Swift Package Index

Build Information

Failed to build Prelude, reference 0.1.2 (5f0b12), with Swift 6.2 for visionOS using Xcode 26.3 on 19 Jun 2025 04:20:51 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Prelude -destination generic/platform=xrOS

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pointfreeco/swift-prelude.git
Reference: 0.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pointfreeco/swift-prelude
 * tag               0.1.2      -> FETCH_HEAD
HEAD is now at 5f0b128 move add/mult precedence to 6 and 7 (#9)
Cloned https://github.com/pointfreeco/swift-prelude.git
Revision (git rev-parse @):
5f0b128bf620e162d574219d3d45b272f19c8423
SUCCESS checkout https://github.com/pointfreeco/swift-prelude.git at 0.1.2
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.2
Building package at path:  $PWD
https://github.com/pointfreeco/swift-prelude.git
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Prelude",
  "name" : "Prelude",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Prelude",
      "targets" : [
        "Prelude"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "PreludeTests",
      "module_type" : "SwiftTarget",
      "name" : "PreludeTests",
      "path" : "Tests/PreludeTests",
      "sources" : [
        "ArrayTests.swift",
        "ChoiceTests.swift",
        "EitherTests.swift",
        "FunctionTests.swift",
        "KeyPathTests.swift",
        "MonoidTests.swift",
        "OptionalTests.swift",
        "SemigroupTests.swift",
        "SequenceTests.swift",
        "StringTests.swift",
        "StrongTests.swift",
        "TupleTests.swift",
        "UnitTests.swift"
      ],
      "target_dependencies" : [
        "Prelude"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Prelude",
      "module_type" : "SwiftTarget",
      "name" : "Prelude",
      "path" : "Sources/Prelude",
      "product_memberships" : [
        "Prelude"
      ],
      "sources" : [
        "Array.swift",
        "Choice.swift",
        "Either.swift",
        "Function.swift",
        "KeyPath.swift",
        "Monoid.swift",
        "Operators.swift",
        "Optional.swift",
        "PrecedenceGroups.swift",
        "Semigroup.swift",
        "Sequence.swift",
        "String.swift",
        "Strong.swift",
        "Tuple.swift",
        "Unit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Prelude",
    "schemes" : [
      "Prelude-Package",
      "PreludePackageTests"
    ],
    "targets" : [
      "PreludeTests",
      "Prelude",
      "PreludePackageTests"
    ]
  }
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Prelude"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Prelude -destination generic/platform=xrOS
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.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 Prelude -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  Prelude: /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 'Prelude' in project 'Prelude'
        ➜ Explicit dependency on target 'Prelude' in project 'Prelude'
    Target 'Prelude' in project 'Prelude' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: c5b366d1b75f2d1a9b94a36f6601b998
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c5b366d1b75f2d1a9b94a36f6601b998.xcbuilddata
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
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
ClangStatCache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-xros
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-xros
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.modulemap (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.DependencyMetadataFileList (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.DependencyStaticMetadataFileList (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.SwiftFileList (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude_const_extract_protocols.json (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.SwiftConstValuesFileList (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-OutputFileMap.json (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.LinkFileList (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/Prelude.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.modulemap (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Prelude.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros
SwiftDriver Prelude normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name Prelude -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -target arm64-apple-xros1.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Sequence.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ String.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/String.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/String.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Array.swift,\ Choice.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Array.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Choice.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Array.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Choice.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Tuple.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Tuple.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Strong.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Strong.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Strong.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ KeyPath.swift,\ Monoid.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/KeyPath.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Monoid.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/KeyPath.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Monoid.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ Prelude (in target 'Prelude' from project 'Prelude')
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Array.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Choice.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Function.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/KeyPath.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Monoid.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Operators.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/PrecedenceGroups.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Semigroup.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/String.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Strong.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift -target arm64-apple-xros1.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 4 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Prelude -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name xros26.0 -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.abi.json
EmitSwiftModule normal arm64 (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:33:83: error: 'SubSequence' is not a member type of type 'S'
public func drop<S: Sequence>(while p: @escaping (S.Element) -> Bool) -> (S) -> S.SubSequence {
                                                                                ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:39:50: error: 'SubSequence' is not a member type of type 'S'
public func dropFirst<S: Sequence>(_ xs: S) -> S.SubSequence {
                                               ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:43:58: error: 'SubSequence' is not a member type of type 'S'
public func dropFirst<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                       ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:49:49: error: 'SubSequence' is not a member type of type 'S'
public func dropLast<S: Sequence>(_ xs: S) -> S.SubSequence {
                                              ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:53:57: error: 'SubSequence' is not a member type of type 'S'
public func dropLast<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                      ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:83:55: error: 'SubSequence' is not a member type of type 'S'
public func prefix<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                    ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:89:85: error: 'SubSequence' is not a member type of type 'S'
public func prefix<S: Sequence>(while p: @escaping (S.Element) -> Bool) -> (S) -> S.SubSequence {
                                                                                  ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:103:55: error: 'SubSequence' is not a member type of type 'S'
public func suffix<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                    ~ ^
