swift-differentiation – Build Information

Build Information

Failed to build swift-differentiation, reference 3.1.0 (1361b9), with Swift 6.1 for watchOS using Xcode 16.3 on 3 Sep 2026 00:09:34 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

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RunAll
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Builder version: 5.0.2
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/differentiable-swift/swift-differentiation.git
Reference: 3.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/differentiable-swift/swift-differentiation
 * tag               3.1.0      -> FETCH_HEAD
HEAD is now at 1361b9b fix: improve performance by directly implementing DifferentiableView.base methods instead of through protocol witnesses.
Cloned https://github.com/differentiable-swift/swift-differentiation.git
Revision (git rev-parse @):
1361b9b2efac345e082242179f6634fcc9ea17cc
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/differentiable-swift/swift-differentiation.git at 3.1.0
========================================
Build
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Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/differentiable-swift/swift-differentiation.git
https://github.com/differentiable-swift/swift-differentiation.git
{
  "dependencies" : [
    {
      "identity" : "swift-differentiation-stdlib",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "602.0.1",
            "upper_bound" : "603.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/differentiable-swift/swift-differentiation-stdlib.git"
    }
  ],
  "manifest_display_name" : "swift-differentiation",
  "name" : "swift-differentiation",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "26.0"
    },
    {
      "name" : "ios",
      "version" : "26.0"
    }
  ],
  "products" : [
    {
      "name" : "Differentiation",
      "targets" : [
        "Differentiation"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DifferentiationTests",
      "module_type" : "SwiftTarget",
      "name" : "DifferentiationTests",
      "path" : "Tests/DifferentiationTests",
      "sources" : [
        "Array+GatherTests.swift",
        "Array+InsertTests.swift",
        "Array+ScatteringAddTests.swift",
        "CTA/ArrayCTATests.swift",
        "CTA/ArraySliceCTATests.swift",
        "CTA/ContiguousArrayCTATests.swift",
        "Collection+DifferentiableMethodsTests.swift",
        "CollectionTests.swift",
        "DerivativesOfNativeFunctionsTests.swift",
        "Dictionary+ADTests.swift",
        "Dictionary+DifferentiationTests.swift",
        "DifferentiableViewTests.swift",
        "Foundation+VJPsTests.swift",
        "InlineArrayADTests.swift",
        "InlineArrayTests.swift",
        "Optional+DifferentiableMapTests.swift",
        "Repeated+DifferentiableTests.swift",
        "RunWithoutDerivativeTests.swift",
        "Sequence+MinMaxVJPsTests.swift",
        "Zip+DifferentiableTests.swift"
      ],
      "target_dependencies" : [
        "Differentiation"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Differentiation",
      "module_type" : "SwiftTarget",
      "name" : "Differentiation",
      "path" : "Sources/Differentiation",
      "product_dependencies" : [
        "_Differentiation"
      ],
      "product_memberships" : [
        "Differentiation"
      ],
      "sources" : [
        "Array+Gather.swift",
        "Array+Insert.swift",
        "Array+ScatteringAdd.swift",
        "CTAs/Array+CTA.swift",
        "CTAs/Array+CTASlice.swift",
        "CTAs/ArraySlice+CTA.swift",
        "CTAs/ArraySlice+CTASlice.swift",
        "CTAs/ContiguousArray+CTA.swift",
        "CTAs/ContiguousArray+CTASlice.swift",
        "DerivativesOfNativeFunctions.swift",
        "Dictionary+AD.swift",
        "Dictionary+Differentiation.swift",
        "DifferentiableCollection.swift",
        "DifferentiableCollections/Array+DifferentiableMethods.swift",
        "DifferentiableCollections/ArrayDifferentiableView+Collection.swift",
        "DifferentiableCollections/ArraySlice+Differentiable.swift",
        "DifferentiableCollections/ArraySlice+DifferentiableMethods.swift",
        "DifferentiableCollections/ArraySliceDifferentiableView+Collection.swift",
        "DifferentiableCollections/ArraySliceDifferentiableView.swift",
        "DifferentiableCollections/ContiguousArray+Differentiable.swift",
        "DifferentiableCollections/ContiguousArray+DifferentiableMethods.swift",
        "DifferentiableCollections/ContiguousArrayDifferentiableView+Collection.swift",
