Swift Package Index

Build Information

Failed to build CZlib, reference 0.1.2 (a781e6), with Swift 6.4 for macOS (Xcode) using Xcode 27.0 on 17 Sep 2026 08:03:03 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: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Kitura/CZlib.git
Reference: 0.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Kitura/CZlib
 * tag               0.1.2      -> FETCH_HEAD
HEAD is now at a781e6e Add Swift 4 support
Cloned https://github.com/Kitura/CZlib.git
Revision (git rev-parse @):
a781e6ef055fb8f0d608fe30a28e6a0f62ae498b
SUCCESS checkout https://github.com/Kitura/CZlib.git at 0.1.2
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Build
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Selected platform:         macosXcodebuild
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Kitura/CZlib.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
the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifierthe Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-17 04:03:01.726 xcodebuild[529:3025] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-17-09_04-03-0001.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
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
the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifierthe Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-17 04:03:03.600 xcodebuild[577:3421] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-17-09_04-03-0003.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
BUILD FAILURE 6.4 macosXcodebuild