SwiftCompile normal arm64 Compiling\ Unit.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Either.swift,\ Function.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Function.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Either.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Function.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Operators.swift,\ Optional.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Operators.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Operators.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ PrecedenceGroups.swift,\ Semigroup.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/PrecedenceGroups.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Semigroup.swift (in target 'Prelude' from project 'Prelude')
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ Prelude (in target 'Prelude' from project 'Prelude')
	EmitSwiftModule normal arm64 (in target 'Prelude' from project 'Prelude')
	Building workspace spi-builder-workspace with scheme Prelude
(3 failures)
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  Prelude: /Users/admin/builder/spi-builder-workspace
resolved source packages: Prelude
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Prelude",
  "name" : "Prelude",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Prelude",
      "targets" : [
        "Prelude"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "PreludeTests",
      "module_type" : "SwiftTarget",
      "name" : "PreludeTests",
      "path" : "Tests/PreludeTests",
      "sources" : [
        "ArrayTests.swift",
        "ChoiceTests.swift",
        "EitherTests.swift",
        "FunctionTests.swift",
        "KeyPathTests.swift",
        "MonoidTests.swift",
        "OptionalTests.swift",
        "SemigroupTests.swift",
        "SequenceTests.swift",
        "StringTests.swift",
        "StrongTests.swift",
        "TupleTests.swift",
        "UnitTests.swift"
      ],
      "target_dependencies" : [
        "Prelude"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Prelude",
      "module_type" : "SwiftTarget",
      "name" : "Prelude",
      "path" : "Sources/Prelude",
      "product_memberships" : [
        "Prelude"
      ],
      "sources" : [
        "Array.swift",
        "Choice.swift",
        "Either.swift",
        "Function.swift",
        "KeyPath.swift",
        "Monoid.swift",
        "Operators.swift",
        "Optional.swift",
        "PrecedenceGroups.swift",
        "Semigroup.swift",
        "Sequence.swift",
        "String.swift",
        "Strong.swift",
        "Tuple.swift",
        "Unit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Prelude"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Prelude -destination generic/platform=xrOS
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.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 Prelude -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  Prelude: /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 'Prelude' in project 'Prelude'
        ➜ Explicit dependency on target 'Prelude' in project 'Prelude'
    Target 'Prelude' in project 'Prelude' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache
SwiftDriver Prelude normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name Prelude -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -target arm64-apple-xros1.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Array.swift,\ Choice.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Array.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Choice.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Array.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Choice.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ String.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/String.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/String.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Operators.swift,\ Optional.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Operators.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Operators.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Sequence.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ KeyPath.swift,\ Monoid.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/KeyPath.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Monoid.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/KeyPath.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Monoid.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Either.swift,\ Function.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Function.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Either.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Function.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ PrecedenceGroups.swift,\ Semigroup.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/PrecedenceGroups.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Semigroup.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/PrecedenceGroups.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Semigroup.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Unit.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Strong.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Strong.swift (in target 'Prelude' from project 'Prelude')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Strong.swift (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ Prelude (in target 'Prelude' from project 'Prelude')
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Array.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Choice.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Function.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/KeyPath.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Monoid.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Operators.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/PrecedenceGroups.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Semigroup.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/String.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Strong.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift -target arm64-apple-xros1.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.0.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 4 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.0-23M5263k-63777232b7fc5220f33897c1cc69dbf5.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Prelude -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name xros26.0 -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Prelude.build/Debug-xros/Prelude.build/Objects-normal/arm64/Prelude.abi.json
EmitSwiftModule normal arm64 (in target 'Prelude' from project 'Prelude')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:33:83: error: 'SubSequence' is not a member type of type 'S'
public func drop<S: Sequence>(while p: @escaping (S.Element) -> Bool) -> (S) -> S.SubSequence {
                                                                                ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:39:50: error: 'SubSequence' is not a member type of type 'S'
public func dropFirst<S: Sequence>(_ xs: S) -> S.SubSequence {
                                               ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:43:58: error: 'SubSequence' is not a member type of type 'S'
public func dropFirst<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                       ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:49:49: error: 'SubSequence' is not a member type of type 'S'
public func dropLast<S: Sequence>(_ xs: S) -> S.SubSequence {
                                              ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:53:57: error: 'SubSequence' is not a member type of type 'S'
public func dropLast<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                      ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:83:55: error: 'SubSequence' is not a member type of type 'S'
public func prefix<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                    ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:89:85: error: 'SubSequence' is not a member type of type 'S'
public func prefix<S: Sequence>(while p: @escaping (S.Element) -> Bool) -> (S) -> S.SubSequence {
                                                                                  ~ ^
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Sequence.swift:103:55: error: 'SubSequence' is not a member type of type 'S'
public func suffix<S: Sequence>(_ n: Int) -> (S) -> S.SubSequence {
                                                    ~ ^
SwiftCompile normal arm64 Compiling\ Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/Prelude/Tuple.swift (in target 'Prelude' from project 'Prelude')
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ Prelude (in target 'Prelude' from project 'Prelude')
	EmitSwiftModule normal arm64 (in target 'Prelude' from project 'Prelude')
	Building workspace spi-builder-workspace with scheme Prelude
(3 failures)
BUILD FAILURE 6.2 visionOS