        "DifferentiableCollections/ContiguousArrayDifferentiableView.swift",
        "DifferentiableZip/ValueWithPullbackOverloads.swift",
        "DifferentiableZip/ZipSequence+Arity10.swift",
        "DifferentiableZip/ZipSequence+Arity11.swift",
        "DifferentiableZip/ZipSequence+Arity12.swift",
        "DifferentiableZip/ZipSequence+Arity13.swift",
        "DifferentiableZip/ZipSequence+Arity14.swift",
        "DifferentiableZip/ZipSequence+Arity2.swift",
        "DifferentiableZip/ZipSequence+Arity3.swift",
        "DifferentiableZip/ZipSequence+Arity4.swift",
        "DifferentiableZip/ZipSequence+Arity5.swift",
        "DifferentiableZip/ZipSequence+Arity6.swift",
        "DifferentiableZip/ZipSequence+Arity7.swift",
        "DifferentiableZip/ZipSequence+Arity8.swift",
        "DifferentiableZip/ZipSequence+Arity9.swift",
        "DifferentiableZip/ZipWith+Arity10.swift",
        "DifferentiableZip/ZipWith+Arity11.swift",
        "DifferentiableZip/ZipWith+Arity12.swift",
        "DifferentiableZip/ZipWith+Arity13.swift",
        "DifferentiableZip/ZipWith+Arity14.swift",
        "DifferentiableZip/ZipWith+Arity2.swift",
        "DifferentiableZip/ZipWith+Arity3.swift",
        "DifferentiableZip/ZipWith+Arity4.swift",
        "DifferentiableZip/ZipWith+Arity5.swift",
        "DifferentiableZip/ZipWith+Arity6.swift",
        "DifferentiableZip/ZipWith+Arity7.swift",
        "DifferentiableZip/ZipWith+Arity8.swift",
        "DifferentiableZip/ZipWith+Arity9.swift",
        "DifferentiableZip/ZipWithInout+Arity10.swift",
        "DifferentiableZip/ZipWithInout+Arity11.swift",
        "DifferentiableZip/ZipWithInout+Arity12.swift",
        "DifferentiableZip/ZipWithInout+Arity13.swift",
        "DifferentiableZip/ZipWithInout+Arity14.swift",
        "DifferentiableZip/ZipWithInout+Arity2.swift",
        "DifferentiableZip/ZipWithInout+Arity3.swift",
        "DifferentiableZip/ZipWithInout+Arity4.swift",
        "DifferentiableZip/ZipWithInout+Arity5.swift",
        "DifferentiableZip/ZipWithInout+Arity6.swift",
        "DifferentiableZip/ZipWithInout+Arity7.swift",
        "DifferentiableZip/ZipWithInout+Arity8.swift",
        "DifferentiableZip/ZipWithInout+Arity9.swift",
        "Differentiation.swift",
        "Foundation+VJPs.swift",
        "InlineArray+AD.swift",
        "InlineArray+Differentiation.swift",
        "Optional+DifferentiableMap.swift",
        "Repeated+Differentiable.swift",
        "RunWithoutDerivative.swift",
        "SIMDSTDLibOverloads/SIMD16+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD16+FloatSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD2+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD2+FloatSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD3+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD3+FloatSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD32+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD32+FloatSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD4+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD4+FloatSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD64+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD64+FloatSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD8+DoubleSTDLibOverloads.swift",
        "SIMDSTDLibOverloads/SIMD8+FloatSTDLibOverloads.swift",
        "Sequence+MinMaxVJPs.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/differentiable-swift/swift-differentiation-stdlib.git
Resolve Package Graph
Updating from https://github.com/differentiable-swift/swift-differentiation-stdlib.git
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-02 17:09:32.757 xcodebuild[526:2962] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-02-09_17-09-0032.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Failed to resolve dependencies Dependencies could not be resolved because 'swift-differentiation-stdlib' contains incompatible tools version (6.2.0) and root depends on 'swift-differentiation-stdlib' 602.0.1..<603.0.0.
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Updating from https://github.com/differentiable-swift/swift-differentiation-stdlib.git
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-02 17:09:34.033 xcodebuild[723:3994] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-02-09_17-09-0034.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Failed to resolve dependencies Dependencies could not be resolved because 'swift-differentiation-stdlib' contains incompatible tools version (6.2.0) and root depends on 'swift-differentiation-stdlib' 602.0.1..<603.0.0.
BUILD FAILURE 6.1 watchOS