Swift Package Index

Build Information

Failed to build Foil, reference 6.1.0 (251c7c), with Swift 6.4 for iOS using Xcode 27.0 on 22 Sep 2026 15:43:52 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 Foil -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jessesquires/Foil.git
Reference: 6.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/jessesquires/Foil
 * tag               6.1.0      -> FETCH_HEAD
HEAD is now at 251c7ce update changelog
Cloned https://github.com/jessesquires/Foil.git
Revision (git rev-parse @):
251c7cef038641ab7a46455797b7c3cb51b99824
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/jessesquires/Foil.git at 6.1.0
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/jessesquires/Foil.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" : [
  ],
  "manifest_display_name" : "Foil",
  "name" : "Foil",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Foil",
      "targets" : [
        "Foil"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "6"
  ],
  "targets" : [
    {
      "c99name" : "FoilTests",
      "module_type" : "SwiftTarget",
      "name" : "FoilTests",
      "path" : "Tests",
      "sources" : [
        "IntegrationTests.swift",
        "ObservationTests.swift",
        "PropertyWrapperTests.swift",
        "TestModel.swift",
        "TestSettings.swift",
        "UserDefaults+Extensions.swift"
      ],
      "target_dependencies" : [
        "Foil"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Foil",
      "module_type" : "SwiftTarget",
      "name" : "Foil",
      "path" : "Sources",
      "product_memberships" : [
        "Foil"
      ],
      "sources" : [
        "FoilDefaultStorage.swift",
        "FoilDefaultStorageOptional.swift",
        "ObserverTrampoline.swift",
        "UserDefaults+Extensions.swift",
        "UserDefaultsSerializable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Foil",
    "schemes" : [
      "Foil"
    ],
    "targets" : [
      "Foil",
      "FoilTests"
    ]
  }
}
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 Foil -destination generic/platform=iOS
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 Foil -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Foil' in project 'Foil' (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/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.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/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.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: c7a546cddc4bda01be62aa5bcf91658c
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c7a546cddc4bda01be62aa5bcf91658c.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Foil.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 13.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Foil' from project 'Foil')
note: Run script build phase 'Run SwiftLint' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Foil' from project 'Foil')
** BUILD FAILED **
The following build commands failed:
	Building project Foil with scheme Foil
(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" : [
  ],
  "manifest_display_name" : "Foil",
  "name" : "Foil",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Foil",
      "targets" : [
        "Foil"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "6"
  ],
  "targets" : [
    {
      "c99name" : "FoilTests",
      "module_type" : "SwiftTarget",
      "name" : "FoilTests",
      "path" : "Tests",
      "sources" : [
        "IntegrationTests.swift",
        "ObservationTests.swift",
        "PropertyWrapperTests.swift",
        "TestModel.swift",
        "TestSettings.swift",
        "UserDefaults+Extensions.swift"
      ],
      "target_dependencies" : [
        "Foil"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Foil",
      "module_type" : "SwiftTarget",
      "name" : "Foil",
      "path" : "Sources",
      "product_memberships" : [
        "Foil"
      ],
      "sources" : [
        "FoilDefaultStorage.swift",
        "FoilDefaultStorageOptional.swift",
        "ObserverTrampoline.swift",
        "UserDefaults+Extensions.swift",
        "UserDefaultsSerializable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Foil",
    "schemes" : [
      "Foil"
    ],
    "targets" : [
      "Foil",
      "FoilTests"
    ]
  }
}
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 Foil -destination generic/platform=iOS
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 Foil -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Foil' in project 'Foil' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/Foil.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 13.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Foil' from project 'Foil')
note: Run script build phase 'Run SwiftLint' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Foil' from project 'Foil')
** BUILD FAILED **
The following build commands failed:
	Building project Foil with scheme Foil
(1 failure)
BUILD FAILURE 6.4 iOS