rev-parse @):
bfc252fb96a19c77714cfe31a217c190a98ae8a0
SUCCESS checkout https://github.com/swiftyfinch/xtree.git at 2.2.1
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             5.9
Building package at path:  $PWD
https://github.com/swiftyfinch/xtree.git
Command line invocation:
    /Applications/Xcode-15.2.0.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
Fetching from https://github.com/jpsim/Yams
Fetching from https://github.com/apple/swift-argument-parser
Fetching from https://github.com/weichsel/ZIPFoundation
Fetching from https://github.com/kylef/Spectre.git
Fetching from https://github.com/tuist/XcodeProj
Fetching from https://github.com/onevcat/Rainbow
Fetching from https://github.com/swiftyfinch/Fish
Fetching from https://github.com/tadija/AEXML.git
Fetching from https://github.com/kylef/PathKit.git
Resolve Package Graph
Updating from https://github.com/tadija/AEXML.git
Updating from https://github.com/kylef/Spectre.git
Updating from https://github.com/apple/swift-argument-parser
Updating from https://github.com/swiftyfinch/Fish
Updating from https://github.com/jpsim/Yams
Updating from https://github.com/tuist/XcodeProj
Updating from https://github.com/onevcat/Rainbow
Updating from https://github.com/weichsel/ZIPFoundation
Updating from https://github.com/kylef/PathKit.git
Resolve Package Graph
Updating from https://github.com/kylef/Spectre.git
Updating from https://github.com/weichsel/ZIPFoundation
Updating from https://github.com/onevcat/Rainbow
Updating from https://github.com/jpsim/Yams
Updating from https://github.com/swiftyfinch/Fish
Updating from https://github.com/apple/swift-argument-parser
Updating from https://github.com/tuist/XcodeProj
Updating from https://github.com/tadija/AEXML.git
Updating from https://github.com/kylef/PathKit.git
Resolved source packages:
  xtree: /Users/admin/builder/spi-builder-workspace
2025-04-28 22:03:01.888 xcodebuild[461:2530] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-28-04_22-03-0001.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Dependencies could not be resolved because 'xcodeproj' >= 8.24.12 contains incompatible tools version (6.0.0) and root depends on 'xcodeproj' 9.1.0..<10.0.0.
Command line invocation:
    /Applications/Xcode-15.2.0.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
Updating from https://github.com/kylef/Spectre.git
Updating from https://github.com/tadija/AEXML.git
Updating from https://github.com/tuist/XcodeProj
Updating from https://github.com/kylef/PathKit.git
Updating from https://github.com/swiftyfinch/Fish
Updating from https://github.com/jpsim/Yams
Updating from https://github.com/apple/swift-argument-parser
Updating from https://github.com/onevcat/Rainbow
Updating from https://github.com/weichsel/ZIPFoundation
Resolved source packages:
  xtree: /Users/admin/builder/spi-builder-workspace
2025-04-28 22:03:05.570 xcodebuild[861:4193] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-28-04_22-03-0005.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Dependencies could not be resolved because 'xcodeproj' >= 8.24.12 contains incompatible tools version (6.0.0) and root depends on 'xcodeproj' 9.1.0..<10.0.0.
BUILD FAILURE 5.9 watchOS