Build Information
Failed to build swift-bson, reference 2.1.0 (dad631), with Swift 6.0 for macOS (Xcode) using Xcode 16.2 on 22 Apr 2026 00:55:47 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/rarestype/swift-bson.git
Reference: 2.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/rarestype/swift-bson
* tag 2.1.0 -> FETCH_HEAD
HEAD is now at dad631e Merge pull request #18 from rarestype/upgrade-gram
Cloned https://github.com/rarestype/swift-bson.git
Revision (git rev-parse @):
dad631e26c3bf9137c9bd741b6baaa974eaf3124
SUCCESS checkout https://github.com/rarestype/swift-bson.git at 2.1.0
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Build
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Selected platform: macosXcodebuild
Swift version: 6.0
Building package at path: $PWD
https://github.com/rarestype/swift-bson.git
Command line invocation:
/Applications/Xcode-16.2.0.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
Fetching from https://github.com/ordo-one/dollup
Fetching from https://github.com/rarestype/gram
Fetching from https://github.com/rarestype/u
Fetching from https://github.com/rarestype/h
Resolve Package Graph
Updating from https://github.com/rarestype/gram
Updating from https://github.com/ordo-one/dollup
Updating from https://github.com/rarestype/h
Updating from https://github.com/rarestype/u
Resolve Package Graph
Updating from https://github.com/rarestype/u
Updating from https://github.com/rarestype/gram
Updating from https://github.com/rarestype/h
Updating from https://github.com/ordo-one/dollup
Resolved source packages:
spi-builder-workspace: (null)
2026-04-21 17:55:43.386 xcodebuild[477:2759] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-21-04_17-55-0043.xcresult
xcodebuild: error: Could not resolve package dependencies:
Failed to resolve dependencies Dependencies could not be resolved because 'u' >= 0.2.1 contains incompatible tools version (6.2.0) and root depends on 'u' 1.0.0..<2.0.0.
Command line invocation:
/Applications/Xcode-16.2.0.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
Updating from https://github.com/ordo-one/dollup
Updating from https://github.com/rarestype/gram
Updating from https://github.com/rarestype/h
Updating from https://github.com/rarestype/u
Resolved source packages:
spi-builder-workspace: (null)
2026-04-21 17:55:45.911 xcodebuild[687:3816] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-21-04_17-55-0045.xcresult
xcodebuild: error: Could not resolve package dependencies:
Failed to resolve dependencies Dependencies could not be resolved because 'u' >= 0.2.1 contains incompatible tools version (6.2.0) and root depends on 'u' 1.0.0..<2.0.0.
BUILD FAILURE 6.0 macosXcodebuild