The Swift Package Index logo.Swift Package Index

Build Information

Failed to build Compute, reference main (eda830), with Swift 6.4 for macOS (Xcode) using Xcode 27.0 on 24 Sep 2026 14:59:27 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 Compute-Package -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/schwa/Compute.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/schwa/Compute
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at eda8309 Update GitHub Actions to Node.js 24 compatible versions
Cloned https://github.com/schwa/Compute.git
Revision (git rev-parse @):
eda83091348c3cbaf735e59218ea1da36233a2eb
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/schwa/Compute.git at main
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.4
Building package at path:  $PWD
https://github.com/schwa/Compute.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/schwa/MetalCompilerPlugin
Creating working copy of package ‘MetalCompilerPlugin’
Checking out 0.3.0 of package ‘MetalCompilerPlugin’
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Compute: /Users/admin/builder/spi-builder-workspace
  MetalCompilerPlugin: https://github.com/schwa/MetalCompilerPlugin @ 0.3.0
resolved source packages: Compute, MetalCompilerPlugin
2026-09-24 10:58:42.233 xcodebuild[529:3018] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "metalcompilerplugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/schwa/MetalCompilerPlugin"
    }
  ],
  "manifest_display_name" : "Compute",
  "name" : "Compute",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "15.0"
    },
    {
      "name" : "ios",
      "version" : "18.0"
    }
  ],
  "products" : [
    {
      "name" : "Compute",
      "targets" : [
        "Compute"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Examples",
      "targets" : [
        "Examples"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MetalSupportLite",
      "module_type" : "SwiftTarget",
      "name" : "MetalSupportLite",
      "path" : "Sources/MetalSupportLite",
      "product_memberships" : [
        "Examples"
      ],
      "sources" : [
        "BaseSupport.swift",
        "MTLBuffer+Extensions.swift",
        "MetalBasicExtensions.swift",
        "MetalSupportLite.swift",
        "TypedMTLBuffer.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Examples",
      "module_type" : "SwiftTarget",
      "name" : "Examples",
      "path" : "Sources/Examples",
      "product_dependencies" : [
        "MetalCompilerPlugin"
      ],
      "product_memberships" : [
        "Examples"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Bundle.txt",
          "rule" : {
            "copy" : {
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Resources/Media.xcassets",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Examples.swift",
        "Examples/BareMetal.swift",
        "Examples/BitonicSort/BitonicSort.swift",
        "Examples/BufferFill.swift",
        "Examples/Checkerboard.swift",
        "Examples/CounterDemo.swift",
        "Examples/GameOfLife/GameOfLife.swift",
        "Examples/HelloWorldDemo.swift",
        "Examples/Histogram.swift",
        "Examples/ImageInvert.swift",
        "Examples/IsSorted.swift",
        "Examples/MaxParallel.swift",
        "Examples/MaxValue.swift",
        "Examples/MemcopyDemo.swift",
        "Examples/PrefixSum/PrefixSum.swift",
        "Examples/PrefixSum/PrefixSumKernel.swift",
        "Examples/RandomFill.swift",
        "Examples/SIMDReduce.swift",
        "Examples/ThreadgroupLog.swift",
        "Support.swift"
      ],
      "target_dependencies" : [
        "Compute",
        "MetalSupportLite"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ComputeTests",
      "module_type" : "SwiftTarget",
      "name" : "ComputeTests",
      "path" : "Tests/ComputeTests",
      "sources" : [
        "ComputeTests.swift"
      ],
      "target_dependencies" : [
        "Compute"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Compute",
      "module_type" : "SwiftTarget",
      "name" : "Compute",
      "path" : "Sources/Compute",
      "product_memberships" : [
        "Compute",
        "Examples"
      ],
      "sources" : [
        "Compute+Arguments.swift",
        "Compute+Pipeline.swift",
        "Compute+Task.swift",
        "Compute.swift",
        "ShaderFunction.swift",
        "Support.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "Compute",
    "schemes" : [
      "Compute",
      "Compute-Package",
      "Examples"
    ]
  }
}
