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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 soto, reference 7.6.1 (ab7bab), with Swift 5.9 for macOS (Xcode) using Xcode 15.2 on 17 Apr 2025 15:31:28 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: 4.60.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/soto-project/soto.git
Reference: 7.6.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/soto-project/soto
 * tag               7.6.1      -> FETCH_HEAD
HEAD is now at ab7bab7 soto-core v7.6.0
Cloned https://github.com/soto-project/soto.git
Revision (git rev-parse @):
ab7bab78dbe6fd77722639a7f7f7521b1a79e900
SUCCESS checkout https://github.com/soto-project/soto.git at 7.6.1
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Build
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Selected platform:         macosXcodebuild
Swift version:             5.9
Building package at path:  $PWD
https://github.com/soto-project/soto.git
Command line invocation:
    /Applications/Xcode-15.2.0.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/soto-project/soto-core.git
Resolve Package Graph
Updating from https://github.com/soto-project/soto-core.git
Resolved source packages:
  soto: /Users/admin/builder/spi-builder-workspace
Resolve Package Graph
Updating from https://github.com/soto-project/soto-core.git
2025-04-17 11:31:25.049 xcodebuild[479:2732] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-17-04_11-31-0025.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Dependencies could not be resolved because root depends on 'soto-core' 7.6.0..<8.0.0.
'soto-core' >= 7.6.0 cannot be used because no versions of 'soto-core' match the requirement 7.6.1..<8.0.0 and 'soto-core' 7.6.0 contains incompatible tools version (5.10.0).
Command line invocation:
    /Applications/Xcode-15.2.0.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/soto-project/soto-core.git
Resolved source packages:
  soto: /Users/admin/builder/spi-builder-workspace
2025-04-17 11:31:27.636 xcodebuild[587:3338] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-17-04_11-31-0027.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Dependencies could not be resolved because root depends on 'soto-core' 7.6.0..<8.0.0.
'soto-core' >= 7.6.0 cannot be used because no versions of 'soto-core' match the requirement 7.6.1..<8.0.0 and 'soto-core' 7.6.0 contains incompatible tools version (5.10.0).
BUILD FAILURE 5.9 macosXcodebuild