Swift Package Index

Build Information

Failed to build SwiftCheck, reference master (8ce569), with Swift 5.10 for macOS (Xcode) using Xcode 15.4 on 19 Oct 2025 09:52:36 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

========================================
RunAll
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Builder version: 4.68.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/toastersocks/SwiftCheck.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/toastersocks/SwiftCheck
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 8ce569a Fix compatibility with older Swift compiler versions
Submodule path 'Carthage/Checkouts/FileCheck': checked out 'bd9cb30ceee1f21c02f51a7168f58471449807d8'
Submodule 'Carthage/Checkouts/FileCheck' (https://github.com/trill-lang/FileCheck.git) registered for path 'Carthage/Checkouts/FileCheck'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/FileCheck'...
Cloned https://github.com/toastersocks/SwiftCheck.git
Revision (git rev-parse @):
8ce569ae88b7fef2f4e22bf99ec27a9412124ee3
SUCCESS checkout https://github.com/toastersocks/SwiftCheck.git at master
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             5.10
Building package at path:  $PWD
https://github.com/toastersocks/SwiftCheck.git
Command line invocation:
    /Applications/Xcode-15.4.0.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
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "filecheck",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/llvm-swift/FileCheck.git"
    },
    {
      "identity" : "swift-testing",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-testing"
    }
  ],
  "manifest_display_name" : "SwiftCheck",
  "name" : "SwiftCheck",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftCheck",
      "targets" : [
        "SwiftCheck"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftCheckTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCheckTests",
      "path" : "Tests/SwiftCheckTests",
      "product_dependencies" : [
        "FileCheck",
        "Testing"
      ],
      "sources" : [
        "BooleanIdentitySpec.swift",
        "CartesianSpec.swift",
        "ComplexSpec.swift",
        "DiscardSpec.swift",
        "FailureSpec.swift",
        "FormatterSpec.swift",
        "GenSpec.swift",
        "LambdaSpec.swift",
        "ModifierSpec.swift",
        "PathSpec.swift",
        "PropertySpec.swift",
        "ReplaySpec.swift",
        "RoseSpec.swift",
        "ShrinkSpec.swift",
        "SimpleSpec.swift",
        "TestSpec.swift"
      ],
      "target_dependencies" : [
        "SwiftCheck"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftCheck",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCheck",
      "path" : "Sources/SwiftCheck",
      "product_memberships" : [
        "SwiftCheck"
      ],
      "sources" : [
        "Arbitrary.swift",
        "Cartesian.swift",
        "Check.swift",
        "CoArbitrary.swift",
        "Compose.swift",
        "Gen.swift",
        "Lattice.swift",
        "Modifiers.swift",
        "Property.swift",
        "Random.swift",
        "Rose.swift",
        "State.swift",
        "Test.swift",
        "Testable.swift",
        "WitnessedArbitrary.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "SwiftCheck",
    "schemes" : [
      "SwiftCheck",
      "SwiftCheck-iOS",
      "SwiftCheck-tvOS"
    ],
    "targets" : [
      "SwiftCheck",
      "SwiftCheckTests",
      "SwiftCheck-iOS",
      "SwiftCheck-iOSTests",
      "SwiftCheck-tvOS",
      "SwiftCheck-tvOSTests"
    ]
  }
}
2025-10-19 05:52:32.553 xcodebuild[564:3113] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-19-10_05-52-0032.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Dependencies could not be resolved because 'swift-testing' >= 0.11.0 contains incompatible tools version (6.0.0) and root depends on 'swift-testing' 0.12.0..<1.0.0.
Command line invocation:
    /Applications/Xcode-15.4.0.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/swiftlang/swift-testing
Updating from https://github.com/llvm-swift/FileCheck.git
Resolved source packages:
  SwiftCheck: /Users/admin/builder/spi-builder-workspace
2025-10-19 05:52:35.092 xcodebuild[613:3375] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-19-10_05-52-0035.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Dependencies could not be resolved because 'swift-testing' >= 0.11.0 contains incompatible tools version (6.0.0) and root depends on 'swift-testing' 0.12.0..<1.0.0.
BUILD FAILURE 5.10 macosXcodebuild