Swift Package Index

Build Information

Failed to build Commandant, reference 0.18.0 (a1671c), with Swift 6.4 for macOS (Xcode) using Xcode 27.0 on 17 Sep 2026 14:06:40 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Commandant -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Carthage/Commandant.git
Reference: 0.18.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Carthage/Commandant
 * tag               0.18.0     -> FETCH_HEAD
HEAD is now at a1671cf Merge pull request #159 from Carthage/release-0.18
Submodule path 'Carthage/Checkouts/Nimble': checked out 'e491a6731307bb23783bf664d003be9b2fa59ab5'
Submodule path 'Carthage/Checkouts/Quick': checked out '8a10ae40b78d2360ca56638f15fe721be8529993'
Submodule path 'Carthage/Checkouts/Quick/Externals/Nimble': checked out 'e491a6731307bb23783bf664d003be9b2fa59ab5'
Submodule path 'Carthage/Checkouts/xcconfigs': checked out '4ced0ad5a971220917994a4edfa6abf9702e3818'
Submodule 'Carthage/Checkouts/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Nimble'
Submodule 'Carthage/Checkouts/Quick' (https://github.com/Quick/Quick.git) registered for path 'Carthage/Checkouts/Quick'
Submodule 'Carthage/Checkouts/xcconfigs' (https://github.com/jspahrsummers/xcconfigs.git) registered for path 'Carthage/Checkouts/xcconfigs'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Nimble'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Quick'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/xcconfigs'...
Submodule 'Externals/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Quick/Externals/Nimble'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Quick/Externals/Nimble'...
Cloned https://github.com/Carthage/Commandant.git
Revision (git rev-parse @):
a1671cf728db837cf5ec1980a80d276bbba748f6
SUCCESS checkout https://github.com/Carthage/Commandant.git at 0.18.0
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Carthage/Commandant.git
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.1.0",
            "upper_bound" : "4.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick.git"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble.git"
    }
  ],
  "manifest_display_name" : "Commandant",
  "name" : "Commandant",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Commandant",
      "targets" : [
        "Commandant"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "CommandantTests",
      "module_type" : "SwiftTarget",
      "name" : "CommandantTests",
      "path" : "Tests/CommandantTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "CommandSpec.swift",
        "OptionSpec.swift",
        "OptionsWithEnumProtocolSpec.swift",
        "OrderedSetSpec.swift"
      ],
      "target_dependencies" : [
        "Commandant"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Commandant",
      "module_type" : "SwiftTarget",
      "name" : "Commandant",
      "path" : "Sources/Commandant",
      "product_memberships" : [
        "Commandant"
      ],
      "sources" : [
        "Argument.swift",
        "ArgumentParser.swift",
        "ArgumentProtocol.swift",
        "Command.swift",
        "Errors.swift",
        "HelpCommand.swift",
        "Option.swift",
        "OrderedSet.swift",
        "Result+Additions.swift",
        "Switch.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Test",
      "Release",
      "Profile"
    ],
    "name" : "Commandant",
    "schemes" : [
      "Commandant"
    ],
    "targets" : [
      "Commandant",
      "Tests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Commandant -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Commandant -destination platform=macOS,arch=arm64
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Commandant' in project 'Commandant' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 36314f75dca2bf396e88aa8332ecbd8f
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/36314f75dca2bf396e88aa8332ecbd8f.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Commandant.xcodeproj: error: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.9, but the range of supported deployment target versions is 12.0 to 27.0.x. (in target 'Commandant' from project 'Commandant')
** BUILD FAILED **
The following build commands failed:
	Building project Commandant with scheme Commandant
(1 failure)
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.1.0",
            "upper_bound" : "4.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick.git"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble.git"
    }
  ],
  "manifest_display_name" : "Commandant",
  "name" : "Commandant",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Commandant",
      "targets" : [
        "Commandant"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "CommandantTests",
      "module_type" : "SwiftTarget",
      "name" : "CommandantTests",
      "path" : "Tests/CommandantTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "CommandSpec.swift",
        "OptionSpec.swift",
        "OptionsWithEnumProtocolSpec.swift",
        "OrderedSetSpec.swift"
      ],
      "target_dependencies" : [
        "Commandant"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Commandant",
      "module_type" : "SwiftTarget",
      "name" : "Commandant",
      "path" : "Sources/Commandant",
      "product_memberships" : [
        "Commandant"
      ],
      "sources" : [
        "Argument.swift",
        "ArgumentParser.swift",
        "ArgumentProtocol.swift",
        "Command.swift",
        "Errors.swift",
        "HelpCommand.swift",
        "Option.swift",
        "OrderedSet.swift",
        "Result+Additions.swift",
        "Switch.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Test",
      "Release",
      "Profile"
    ],
    "name" : "Commandant",
    "schemes" : [
      "Commandant"
    ],
    "targets" : [
      "Commandant",
      "Tests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Commandant -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Commandant -destination platform=macOS,arch=arm64
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Commandant' in project 'Commandant' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/Commandant.xcodeproj: error: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.9, but the range of supported deployment target versions is 12.0 to 27.0.x. (in target 'Commandant' from project 'Commandant')
** BUILD FAILED **
The following build commands failed:
	Building project Commandant with scheme Commandant
(1 failure)
BUILD FAILURE 6.4 macosXcodebuild