Swift Package IndexBuild Information
Failed to build SwiftUtilities, reference main (9948d3), with Swift 6.3 for watchOS using Xcode 26.4 on 30 Apr 2026 11:22:24 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftUtilities -destination generic/platform=watchOSBuild Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/stefanspringer1/SwiftUtilities.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/stefanspringer1/SwiftUtilities
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 9948d3a append(relativePath:)/appending(relativePath:) nowe understands "."
Cloned https://github.com/stefanspringer1/SwiftUtilities.git
Revision (git rev-parse @):
9948d3aec9d1320c8760e31f525e479fada7606f
SUCCESS checkout https://github.com/stefanspringer1/SwiftUtilities.git at main
========================================
Build
========================================
Selected platform: watchOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/stefanspringer1/SwiftUtilities.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/stefanspringer1/AutoreleasepoolShim
Fetching from https://github.com/apple/swift-argument-parser
Fetching from https://github.com/swiftlang/swift-subprocess.git
Fetching from https://github.com/apple/swift-system
Creating working copy of package ‘swift-subprocess’
Checking out 0.4.0 of package ‘swift-subprocess’
Creating working copy of package ‘swift-argument-parser’
Checking out 1.7.1 of package ‘swift-argument-parser’
Creating working copy of package ‘AutoreleasepoolShim’
Checking out 1.0.3 of package ‘AutoreleasepoolShim’
Creating working copy of package ‘swift-system’
Checking out 1.6.4 of package ‘swift-system’
Resolve Package Graph
Resolved source packages:
Subprocess: https://github.com/swiftlang/swift-subprocess.git @ 0.4.0
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.7.1
swift-system: https://github.com/apple/swift-system @ 1.6.4
AutoreleasepoolShim: https://github.com/stefanspringer1/AutoreleasepoolShim @ 1.0.3
SwiftUtilities: /Users/admin/builder/spi-builder-workspace
resolved source packages: Subprocess, swift-argument-parser, swift-system, AutoreleasepoolShim, SwiftUtilities
2026-04-30 07:22:03.203 xcodebuild[536:3133] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-argument-parser",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.1",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-argument-parser"
},
{
"identity" : "autoreleasepoolshim",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.3",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/stefanspringer1/AutoreleasepoolShim"
},
{
"identity" : "swift-subprocess",
"requirement" : {
"range" : [
{
"lower_bound" : "0.4.0",
"upper_bound" : "1.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-subprocess.git"
}
],
"manifest_display_name" : "SwiftUtilities",
"name" : "SwiftUtilities",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "16.0"
},
{
"name" : "macos",
"version" : "13.0"
},
{
"name" : "tvos",
"version" : "16.0"
},
{
"name" : "watchos",
"version" : "9.0"
}
],
"products" : [
{
"name" : "Utilities",
"targets" : [
"Utilities"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "UtilitiesTests",
"module_type" : "SwiftTarget",
"name" : "UtilitiesTests",
"path" : "Tests/UtilitiesTests",
"sources" : [
"SwiftUtilitiesTests.swift"
],
"target_dependencies" : [
"Utilities"
],
"type" : "test"
},
{
"c99name" : "Utilities",
"module_type" : "SwiftTarget",
"name" : "Utilities",
"path" : "Sources/Utilities",
"product_dependencies" : [
"ArgumentParser",
"AutoreleasepoolShim",
"Subprocess"
],
"product_memberships" : [
"Utilities"
],
"sources" : [
"CharacterEntities1.swift",
"CharacterEntities2.swift",
"CharacterEntities3.swift",
"CharacterUtilities.swift",
"DataTypes.swift",
"Encoding.swift",
"Errors.swift",
"FileUtilities.swift",
"Lengths.swift",
"Parallel.swift",
"Process.swift",
"Properties.swift",
"SequenceUtilities.swift",
"StringUtilities.swift",
"SystemUtilities.swift",
"TimeUtilities.swift"
],
"type" : "library"
}
],
"tools_version" : "5.9"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"SwiftUtilities"
]
}
}
2026-04-30 07:22:12.037 xcodebuild[792:4669] [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 SwiftUtilities -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 SwiftUtilities -destination generic/platform=watchOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
AutoreleasepoolShim: https://github.com/stefanspringer1/AutoreleasepoolShim @ 1.0.3
SwiftUtilities: /Users/admin/builder/spi-builder-workspace
Subprocess: https://github.com/swiftlang/swift-subprocess.git @ 0.4.0
swift-system: https://github.com/apple/swift-system @ 1.6.4
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.7.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (13 targets)
Target 'Utilities' in project 'SwiftUtilities'
➜ Explicit dependency on target 'Utilities' in project 'SwiftUtilities'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
➜ Explicit dependency on target 'Subprocess' in project 'Subprocess'
Target 'Utilities' in project 'SwiftUtilities'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
➜ Explicit dependency on target 'Subprocess' in project 'Subprocess'
Target 'Subprocess' in project 'Subprocess'
➜ Explicit dependency on target 'Subprocess' in project 'Subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'Subprocess'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
Target 'Subprocess' in project 'Subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'Subprocess'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'CSystem' in project 'swift-system' (no dependencies)
Target '_SubprocessCShims' in project 'Subprocess' (no dependencies)
Target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
➜ Explicit dependency on target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