2026-09-24 10:59:15.304 xcodebuild[695:4270] [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 Compute-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 Compute-Package -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  MetalCompilerPlugin: https://github.com/schwa/MetalCompilerPlugin @ 0.3.0
  Compute: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
Compile plug-in “MetalCompilerPlugin” in package “metalcompilerplugin”
[debug]: Compiling plugin to executable at /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/PluginExecutables/MetalCompilerPlugin
[debug]: Using compiler /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc
[debug]: Plugin compilation output directory '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/PluginExecutables'
[debug]: Computed hash of plugin compilation inputs: a472f46e45d76b03355d4a984490c58e515bdfafadca711dad664436556711d6
Apply build tool plug-in “MetalCompilerPlugin” to target “Examples” in package “spi-builder-workspace”
Using default configuration for MetalCompiler
Process build tool plug-in results
package: <IDESwiftPackageCore.IDESwiftPackage:0xaa7cade00 path:'/Users/admin/builder/spi-builder-workspace'>
    target: Examples
        prebuildCommandOutputPaths: []
        buildCommands: [SwiftPM.SPMCustomBuildCommand(displayName: Optional("metal"), executable: "/usr/bin/xcrun", arguments: ["metal", "-fmodules-cache-path=/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/cache", "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/GameOfLife/GameOfLife.metal", "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/BitonicSort/BitonicSort.metal", "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/PrefixSum/PrefixSumGPU.metal", "-o", "/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib", "-DMETAL"], environment: ["TMPDIR": "/private/tmp"], workingDir: nil, inputPaths: [SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/GameOfLife/GameOfLife.metal">), SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/BitonicSort/BitonicSort.metal">), SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/PrefixSum/PrefixSumGPU.metal">)], outputPaths: ["/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib"], pluginOutputDir: SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin">), sandboxProfile: Optional(SwiftPM.SPMSandboxProfile(strictness: Basics.Sandbox.Strictness.writableTemporaryDirectory, writableDirectories: [<AbsolutePath:"/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin">], readOnlyDirectories: [<AbsolutePath:"/Users/admin/builder/spi-builder-workspace">])))]
        allDerivedOutputPaths: [SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib">)]
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
    Target 'Examples-product' in project 'Compute'
        ➜ Explicit dependency on target 'Compute_Examples' in project 'Compute'
        ➜ Explicit dependency on target 'Compute' in project 'Compute'
        ➜ Explicit dependency on target 'MetalSupportLite' in project 'Compute'
        ➜ Explicit dependency on target 'MetalCompilerPlugin-product' in project 'MetalCompilerPlugin'
    Target 'MetalCompilerPlugin-product' in project 'MetalCompilerPlugin'
        ➜ Explicit dependency on target 'MetalCompilerPlugin' in project 'MetalCompilerPlugin'
    Target 'MetalSupportLite' in project 'Compute' (no dependencies)
    Target 'Compute_Examples' in project 'Compute'
        ➜ Explicit dependency on target 'MetalCompilerPlugin' in project 'MetalCompilerPlugin'
    Target 'MetalCompilerPlugin' in project 'MetalCompilerPlugin' (no dependencies)
    Target 'Compute-product' in project 'Compute'
        ➜ Explicit dependency on target 'Compute' in project 'Compute'
    Target 'Compute' in project 'Compute' (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/usr/bin/actool --version --output-format xml1
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: d11dff3a15ef253f408fec85e5fcaffa
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/d11dff3a15ef253f408fec85e5fcaffa.xcbuilddata
error: Multiple commands produce '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib'
    note: Target 'Compute_Examples' (project 'Compute') has copy command from '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib' to '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib'
    note: Target 'Compute_Examples' (project 'Compute'): MetalLink /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib
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/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/ModuleCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
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
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
