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 sensors-swift-trainers, reference 1.1.0 (660f17), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 25 Apr 2025 19:07:16 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/codeinversion/sensors-swift-trainers.git
Reference: 1.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/codeinversion/sensors-swift-trainers
 * tag               1.1.0      -> FETCH_HEAD
HEAD is now at 660f172 Release 1.1.0
Cloned https://github.com/codeinversion/sensors-swift-trainers.git
Revision (git rev-parse @):
660f1720e9a8b22d92d1bf7b1ed67d04b851754e
SUCCESS checkout https://github.com/codeinversion/sensors-swift-trainers.git at 1.1.0
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/codeinversion/sensors-swift-trainers.git
https://github.com/codeinversion/sensors-swift-trainers.git
error: 'spi-builder-workspace': the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
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
resolved source packages:
error: 'spi-builder-workspace': the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
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
resolved source packages:
error: 'spi-builder-workspace': the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
error: fatalError
BUILD FAILURE 6.1 macosXcodebuild