Swift Package IndexBuild Information
Failed to build SIMDson, reference v0.0.1 (42292a), with Swift 6.3 for watchOS using Xcode 26.4 on 14 Apr 2026 21:26:55 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SIMDson -destination generic/platform=watchOSBuild Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Catterwaul/SIMDson.git
Reference: v0.0.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Catterwaul/SIMDson
* tag v0.0.1 -> FETCH_HEAD
HEAD is now at 42292a4 Add matrix requirements
Cloned https://github.com/Catterwaul/SIMDson.git
Revision (git rev-parse @):
42292a4b3a27ccdcbbef3bea1dd4c5753c4501a1
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Catterwaul/SIMDson.git at v0.0.1
========================================
Build
========================================
Selected platform: watchOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/Catterwaul/SIMDson.git
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/swiftlang/swift-docc-plugin
Fetching from https://github.com/apple/swift-algorithms
Fetching from https://github.com/Catterwaul/Tuplay
Fetching from https://github.com/Catterwaul/Thrappture
Fetching from https://github.com/apple/swift-numerics.git
Fetching from https://github.com/swiftlang/swift-docc-symbolkit
Creating working copy of package ‘Thrappture’
Checking out main (d930cd6) of package ‘Thrappture’
Creating working copy of package ‘swift-docc-symbolkit’
Checking out 1.0.0 of package ‘swift-docc-symbolkit’
Creating working copy of package ‘swift-numerics’
Checking out 1.1.1 of package ‘swift-numerics’
Creating working copy of package ‘Tuplay’
Checking out main (8d14006) of package ‘Tuplay’
Creating working copy of package ‘swift-algorithms’
Checking out main (0b43769) of package ‘swift-algorithms’
Creating working copy of package ‘swift-docc-plugin’
Checking out main (e977f65) of package ‘swift-docc-plugin’
Resolve Package Graph
Resolved source packages:
swift-numerics: https://github.com/apple/swift-numerics.git @ 1.1.1
SIMDson: /Users/admin/builder/spi-builder-workspace
Thrappture: https://github.com/Catterwaul/Thrappture @ main (d930cd6)
swift-algorithms: https://github.com/apple/swift-algorithms @ main (0b43769)
SymbolKit: https://github.com/swiftlang/swift-docc-symbolkit @ 1.0.0
Tuplé: https://github.com/Catterwaul/Tuplay @ main (8d14006)
SwiftDocCPlugin: https://github.com/swiftlang/swift-docc-plugin @ main (e977f65)
resolved source packages: swift-numerics, SIMDson, Thrappture, swift-algorithms, SymbolKit, Tuplé, SwiftDocCPlugin
2026-04-14 17:25:53.590 xcodebuild[529:3078] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-docc-plugin",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-docc-plugin"
},
{
"identity" : "swift-algorithms",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-algorithms"
},
{
"identity" : "tuplay",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/Catterwaul/Tuplay"
}
],
"manifest_display_name" : "SIMDson",
"name" : "SIMDson",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "16.0"
},
{
"name" : "macos",
"version" : "14.0"
}
],
"products" : [
{
"name" : "SIMDson",
"targets" : [
"SIMDson"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SIMDson_Tests",
"module_type" : "SwiftTarget",
"name" : "SIMDson.Tests",
"path" : "Tests",
"sources" : [
"MatrixTests.swift",
"SIMDTests.swift",
"SpatialTests.swift",
"VectorTests.swift"
],
"target_dependencies" : [
"SIMDson"
],
"type" : "test"
},
{
"c99name" : "SIMDson",
"module_type" : "SwiftTarget",
"name" : "SIMDson",
"path" : "Sources",
"product_dependencies" : [
"Algorithms",
"Tuplé"
],
"product_memberships" : [
"SIMDson"
],
"sources" : [
"FloatingPoint/Matrix/Matrix.swift",
"FloatingPoint/Matrix/Matrix2x2.swift",
"FloatingPoint/Matrix/Matrix2x3.swift",
"FloatingPoint/Matrix/Matrix2x4.swift",
"FloatingPoint/Matrix/Matrix3x2.swift",
"FloatingPoint/Matrix/Matrix3x3.swift",
"FloatingPoint/Matrix/Matrix3x4.swift",
"FloatingPoint/Matrix/Matrix4x4.swift",
"FloatingPoint/Quaternion.swift",
"FloatingPoint/Scalar/Double+FloatingPointScalar.swift",
"FloatingPoint/Scalar/Float+FloatingPointScalar.swift",
"FloatingPoint/Scalar/FloatingPointScalar.swift",
"FloatingPoint/Vector/FloatingPointVector.swift",
