Swift Package Index

Build Information

Failed to build CellKit, reference main (a6f457), with Swift 6.4 for macOS (Xcode) using Xcode 27.0 on 28 Sep 2026 00:19:48 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 CellKit-Package -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/futuredapp/CellKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/futuredapp/CellKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a6f457d Merge pull request #55 from futuredapp/feature/default-main-actor-isolation
Cloned https://github.com/futuredapp/CellKit.git
Revision (git rev-parse @):
a6f457d6d10cfac307814f604a8e24a129553434
SUCCESS checkout https://github.com/futuredapp/CellKit.git at main
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.4
Building package at path:  $PWD
https://github.com/futuredapp/CellKit.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/ra1028/DifferenceKit.git
Creating working copy of package ‘DifferenceKit’
Checking out 1.3.0 of package ‘DifferenceKit’
Resolve Package Graph
Resolved source packages:
  CellKit: /Users/admin/builder/spi-builder-workspace
  DifferenceKit: https://github.com/ra1028/DifferenceKit.git @ 1.3.0
resolved source packages: CellKit, DifferenceKit
2026-09-27 20:19:05.331 xcodebuild[529:3021] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "differencekit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ra1028/DifferenceKit.git"
    }
  ],
  "manifest_display_name" : "CellKit",
  "name" : "CellKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "CellKit",
      "targets" : [
        "CellKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "DiffableCellKit",
      "targets" : [
        "DiffableCellKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DiffableCellKit",
      "module_type" : "SwiftTarget",
      "name" : "DiffableCellKit",
      "path" : "Sources/DiffableCellKit",
      "product_dependencies" : [
        "DifferenceKit"
      ],
      "product_memberships" : [
        "DiffableCellKit"
      ],
      "sources" : [
        "DifferentiableCellModel.swift",
        "DifferentiableCellModelDataSource.swift",
        "DifferentiableCellModelSection.swift"
      ],
      "target_dependencies" : [
        "CellKit"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CellKit",
      "module_type" : "SwiftTarget",
      "name" : "CellKit",
      "path" : "Sources/CellKit",
      "product_memberships" : [
        "CellKit",
        "DiffableCellKit"
      ],
      "sources" : [
        "CellConfigurable.swift",
        "CellConvertible.swift",
        "CellModel.swift",
        "CellModelDataSource.swift",
        "CellModelSection.swift",
        "CellModelSelectable.swift",
        "CollectionReusableView.swift",
        "DataSource.swift",
        "DiffableDataSources/CollectionSupplementaryViewModel.swift",
        "DiffableDataSources/LazyCellProvider.swift",
        "DiffableDataSources/LazySupplementaryViewProvider.swift",
        "DiffableDataSources/SupplementaryElementKind.swift",
        "ReusableView.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "CellKit",
    "schemes" : [
      "CellKit",
      "CellKit-Package",
      "DiffableCellKit"
    ]
  }
}
2026-09-27 20:19:37.506 xcodebuild[685:4215] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
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 CellKit-Package -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 CellKit-Package -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  CellKit: /Users/admin/builder/spi-builder-workspace
  DifferenceKit: https://github.com/ra1028/DifferenceKit.git @ 1.3.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (6 targets)
    Target 'DiffableCellKit-product' in project 'CellKit'
        ➜ Explicit dependency on target 'DiffableCellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'CellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'DifferenceKit-product' in project 'DifferenceKit'
    Target 'DiffableCellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'CellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'DifferenceKit-product' in project 'DifferenceKit'
    Target 'DifferenceKit-product' in project 'DifferenceKit'
        ➜ Explicit dependency on target 'DifferenceKit' in project 'DifferenceKit'
    Target 'DifferenceKit' in project 'DifferenceKit' (no dependencies)
    Target 'CellKit-product' in project 'CellKit'
        ➜ Explicit dependency on target 'CellKit' in project 'CellKit'
    Target 'CellKit' in project 'CellKit' (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: eb33175719e4db471c2114b3dbeb3b9a
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/eb33175719e4db471c2114b3dbeb3b9a.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.DependencyStaticMetadataFileList (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.DependencyMetadataFileList (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.modulemap (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-OutputFileMap.json (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.LinkFileList (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit_const_extract_protocols.json (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.SwiftFileList (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.SwiftConstValuesFileList (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.modulemap (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit.LinkFileList (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit-OutputFileMap.json (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit.SwiftConstValuesFileList (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit_const_extract_protocols.json (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit.SwiftFileList (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/Objects-normal/arm64/DiffableCellKit.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.DependencyStaticMetadataFileList (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.DependencyStaticMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/DifferenceKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.modulemap (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/DifferenceKit
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DifferenceKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.DependencyMetadataFileList (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.DependencyMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/DiffableCellKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.modulemap (in target 'DiffableCellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/DiffableCellKit-t.build/DiffableCellKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.modulemap (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.LinkFileList (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit_const_extract_protocols.json (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.SwiftConstValuesFileList (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.SwiftFileList (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-OutputFileMap.json (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.DependencyStaticMetadataFileList (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.DependencyMetadataFileList (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.DependencyMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/CellKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.modulemap (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/CellKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver DifferenceKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name DifferenceKit -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -suppress-warnings -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver CellKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name CellKit -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -default-isolation MainActor -enable-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature InferIsolatedConformances -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/CollectionReusableView.swift:1:8: error: Unable to resolve module dependency: 'UIKit' (in target 'CellKit' from project 'CellKit')