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
warning: duplicate output file '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib' on task: MetalLink /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib (in target 'Compute_Examples' from project 'Compute')
2026-09-24 10:59:17.789 xcodebuild[697:4320] [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:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	Building workspace Compute with scheme Compute-Package
(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:
  MetalCompilerPlugin: https://github.com/schwa/MetalCompilerPlugin @ 0.3.0
  Compute: /Users/admin/builder/spi-builder-workspace
resolved source packages: MetalCompilerPlugin, Compute
2026-09-24 10:59:24.356 xcodebuild[732:4625] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "metalcompilerplugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/schwa/MetalCompilerPlugin"
    }
  ],
  "manifest_display_name" : "Compute",
  "name" : "Compute",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "15.0"
    },
    {
      "name" : "ios",
      "version" : "18.0"
    }
  ],
  "products" : [
    {
      "name" : "Compute",
      "targets" : [
        "Compute"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Examples",
      "targets" : [
        "Examples"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MetalSupportLite",
      "module_type" : "SwiftTarget",
      "name" : "MetalSupportLite",
      "path" : "Sources/MetalSupportLite",
      "product_memberships" : [
        "Examples"
      ],
      "sources" : [
        "BaseSupport.swift",
        "MTLBuffer+Extensions.swift",
        "MetalBasicExtensions.swift",
        "MetalSupportLite.swift",
        "TypedMTLBuffer.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Examples",
      "module_type" : "SwiftTarget",
      "name" : "Examples",
      "path" : "Sources/Examples",
      "product_dependencies" : [
        "MetalCompilerPlugin"
      ],
      "product_memberships" : [
        "Examples"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Bundle.txt",
          "rule" : {
            "copy" : {
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Resources/Media.xcassets",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Examples.swift",
        "Examples/BareMetal.swift",
        "Examples/BitonicSort/BitonicSort.swift",
        "Examples/BufferFill.swift",
        "Examples/Checkerboard.swift",
        "Examples/CounterDemo.swift",
        "Examples/GameOfLife/GameOfLife.swift",
        "Examples/HelloWorldDemo.swift",
        "Examples/Histogram.swift",
        "Examples/ImageInvert.swift",
        "Examples/IsSorted.swift",
        "Examples/MaxParallel.swift",
        "Examples/MaxValue.swift",
        "Examples/MemcopyDemo.swift",
        "Examples/PrefixSum/PrefixSum.swift",
        "Examples/PrefixSum/PrefixSumKernel.swift",
        "Examples/RandomFill.swift",
        "Examples/SIMDReduce.swift",
        "Examples/ThreadgroupLog.swift",
        "Support.swift"
      ],
      "target_dependencies" : [
        "Compute",
        "MetalSupportLite"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ComputeTests",
      "module_type" : "SwiftTarget",
      "name" : "ComputeTests",
      "path" : "Tests/ComputeTests",
      "sources" : [
        "ComputeTests.swift"
      ],
      "target_dependencies" : [
        "Compute"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Compute",
      "module_type" : "SwiftTarget",
      "name" : "Compute",
      "path" : "Sources/Compute",
      "product_memberships" : [
        "Compute",
        "Examples"
      ],
      "sources" : [
        "Compute+Arguments.swift",
        "Compute+Pipeline.swift",
        "Compute+Task.swift",
        "Compute.swift",
        "ShaderFunction.swift",
        "Support.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "Compute",
    "schemes" : [
      "Compute",
      "Compute-Package",
      "Examples"
    ]
  }
}
2026-09-24 10:59:25.764 xcodebuild[741:4687] [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 Compute-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 Compute-Package -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  Compute: /Users/admin/builder/spi-builder-workspace
  MetalCompilerPlugin: https://github.com/schwa/MetalCompilerPlugin @ 0.3.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
Compile plug-in “MetalCompilerPlugin” in package “metalcompilerplugin”
[debug]: Compiling plugin to executable at /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/PluginExecutables/MetalCompilerPlugin
