Swift Package Index

Build Information

Failed to build Lightning, reference master (e2649a), with Swift 6.3 for macOS (Xcode) using Xcode 26.4 on 10 Apr 2026 17:54:17 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: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/skylab-inc/lightning.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/skylab-inc/lightning
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e2649af Refactored and added more tests
Cloned https://github.com/skylab-inc/lightning.git
Revision (git rev-parse @):
e2649af0c70347ee0d4a7d863b8e86e8c98136f8
SUCCESS checkout https://github.com/skylab-inc/lightning.git at master
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Build
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Selected platform:         macosXcodebuild
Swift version:             6.3
Building package at path:  $PWD
https://github.com/skylab-inc/lightning.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/crossroadlabs/Regex.git
Fetching from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.3' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.gitResolve Package Graph
Updating from https://github.com/crossroadlabs/Regex.git
Updating from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.3' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.gitResolve Package Graph
Updating from https://github.com/crossroadlabs/Regex.git
Updating from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.3' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.git
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-10 13:54:14.634 xcodebuild[525:3015] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-10-04_13-54-0014.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.3' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Updating from https://github.com/crossroadlabs/Regex.git
Updating from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.3' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.git
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-10 13:54:17.224 xcodebuild[649:3786] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-10-04_13-54-0017.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.3' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.git
BUILD FAILURE 6.3 macosXcodebuild