Target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim' (no dependencies)
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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 -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/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: 5df3b338768bd7571a2922cfe1bcba13
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/5df3b338768bd7571a2922cfe1bcba13.xcbuilddata
error: The package product 'Subprocess' requires minimum platform version 26.4 for the watchOS platform, but this target supports 9.0 (in target 'Utilities' from project 'SwiftUtilities')
2026-04-30 07:22:15.972 xcodebuild[805:4766] [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 SwiftUtilities
(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:
Subprocess: https://github.com/swiftlang/swift-subprocess.git @ 0.4.0
swift-system: https://github.com/apple/swift-system @ 1.6.4
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.7.1
AutoreleasepoolShim: https://github.com/stefanspringer1/AutoreleasepoolShim @ 1.0.3
SwiftUtilities: /Users/admin/builder/spi-builder-workspace
resolved source packages: Subprocess, swift-system, swift-argument-parser, AutoreleasepoolShim, SwiftUtilities
2026-04-30 07:22:19.934 xcodebuild[898:5350] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-argument-parser",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.1",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-argument-parser"
},
{
"identity" : "autoreleasepoolshim",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.3",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/stefanspringer1/AutoreleasepoolShim"
},
{
"identity" : "swift-subprocess",
"requirement" : {
"range" : [
{
"lower_bound" : "0.4.0",
"upper_bound" : "1.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-subprocess.git"
}
],
"manifest_display_name" : "SwiftUtilities",
"name" : "SwiftUtilities",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "16.0"
},
{
"name" : "macos",
"version" : "13.0"
},
{
"name" : "tvos",
"version" : "16.0"
},
{
"name" : "watchos",
"version" : "9.0"
}
],
"products" : [
{
"name" : "Utilities",
"targets" : [
"Utilities"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "UtilitiesTests",
"module_type" : "SwiftTarget",
"name" : "UtilitiesTests",
"path" : "Tests/UtilitiesTests",
"sources" : [
"SwiftUtilitiesTests.swift"
],
"target_dependencies" : [
"Utilities"
],
"type" : "test"
},
{
"c99name" : "Utilities",
"module_type" : "SwiftTarget",
"name" : "Utilities",
"path" : "Sources/Utilities",
"product_dependencies" : [
"ArgumentParser",
"AutoreleasepoolShim",
"Subprocess"
],
"product_memberships" : [
"Utilities"
],
"sources" : [
"CharacterEntities1.swift",
"CharacterEntities2.swift",
"CharacterEntities3.swift",
"CharacterUtilities.swift",
"DataTypes.swift",
"Encoding.swift",
"Errors.swift",
"FileUtilities.swift",
"Lengths.swift",
"Parallel.swift",
"Process.swift",
"Properties.swift",
"SequenceUtilities.swift",
"StringUtilities.swift",
"SystemUtilities.swift",
"TimeUtilities.swift"
],
"type" : "library"
}
],
"tools_version" : "5.9"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"SwiftUtilities"
]
}
}
2026-04-30 07:22:21.964 xcodebuild[918:5488] [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 SwiftUtilities -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 SwiftUtilities -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
AutoreleasepoolShim: https://github.com/stefanspringer1/AutoreleasepoolShim @ 1.0.3
SwiftUtilities: /Users/admin/builder/spi-builder-workspace
Subprocess: https://github.com/swiftlang/swift-subprocess.git @ 0.4.0
swift-system: https://github.com/apple/swift-system @ 1.6.4
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.7.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (13 targets)
Target 'Utilities' in project 'SwiftUtilities'
➜ Explicit dependency on target 'Utilities' in project 'SwiftUtilities'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
➜ Explicit dependency on target 'Subprocess' in project 'Subprocess'
Target 'Utilities' in project 'SwiftUtilities'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
➜ Explicit dependency on target 'Subprocess' in project 'Subprocess'
Target 'Subprocess' in project 'Subprocess'
➜ Explicit dependency on target 'Subprocess' in project 'Subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'Subprocess'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
Target 'Subprocess' in project 'Subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'Subprocess'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'CSystem' in project 'swift-system' (no dependencies)
Target '_SubprocessCShims' in project 'Subprocess' (no dependencies)
Target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
➜ Explicit dependency on target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim'
Target 'AutoreleasepoolShim' in project 'AutoreleasepoolShim' (no dependencies)
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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 -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/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 arm64_32 -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 armv7k -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: 5df3b338768bd7571a2922cfe1bcba13
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/5df3b338768bd7571a2922cfe1bcba13.xcbuilddata
error: The package product 'Subprocess' requires minimum platform version 26.4 for the watchOS platform, but this target supports 9.0 (in target 'Utilities' from project 'SwiftUtilities')
2026-04-30 07:22:23.731 xcodebuild[927:5556] [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 SwiftUtilities
(1 failure)
BUILD FAILURE 6.3 watchOS