Build Information
Failed to build swift-css-standard, reference 0.1.7 (0a2a5a), with Swift 6.4 for macOS (SPM) on 23 Sep 2026 16:33:18 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64Build 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/swift-standards/swift-css-standard.git
Reference: 0.1.7
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-standards/swift-css-standard
* tag 0.1.7 -> FETCH_HEAD
HEAD is now at 0a2a5af Add LAB/LCH/Oklab/Oklch support to CSS Color → sRGB conversion
Cloned https://github.com/swift-standards/swift-css-standard.git
Revision (git rev-parse @):
0a2a5af89981237e1679a1cd25f5966f9da4c49a
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-standards/swift-css-standard.git at 0.1.7
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Build
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Selected platform: macosSpm
Swift version: 6.4
Building package at path: $PWD
https://github.com/swift-standards/swift-css-standard.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Fetching https://github.com/swift-standards/swift-color-standard
Fetching https://github.com/swift-standards/swift-w3c-css
Fetching https://github.com/swift-standards/swift-iec-61966
[1/456] Fetching swift-color-standard
[20/758] Fetching swift-color-standard, swift-iec-61966
warning: 'swift-w3c-css': skipping cache due to an error: Failed to clone repository https://github.com/swift-standards/swift-w3c-css:
Cloning into bare repository '/Users/admin/Library/Caches/org.swift.swiftpm/repositories/swift-w3c-css-d1b3b533'...
fatal: could not read Username for 'https://github.com': terminal prompts disabled
Fetched https://github.com/swift-standards/swift-iec-61966 (1.01s)
Fetched https://github.com/swift-standards/swift-color-standard (1.01s)
Fetching https://github.com/swift-standards/swift-w3c-css
warning: 'swift-w3c-css': skipping cache due to an error: Failed to clone repository https://github.com/swift-standards/swift-w3c-css:
Cloning into bare repository '/Users/admin/Library/Caches/org.swift.swiftpm/repositories/swift-w3c-css-d1b3b533'...
fatal: could not read Username for 'https://github.com': terminal prompts disabled
error: Failed to clone repository https://github.com/swift-standards/swift-w3c-css:
Cloning into bare repository '/Users/admin/builder/spi-builder-workspace/.build/repositories/swift-w3c-css-d1b3b533'...
fatal: could not read Username for 'https://github.com': terminal prompts disabled
BUILD FAILURE 6.4 macosSpm