"FloatingPoint/Vector/Normalized.swift",
"FloatingPoint/Vector/SIMD2+FloatingPointVector.swift",
"FloatingPoint/Vector/SIMD3+FloatingPointVector.swift",
"FloatingPoint/Vector/SIMD4+FloatingPointVector.swift",
"SIMD.swift",
"Spatial.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"SIMDson"
]
}
}
2026-04-14 17:26:16.375 xcodebuild[973:5652] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SIMDson -destination generic/platform=watchOS
Command line invocation:
/Applications/Xcode-26.4.0.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 SIMDson -destination generic/platform=watchOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
SymbolKit: https://github.com/swiftlang/swift-docc-symbolkit @ 1.0.0
swift-algorithms: https://github.com/apple/swift-algorithms @ main (0b43769)
SwiftDocCPlugin: https://github.com/swiftlang/swift-docc-plugin @ main (e977f65)
swift-numerics: https://github.com/apple/swift-numerics.git @ 1.1.1
SIMDson: /Users/admin/builder/spi-builder-workspace
Tuplé: https://github.com/Catterwaul/Tuplay @ main (8d14006)
Thrappture: https://github.com/Catterwaul/Thrappture @ main (d930cd6)
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
Target 'SIMDson' in project 'SIMDson'
➜ Explicit dependency on target 'SIMDson' in project 'SIMDson'
➜ Explicit dependency on target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'Tuplé' in project 'Tuplé'
Target 'SIMDson' in project 'SIMDson'
➜ Explicit dependency on target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'Tuplé' in project 'Tuplé'
Target 'Tuplé' in project 'Tuplé'
➜ Explicit dependency on target 'Tuplé' in project 'Tuplé'
➜ Explicit dependency on target 'Thrappture' in project 'Thrappture'
Target 'Tuplé' in project 'Tuplé'
➜ Explicit dependency on target 'Thrappture' in project 'Thrappture'
Target 'Thrappture' in project 'Thrappture'
➜ Explicit dependency on target 'Thrappture' in project 'Thrappture'
Target 'Thrappture' in project 'Thrappture' (no dependencies)
Target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
Target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
Target 'RealModule' in project 'swift-numerics'
➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
Target 'RealModule' in project 'swift-numerics'
➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
Target '_NumericsShims' in project 'swift-numerics' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch armv7k -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ReadFileContents /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 85b14a85f924142bf7aeb04020b962e6
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/85b14a85f924142bf7aeb04020b962e6.xcbuilddata
error: The package product 'Tuplé' requires minimum platform version 10.0 for the watchOS platform, but this target supports 9.0 (in target 'SIMDson' from project 'SIMDson')
2026-04-14 17:26:27.032 xcodebuild[1045:6085] [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 SIMDson
(1 failure)
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
Tuplé: https://github.com/Catterwaul/Tuplay @ main (8d14006)
Thrappture: https://github.com/Catterwaul/Thrappture @ main (d930cd6)
SwiftDocCPlugin: https://github.com/swiftlang/swift-docc-plugin @ main (e977f65)
swift-algorithms: https://github.com/apple/swift-algorithms @ main (0b43769)
SymbolKit: https://github.com/swiftlang/swift-docc-symbolkit @ 1.0.0
SIMDson: /Users/admin/builder/spi-builder-workspace
swift-numerics: https://github.com/apple/swift-numerics.git @ 1.1.1
resolved source packages: Tuplé, Thrappture, SwiftDocCPlugin, swift-algorithms, SymbolKit, SIMDson, swift-numerics
2026-04-14 17:26:41.002 xcodebuild[1250:7217] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-docc-plugin",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-docc-plugin"
},
{
"identity" : "swift-algorithms",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-algorithms"
},
{
"identity" : "tuplay",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/Catterwaul/Tuplay"
}
],
"manifest_display_name" : "SIMDson",
"name" : "SIMDson",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "16.0"
},
{
"name" : "macos",