    note: A dependency of main module 'CellKit'
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DataSource.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazyCellProvider.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazySupplementaryViewProvider.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/SupplementaryElementKind.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/ReusableView.swift:2:14: note: Also imported here
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/CollectionReusableView.swift:1:8: note: A dependency of main module 'CellKit'
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DataSource.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazyCellProvider.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazySupplementaryViewProvider.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/SupplementaryElementKind.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/ReusableView.swift:2:14: note: Also imported here
import class UIKit.UINib
             ^ (in target 'CellKit' from project 'CellKit')
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
2026-09-27 20:19:39.764 xcodebuild[687:4267] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftDriver CellKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CellKit' from project 'CellKit')
	Building workspace CellKit with scheme CellKit-Package
(2 failures)
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:
  DifferenceKit: https://github.com/ra1028/DifferenceKit.git @ 1.3.0
  CellKit: /Users/admin/builder/spi-builder-workspace
resolved source packages: DifferenceKit, CellKit
2026-09-27 20:19:44.984 xcodebuild[710:4553] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "differencekit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ra1028/DifferenceKit.git"
    }
  ],
  "manifest_display_name" : "CellKit",
  "name" : "CellKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "CellKit",
      "targets" : [
        "CellKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "DiffableCellKit",
      "targets" : [
        "DiffableCellKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DiffableCellKit",
      "module_type" : "SwiftTarget",
      "name" : "DiffableCellKit",
      "path" : "Sources/DiffableCellKit",
      "product_dependencies" : [
        "DifferenceKit"
      ],
      "product_memberships" : [
        "DiffableCellKit"
      ],
      "sources" : [
        "DifferentiableCellModel.swift",
        "DifferentiableCellModelDataSource.swift",
        "DifferentiableCellModelSection.swift"
      ],
      "target_dependencies" : [
        "CellKit"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CellKit",
      "module_type" : "SwiftTarget",
      "name" : "CellKit",
      "path" : "Sources/CellKit",
      "product_memberships" : [
        "CellKit",
        "DiffableCellKit"
      ],
      "sources" : [
        "CellConfigurable.swift",
        "CellConvertible.swift",
        "CellModel.swift",
        "CellModelDataSource.swift",
        "CellModelSection.swift",
        "CellModelSelectable.swift",
        "CollectionReusableView.swift",
        "DataSource.swift",
        "DiffableDataSources/CollectionSupplementaryViewModel.swift",
        "DiffableDataSources/LazyCellProvider.swift",
        "DiffableDataSources/LazySupplementaryViewProvider.swift",
        "DiffableDataSources/SupplementaryElementKind.swift",
        "ReusableView.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "CellKit",
    "schemes" : [
      "CellKit",
      "CellKit-Package",
      "DiffableCellKit"
    ]
  }
}
2026-09-27 20:19:46.235 xcodebuild[718:4618] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
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 CellKit-Package -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 CellKit-Package -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  DifferenceKit: https://github.com/ra1028/DifferenceKit.git @ 1.3.0
  CellKit: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (6 targets)
    Target 'DiffableCellKit-product' in project 'CellKit'
        ➜ Explicit dependency on target 'DiffableCellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'CellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'DifferenceKit-product' in project 'DifferenceKit'
    Target 'DiffableCellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'CellKit' in project 'CellKit'
        ➜ Explicit dependency on target 'DifferenceKit-product' in project 'DifferenceKit'
    Target 'DifferenceKit-product' in project 'DifferenceKit'
        ➜ Explicit dependency on target 'DifferenceKit' in project 'DifferenceKit'
    Target 'DifferenceKit' in project 'DifferenceKit' (no dependencies)
    Target 'CellKit-product' in project 'CellKit'
        ➜ Explicit dependency on target 'CellKit' in project 'CellKit'
    Target 'CellKit' in project 'CellKit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache
SwiftDriver CellKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CellKit' from project 'CellKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name CellKit -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -default-isolation MainActor -enable-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature InferIsolatedConformances -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CellKit.build/Debug/CellKit-t.build/Objects-normal/arm64/CellKit-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/CollectionReusableView.swift:1:8: error: Unable to resolve module dependency: 'UIKit' (in target 'CellKit' from project 'CellKit')
    note: A dependency of main module 'CellKit'
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DataSource.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazyCellProvider.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazySupplementaryViewProvider.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/SupplementaryElementKind.swift:1:8: note: Also imported here
    /Users/admin/builder/spi-builder-workspace/Sources/CellKit/ReusableView.swift:2:14: note: Also imported here
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/CollectionReusableView.swift:1:8: note: A dependency of main module 'CellKit'
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DataSource.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazyCellProvider.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/LazySupplementaryViewProvider.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/DiffableDataSources/SupplementaryElementKind.swift:1:8: note: Also imported here
import UIKit
       ^ (in target 'CellKit' from project 'CellKit')
/Users/admin/builder/spi-builder-workspace/Sources/CellKit/ReusableView.swift:2:14: note: Also imported here
import class UIKit.UINib
             ^ (in target 'CellKit' from project 'CellKit')
SwiftDriver DifferenceKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'DifferenceKit' from project 'DifferenceKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name DifferenceKit -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -suppress-warnings -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-OutputFileMap.json -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/DifferenceKit.build/Debug/DifferenceKit-t.build/Objects-normal/arm64/DifferenceKit-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-27 20:19:47.216 xcodebuild[719:4643] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:b4008f00a2121356bdacc1a4318f1c4ba3b46ec2, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftDriver CellKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CellKit' from project 'CellKit')
	Building workspace CellKit with scheme CellKit-Package
(2 failures)
BUILD FAILURE 6.4 macosXcodebuild