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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 master (20475a), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 25 Apr 2025 18:19:14 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: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mborsten/recommender
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 20475ae Some cleanup
Cloned https://github.com/mborsten/recommender.git
Revision (git rev-parse @):
20475ae780d16d02254fe8442fa2f7bd6a4fd0a1
SUCCESS checkout https://github.com/mborsten/recommender.git at master
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Build
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Selected platform:         macosXcodebuild
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/vapor/sql-kit.git
Fetching from https://github.com/apple/swift-nio.git (cached)
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/vapor/websocket-kit.git
Fetching from https://github.com/apple/swift-service-context.git
Fetching from https://github.com/apple/swift-distributed-tracing.git
Fetching from https://github.com/apple/swift-algorithms.git (cached)
Fetching from https://github.com/vapor/multipart-kit.git
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/vapor/routing-kit.git
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/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-collections’
Checking out 1.1.4 of package ‘swift-collections’
Creating working copy of package ‘async-kit’
Checking out 1.20.0 of package ‘async-kit’
Creating working copy of package ‘fluent-kit’
Checking out 1.52.1 of package ‘fluent-kit’
Creating working copy of package ‘swift-nio-extras’
Checking out 1.26.0 of package ‘swift-nio-extras’
Creating working copy of package ‘swift-log’
Checking out 1.6.3 of package ‘swift-log’
Creating working copy of package ‘console-kit’
Checking out 4.15.2 of package ‘console-kit’
Creating working copy of package ‘swift-algorithms’
Checking out 1.2.1 of package ‘swift-algorithms’
Creating working copy of package ‘swift-numerics’
Checking out 1.0.3 of package ‘swift-numerics’
Creating working copy of package ‘swift-crypto’
Checking out 3.12.3 of package ‘swift-crypto’
Creating working copy of package ‘swift-service-context’
Checking out 1.2.0 of package ‘swift-service-context’
Creating working copy of package ‘swift-system’
Checking out 1.4.2 of package ‘swift-system’
Creating working copy of package ‘swift-nio-http2’
Checking out 1.36.0 of package ‘swift-nio-http2’
Creating working copy of package ‘sql-kit’
Checking out 3.33.0 of package ‘sql-kit’
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 ‘swift-distributed-tracing’
Checking out 1.2.0 of package ‘swift-distributed-tracing’
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-nio-ssl’
Checking out 2.30.0 of package ‘swift-nio-ssl’
Creating working copy of package ‘multipart-kit’
Checking out 4.7.1 of package ‘multipart-kit’
Creating working copy of package ‘swift-atomics’
Checking out 1.2.0 of package ‘swift-atomics’
Creating working copy of package ‘swift-nio’
Checking out 2.82.0 of package ‘swift-nio’
Creating working copy of package ‘vapor’
Checking out 4.114.1 of package ‘vapor’
Creating working copy of package ‘swift-http-types’
Checking out 1.4.0 of package ‘swift-http-types’
Creating working copy of package ‘routing-kit’
Checking out 4.9.1 of package ‘routing-kit’
Creating working copy of package ‘async-http-client’
Checking out 1.25.2 of package ‘async-http-client’
Creating working copy of package ‘fluent’
Checking out 4.12.0 of package ‘fluent’
Creating working copy of package ‘swift-asn1’
Checking out 1.3.2 of package ‘swift-asn1’
Creating working copy of package ‘swift-metrics’
Checking out 2.6.1 of package ‘swift-metrics’
Creating working copy of package ‘websocket-kit’
Checking out 2.15.0 of package ‘websocket-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 11:19:13.620 xcodebuild[518:2886] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-25-04_11-19-0013.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 11:19:14.511 xcodebuild[1612:7176] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-25-04_11-19-0014.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 macosXcodebuild