Build Information
Failed to build swift-async-dns-resolver, reference 0.7.0 (9900d9), with Swift 6.0 for watchOS using Xcode 16.2 on 20 Apr 2026 11:06:53 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/apple/swift-async-dns-resolver.git
Reference: 0.7.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-async-dns-resolver
* tag 0.7.0 -> FETCH_HEAD
HEAD is now at 9900d9b Drop Swift 6.0 (#83)
Submodule path 'Sources/CAsyncDNSResolver/c-ares': checked out '6360e96b5cf8e5980c887ce58ef727e53d77243a'
Submodule 'c-ares' (https://github.com/c-ares/c-ares.git) registered for path 'Sources/CAsyncDNSResolver/c-ares'
Cloning into '/Users/admin/builder/spi-builder-workspace/Sources/CAsyncDNSResolver/c-ares'...
Cloned https://github.com/apple/swift-async-dns-resolver.git
Revision (git rev-parse @):
9900d9b4113427a170d5f26075c2128be94984df
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-async-dns-resolver.git at 0.7.0
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Build
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Selected platform: watchOS
Swift version: 6.0
Building package at path: $PWD
https://github.com/apple/swift-async-dns-resolver.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
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
Resolved source packages:
spi-builder-workspace: (null)
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
2026-04-20 04:06:50.102 xcodebuild[488:2818] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-20-04_04-06-0050.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
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
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
Resolved source packages:
spi-builder-workspace: (null)
2026-04-20 04:06:51.925 xcodebuild[549:3174] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-20-04_04-06-0051.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.0
BUILD FAILURE 6.0 watchOS