The Swift Package Index logo.Swift Package Index

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 SwiftBuild, reference main (f26722), with Swift 5.10 for watchOS using Xcode 15.4 on 6 May 2025 04:19:04 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: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-build.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftlang/swift-build
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at f267224 Merge pull request #489 from swiftlang/owenv/language-check
Cloned https://github.com/swiftlang/swift-build.git
Revision (git rev-parse @):
f26722476ac8704b987303dbb9e74e575bce1a3c
SUCCESS checkout https://github.com/swiftlang/swift-build.git at main
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             5.10
Building package at path:  $PWD
https://github.com/swiftlang/swift-build.git
Command line invocation:
    /Applications/Xcode-15.4.0.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 6.0.0 but the installed version is 5.10.0
Resolved source packages:
  spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
2025-05-06 00:19:01.803 xcodebuild[456:2489] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-06-05_00-19-0001.xcresult
2025-05-06 00:19:01.905 xcodebuild[456:2489] [MT] DVTAssertions: Warning in IDEFrameworks/IDEFoundation/Execution/RunContextManager/IDERunContextManager.m:857
Details:  Error deleting scheme: Cannot modify data because the process disallows saving.
Object:   <IDERunContextManager: 0x600002530b40>
Method:   -deleteRunContexts:completionQueue:completionBlock:
Thread:   <_NSMainThread: 0x600000138180>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2025-05-06 00:19:01.907 xcodebuild[456:2489] could not delete old scheme: Error Domain=DVTCustomDataStoringErrors Code=0 "Cannot modify data because the process disallows saving." UserInfo={NSLocalizedDescription=Cannot modify data because the process disallows saving.}
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
Command line invocation:
    /Applications/Xcode-15.4.0.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 6.0.0 but the installed version is 5.10.0
Resolved source packages:
  spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
2025-05-06 00:19:03.559 xcodebuild[504:2793] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-06-05_00-19-0003.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
BUILD FAILURE 5.10 watchOS