"version" : "14.0"
}
],
"products" : [
{
"name" : "SIMDson",
"targets" : [
"SIMDson"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SIMDson_Tests",
"module_type" : "SwiftTarget",
"name" : "SIMDson.Tests",
"path" : "Tests",
"sources" : [
"MatrixTests.swift",
"SIMDTests.swift",
"SpatialTests.swift",
"VectorTests.swift"
],
"target_dependencies" : [
"SIMDson"
],
"type" : "test"
},
{
"c99name" : "SIMDson",
"module_type" : "SwiftTarget",
"name" : "SIMDson",
"path" : "Sources",
"product_dependencies" : [
"Algorithms",
"Tuplé"
],
"product_memberships" : [
"SIMDson"
],
"sources" : [
"FloatingPoint/Matrix/Matrix.swift",
"FloatingPoint/Matrix/Matrix2x2.swift",
"FloatingPoint/Matrix/Matrix2x3.swift",
"FloatingPoint/Matrix/Matrix2x4.swift",
"FloatingPoint/Matrix/Matrix3x2.swift",
"FloatingPoint/Matrix/Matrix3x3.swift",
"FloatingPoint/Matrix/Matrix3x4.swift",
"FloatingPoint/Matrix/Matrix4x4.swift",
"FloatingPoint/Quaternion.swift",
"FloatingPoint/Scalar/Double+FloatingPointScalar.swift",
"FloatingPoint/Scalar/Float+FloatingPointScalar.swift",
"FloatingPoint/Scalar/FloatingPointScalar.swift",
"FloatingPoint/Vector/FloatingPointVector.swift",
"FloatingPoint/Vector/Normalized.swift",
"FloatingPoint/Vector/SIMD2+FloatingPointVector.swift",
"FloatingPoint/Vector/SIMD3+FloatingPointVector.swift",
"FloatingPoint/Vector/SIMD4+FloatingPointVector.swift",
"SIMD.swift",
"Spatial.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"SIMDson"
]
}
}
2026-04-14 17:26:47.981 xcodebuild[1327:7675] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SIMDson -destination generic/platform=watchOS
Command line invocation:
/Applications/Xcode-26.4.0.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 SIMDson -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
Thrappture: https://github.com/Catterwaul/Thrappture @ main (d930cd6)
swift-numerics: https://github.com/apple/swift-numerics.git @ 1.1.1
SymbolKit: https://github.com/swiftlang/swift-docc-symbolkit @ 1.0.0
SIMDson: /Users/admin/builder/spi-builder-workspace
swift-algorithms: https://github.com/apple/swift-algorithms @ main (0b43769)
Tuplé: https://github.com/Catterwaul/Tuplay @ main (8d14006)
SwiftDocCPlugin: https://github.com/swiftlang/swift-docc-plugin @ main (e977f65)
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
Target 'SIMDson' in project 'SIMDson'
➜ Explicit dependency on target 'SIMDson' in project 'SIMDson'
➜ Explicit dependency on target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'Tuplé' in project 'Tuplé'
Target 'SIMDson' in project 'SIMDson'
➜ Explicit dependency on target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'Tuplé' in project 'Tuplé'
Target 'Tuplé' in project 'Tuplé'
➜ Explicit dependency on target 'Tuplé' in project 'Tuplé'
➜ Explicit dependency on target 'Thrappture' in project 'Thrappture'
Target 'Tuplé' in project 'Tuplé'
➜ Explicit dependency on target 'Thrappture' in project 'Thrappture'
Target 'Thrappture' in project 'Thrappture'
➜ Explicit dependency on target 'Thrappture' in project 'Thrappture'
Target 'Thrappture' in project 'Thrappture' (no dependencies)
Target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
Target 'Algorithms' in project 'swift-algorithms'
➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
Target 'RealModule' in project 'swift-numerics'
➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
Target 'RealModule' in project 'swift-numerics'
➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
Target '_NumericsShims' in project 'swift-numerics' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch armv7k -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ReadFileContents /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 85b14a85f924142bf7aeb04020b962e6
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/85b14a85f924142bf7aeb04020b962e6.xcbuilddata
error: The package product 'Tuplé' requires minimum platform version 10.0 for the watchOS platform, but this target supports 9.0 (in target 'SIMDson' from project 'SIMDson')
2026-04-14 17:26:54.633 xcodebuild[1397:8094] [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 SIMDson
(1 failure)
BUILD FAILURE 6.3 watchOS