Swift Package Index

Build Information

Failed to build lns, reference master (851d16), with Swift 6.4 for macOS (Xcode) using Xcode 27.0 on 16 Sep 2026 22:23:07 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 lns -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/erica/lns.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/erica/lns
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 851d16f A little test cleanup
Cloned https://github.com/erica/lns.git
Revision (git rev-parse @):
851d16f0490e188d34773a743bd545439276e2e6
SUCCESS checkout https://github.com/erica/lns.git at master
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.4
Building package at path:  $PWD
https://github.com/erica/lns.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
Resolve Package Graph
Fetching from https://github.com/apple/swift-argument-parser
Creating working copy of package ‘swift-argument-parser’
Checking out 0.0.6 of package ‘swift-argument-parser’
Resolved source packages:
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 0.0.6
resolved source packages: swift-argument-parser
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "exact" : [
          "0.0.6"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "lns",
  "name" : "lns",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    }
  ],
  "products" : [
    {
      "name" : "lns",
      "targets" : [
        "lns"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "lnsTests",
      "module_type" : "SwiftTarget",
      "name" : "lnsTests",
      "path" : "Tests/lnsTests",
      "sources" : [
        "XCTestManifests.swift",
        "lnsTests.swift"
      ],
      "target_dependencies" : [
        "lns"
      ],
      "type" : "test"
    },
    {
      "c99name" : "lns",
      "module_type" : "SwiftTarget",
      "name" : "lns",
      "path" : "lns",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "lns"
      ],
      "sources" : [
        "Linker.swift",
        "RuntimeError.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.1"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "lns",
    "schemes" : [
      "lns"
    ],
    "targets" : [
      "lns"
    ]
  }
}
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 lns -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 lns -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 0.0.6
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'lns' in project 'lns'
        ➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
    Target 'ArgumentParser-product' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
    Target 'ArgumentParser' in project 'swift-argument-parser' (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/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: cf263f81717cc62fff8ac8dffb55c5f3
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/cf263f81717cc62fff8ac8dffb55c5f3.xcbuilddata
/Users/admin/builder/spi-builder-workspace/lns.xcodeproj: error: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.15, but the range of supported deployment target versions is 12.0 to 27.0.x. (in target 'lns' from project 'lns')
note: Disabling hardened runtime with ad-hoc codesigning. (in target 'lns' from project 'lns')
2026-09-16 18:23:03.196 xcodebuild[676:4357] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building project lns with scheme lns
(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
Resolve Package Graph
Resolved source packages:
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 0.0.6
resolved source packages: swift-argument-parser
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "exact" : [
          "0.0.6"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "lns",
  "name" : "lns",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    }
  ],
  "products" : [
    {
      "name" : "lns",
      "targets" : [
        "lns"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "lnsTests",
      "module_type" : "SwiftTarget",
      "name" : "lnsTests",
      "path" : "Tests/lnsTests",
      "sources" : [
        "XCTestManifests.swift",
        "lnsTests.swift"
      ],
      "target_dependencies" : [
        "lns"
      ],
      "type" : "test"
    },
    {
      "c99name" : "lns",
      "module_type" : "SwiftTarget",
      "name" : "lns",
      "path" : "lns",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "lns"
      ],
      "sources" : [
        "Linker.swift",
        "RuntimeError.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.1"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "lns",
    "schemes" : [
      "lns"
    ],
    "targets" : [
      "lns"
    ]
  }
}
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 lns -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 lns -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 0.0.6
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'lns' in project 'lns'
        ➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
    Target 'ArgumentParser-product' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
    Target 'ArgumentParser' in project 'swift-argument-parser' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/lns.xcodeproj: error: The macOS deployment target 'MACOSX_DEPLOYMENT_TARGET' is set to 10.15, but the range of supported deployment target versions is 12.0 to 27.0.x. (in target 'lns' from project 'lns')
note: Disabling hardened runtime with ad-hoc codesigning. (in target 'lns' from project 'lns')
2026-09-16 18:23:07.229 xcodebuild[699:4540] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building project lns with scheme lns
(1 failure)
BUILD FAILURE 6.4 macosXcodebuild