[debug]: Using compiler /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc
[debug]: Plugin compilation output directory '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/PluginExecutables'
[debug]: Computed hash of plugin compilation inputs: a472f46e45d76b03355d4a984490c58e515bdfafadca711dad664436556711d6
Apply build tool plug-in “MetalCompilerPlugin” to target “Examples” in package “spi-builder-workspace”
Using default configuration for MetalCompiler
Process build tool plug-in results
package: <IDESwiftPackageCore.IDESwiftPackage:0xc0dca5e00 path:'/Users/admin/builder/spi-builder-workspace'>
    target: Examples
        prebuildCommandOutputPaths: []
        buildCommands: [SwiftPM.SPMCustomBuildCommand(displayName: Optional("metal"), executable: "/usr/bin/xcrun", arguments: ["metal", "-fmodules-cache-path=/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/cache", "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/GameOfLife/GameOfLife.metal", "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/BitonicSort/BitonicSort.metal", "/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/PrefixSum/PrefixSumGPU.metal", "-o", "/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib", "-DMETAL"], environment: ["TMPDIR": "/private/tmp"], workingDir: nil, inputPaths: [SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/GameOfLife/GameOfLife.metal">), SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/BitonicSort/BitonicSort.metal">), SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/Sources/Examples/Examples/PrefixSum/PrefixSumGPU.metal">)], outputPaths: ["/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib"], pluginOutputDir: SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin">), sandboxProfile: Optional(SwiftPM.SPMSandboxProfile(strictness: Basics.Sandbox.Strictness.writableTemporaryDirectory, writableDirectories: [<AbsolutePath:"/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin">], readOnlyDirectories: [<AbsolutePath:"/Users/admin/builder/spi-builder-workspace">])))]
        allDerivedOutputPaths: [SwiftPM.SPMAbsolutePath(absolutePath: <AbsolutePath:"/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib">)]
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
    Target 'Examples-product' in project 'Compute'
        ➜ Explicit dependency on target 'Compute_Examples' in project 'Compute'
        ➜ Explicit dependency on target 'Compute' in project 'Compute'
        ➜ Explicit dependency on target 'MetalSupportLite' in project 'Compute'
        ➜ Explicit dependency on target 'MetalCompilerPlugin-product' in project 'MetalCompilerPlugin'
    Target 'MetalCompilerPlugin-product' in project 'MetalCompilerPlugin'
        ➜ Explicit dependency on target 'MetalCompilerPlugin' in project 'MetalCompilerPlugin'
    Target 'MetalSupportLite' in project 'Compute' (no dependencies)
    Target 'Compute_Examples' in project 'Compute'
        ➜ Explicit dependency on target 'MetalCompilerPlugin' in project 'MetalCompilerPlugin'
    Target 'MetalCompilerPlugin' in project 'MetalCompilerPlugin' (no dependencies)
    Target 'Compute-product' in project 'Compute'
        ➜ Explicit dependency on target 'Compute' in project 'Compute'
    Target 'Compute' in project 'Compute' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: Multiple commands produce '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib'
    note: Target 'Compute_Examples' (project 'Compute') has copy command from '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/BuildToolPluginIntermediates/spi-builder-workspace.output/Examples/MetalCompilerPlugin/default.metallib' to '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib'
    note: Target 'Compute_Examples' (project 'Compute'): MetalLink /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib
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
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
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
warning: duplicate output file '/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib' on task: MetalLink /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Compute_Examples.bundle/Contents/Resources/default.metallib (in target 'Compute_Examples' from project 'Compute')
2026-09-24 10:59:26.855 xcodebuild[743:4715] [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:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:140384d4a0e44d73491d30f8a0f37cdc9ae65db9, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	Building workspace Compute with scheme Compute-Package
(1 failure)
BUILD FAILURE 6.4 macosXcodebuild