Swift Package Index

Build Information

Failed to build Demucs, reference main (326ca7), with Swift 6.2 for watchOS using Xcode 26.3 on 30 Sep 2026 14:30:45 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Demucs -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/SplitFireAI/demucs-swift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SplitFireAI/demucs-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 326ca71 Release 0.1.0
Cloned https://github.com/SplitFireAI/demucs-swift.git
Revision (git rev-parse @):
326ca71a2297bb9f20da56c67bd1d0701b6a3235
SUCCESS checkout https://github.com/SplitFireAI/demucs-swift.git at main
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.2
Building package at path:  $PWD
https://github.com/SplitFireAI/demucs-swift.git
Command line invocation:
    /Applications/Xcode-26.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Demucs: /Users/admin/builder/spi-builder-workspace
resolved source packages: Demucs
2026-09-30 10:30:18.064 xcodebuild[538:3115] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Demucs",
  "name" : "Demucs",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    },
    {
      "name" : "tvos",
      "version" : "16.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Demucs",
      "targets" : [
        "Demucs"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "DemucsTests",
      "module_type" : "SwiftTarget",
      "name" : "DemucsTests",
      "path" : "Tests/DemucsTests",
      "sources" : [
        "DemucsPublicTypesTests.swift"
      ],
      "target_dependencies" : [
        "Demucs"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DemucsFramework",
      "module_type" : "BinaryTarget",
      "name" : "DemucsFramework",
      "path" : "remote/archive/DemucsFramework.xcframework.zip",
      "product_memberships" : [
        "Demucs"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "Demucs",
      "module_type" : "SwiftTarget",
      "name" : "Demucs",
      "path" : "Sources/Demucs",
      "product_memberships" : [
        "Demucs"
      ],
      "sources" : [
        "DemucsEngine.swift",
        "demucs_ffi.swift"
      ],
      "target_dependencies" : [
        "DemucsFramework"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Demucs"
    ]
  }
}
2026-09-30 10:30:39.106 xcodebuild[687:4285] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Demucs -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.3.0.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 Demucs -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  Demucs: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'Demucs' in project 'Demucs'
        ➜ Explicit dependency on target 'Demucs' in project 'Demucs'
    Target 'Demucs' in project 'Demucs' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: e49a59c7b706edb6a14aa26da5ba0837
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/e49a59c7b706edb6a14aa26da5ba0837.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework'. (in target 'Demucs' from project 'Demucs')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework'. (in target 'Demucs' from project 'Demucs')
2026-09-30 10:30:40.568 xcodebuild[689:4335] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Demucs
(1 failure)
Command line invocation:
    /Applications/Xcode-26.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  Demucs: /Users/admin/builder/spi-builder-workspace
resolved source packages: Demucs
2026-09-30 10:30:43.032 xcodebuild[704:4443] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Demucs",
  "name" : "Demucs",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    },
    {
      "name" : "tvos",
      "version" : "16.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Demucs",
      "targets" : [
        "Demucs"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "DemucsTests",
      "module_type" : "SwiftTarget",
      "name" : "DemucsTests",
      "path" : "Tests/DemucsTests",
      "sources" : [
        "DemucsPublicTypesTests.swift"
      ],
      "target_dependencies" : [
        "Demucs"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DemucsFramework",
      "module_type" : "BinaryTarget",
      "name" : "DemucsFramework",
      "path" : "remote/archive/DemucsFramework.xcframework.zip",
      "product_memberships" : [
        "Demucs"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "Demucs",
      "module_type" : "SwiftTarget",
      "name" : "Demucs",
      "path" : "Sources/Demucs",
      "product_memberships" : [
        "Demucs"
      ],
      "sources" : [
        "DemucsEngine.swift",
        "demucs_ffi.swift"
      ],
      "target_dependencies" : [
        "DemucsFramework"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Demucs"
    ]
  }
}
2026-09-30 10:30:44.120 xcodebuild[712:4508] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Demucs -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.3.0.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 Demucs -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  Demucs: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'Demucs' in project 'Demucs'
        ➜ Explicit dependency on target 'Demucs' in project 'Demucs'
    Target 'Demucs' in project 'Demucs' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: e49a59c7b706edb6a14aa26da5ba0837
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/e49a59c7b706edb6a14aa26da5ba0837.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework'. (in target 'Demucs' from project 'Demucs')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DemucsFramework/DemucsFramework.xcframework'. (in target 'Demucs' from project 'Demucs')
2026-09-30 10:30:44.976 xcodebuild[714:4537] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Demucs
(1 failure)
BUILD FAILURE 6.2 watchOS