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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build recommender, reference 0.0.1-alpha1 (a3b73a), with Swift 6.1 for watchOS using Xcode 16.3 on 25 Apr 2025 18:17:39 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: 4.61.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/mborsten/recommender.git
Reference: 0.0.1-alpha1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mborsten/recommender
 * tag               0.0.1-alpha1 -> FETCH_HEAD
HEAD is now at a3b73a9 Fixed access control
Cloned https://github.com/mborsten/recommender.git
Revision (git rev-parse @):
a3b73a99e7d5ca878533b3455d6ee3e0d8f16f36
SUCCESS checkout https://github.com/mborsten/recommender.git at 0.0.1-alpha1
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Build
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Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mborsten/recommender.git
https://github.com/mborsten/recommender.git
error: Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/vapor/vapor.git
Fetching from https://github.com/vapor/fluent.git
Fetching from https://github.com/vapor/fluent-kit.git
Fetching from https://github.com/apple/swift-nio.git (cached)
Fetching from https://github.com/vapor/sql-kit.git
Fetching from https://github.com/apple/swift-log.git (cached)
Fetching from https://github.com/apple/swift-collections.git (cached)
Fetching from https://github.com/apple/swift-atomics.git (cached)
Fetching from https://github.com/apple/swift-system.git (cached)
Fetching from https://github.com/apple/swift-service-context.git
Fetching from https://github.com/vapor/websocket-kit.git
Fetching from https://github.com/apple/swift-distributed-tracing.git
Fetching from https://github.com/vapor/multipart-kit.git
Fetching from https://github.com/apple/swift-algorithms.git (cached)
Fetching from https://github.com/apple/swift-metrics.git (cached)
Fetching from https://github.com/apple/swift-nio-extras.git (cached)
Fetching from https://github.com/apple/swift-nio-http2.git (cached)
Fetching from https://github.com/apple/swift-nio-ssl.git (cached)
Fetching from https://github.com/apple/swift-crypto.git (cached)
Fetching from https://github.com/vapor/console-kit.git
Fetching from https://github.com/vapor/async-kit.git
Fetching from https://github.com/vapor/routing-kit.git
Fetching from https://github.com/swift-server/async-http-client.git (cached)
Fetching from https://github.com/apple/swift-nio-transport-services.git (cached)
Fetching from https://github.com/apple/swift-numerics.git (cached)
Fetching from https://github.com/apple/swift-http-structured-headers.git (cached)
Fetching from https://github.com/apple/swift-http-types.git (cached)
Fetching from https://github.com/apple/swift-asn1.git (cached)
Creating working copy of package ‘swift-distributed-tracing’
Checking out 1.2.0 of package ‘swift-distributed-tracing’
Creating working copy of package ‘vapor’
Checking out 4.114.1 of package ‘vapor’
Creating working copy of package ‘console-kit’
Checking out 4.15.2 of package ‘console-kit’
Creating working copy of package ‘routing-kit’
Checking out 4.9.1 of package ‘routing-kit’
Creating working copy of package ‘swift-log’
Checking out 1.6.3 of package ‘swift-log’
Creating working copy of package ‘swift-numerics’
Checking out 1.0.3 of package ‘swift-numerics’
Creating working copy of package ‘sql-kit’
Checking out 3.33.0 of package ‘sql-kit’
Creating working copy of package ‘fluent-kit’
Checking out 1.52.1 of package ‘fluent-kit’
Creating working copy of package ‘swift-nio-http2’
Checking out 1.36.0 of package ‘swift-nio-http2’
Creating working copy of package ‘swift-system’
Checking out 1.4.2 of package ‘swift-system’
Creating working copy of package ‘websocket-kit’
Checking out 2.15.0 of package ‘websocket-kit’
Creating working copy of package ‘swift-http-structured-headers’
Checking out 1.2.2 of package ‘swift-http-structured-headers’
Creating working copy of package ‘swift-crypto’
Checking out 3.12.3 of package ‘swift-crypto’
Creating working copy of package ‘swift-http-types’
Checking out 1.4.0 of package ‘swift-http-types’
Creating working copy of package ‘swift-atomics’
Checking out 1.2.0 of package ‘swift-atomics’
Creating working copy of package ‘swift-algorithms’
Checking out 1.2.1 of package ‘swift-algorithms’
Creating working copy of package ‘swift-nio-ssl’
Checking out 2.30.0 of package ‘swift-nio-ssl’
Creating working copy of package ‘async-kit’
Checking out 1.20.0 of package ‘async-kit’
Creating working copy of package ‘swift-asn1’
Checking out 1.3.2 of package ‘swift-asn1’
Creating working copy of package ‘async-http-client’
Checking out 1.25.2 of package ‘async-http-client’
Creating working copy of package ‘swift-collections’
Checking out 1.1.4 of package ‘swift-collections’
Creating working copy of package ‘swift-nio-extras’
Checking out 1.26.0 of package ‘swift-nio-extras’
Creating working copy of package ‘swift-nio-transport-services’
Checking out 1.24.0 of package ‘swift-nio-transport-services’
Creating working copy of package ‘fluent’
Checking out 4.12.0 of package ‘fluent’
Creating working copy of package ‘swift-nio’
Checking out 2.82.0 of package ‘swift-nio’
Creating working copy of package ‘swift-metrics’
Checking out 2.6.1 of package ‘swift-metrics’
Creating working copy of package ‘swift-service-context’
Checking out 1.2.0 of package ‘swift-service-context’
Creating working copy of package ‘multipart-kit’
Checking out 4.7.1 of package ‘multipart-kit’
Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swiftResolve Package Graph
Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
Resolved source packages:
  spi-builder-workspace: (null)
2025-04-25 11:17:38.267 xcodebuild[511:2820] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-25-04_11-17-0038.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
Resolved source packages:
  spi-builder-workspace: (null)
2025-04-25 11:17:39.207 xcodebuild[1607:7080] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-25-04_11-17-0039.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
BUILD FAILURE 6.1 watchOS