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Build Information

Failed to build CLI, reference 2.3.1 (30b84c), with Swift 6.2 (beta) for macOS (Xcode) using Xcode 26.0 on 18 Jun 2025 14:45:28 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 CLI -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Ponyboy47/CLI.git
Reference: 2.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Ponyboy47/CLI
 * tag               2.3.1      -> FETCH_HEAD
HEAD is now at 30b84cd Updated README for MultiOption
Cloned https://github.com/Ponyboy47/CLI.git
Revision (git rev-parse @):
30b84cd3b751789e8a53f1ca428731ae6ec4e011
SUCCESS checkout https://github.com/Ponyboy47/CLI.git at 2.3.1
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.2
Building package at path:  $PWD
https://github.com/Ponyboy47/CLI.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
Resolve Package Graph
Fetching from https://github.com/Ponyboy47/Strings.git
Creating working copy of package ‘Strings’
Checking out 2.2.1 of package ‘Strings’
Resolve Package Graph
Resolved source packages:
  CLI: /Users/admin/builder/spi-builder-workspace
  Strings: https://github.com/Ponyboy47/Strings.git @ 2.2.1
resolved source packages: CLI, Strings
{
  "dependencies" : [
    {
      "identity" : "strings",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.2.1",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Ponyboy47/Strings.git"
    }
  ],
  "manifest_display_name" : "CLI",
  "name" : "CLI",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CLI",
      "targets" : [
        "CLI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CLI",
      "module_type" : "SwiftTarget",
      "name" : "CLI",
      "path" : "Sources/CLI",
      "product_dependencies" : [
        "Strings"
      ],
      "product_memberships" : [
        "CLI"
      ],
      "sources" : [
        "ArgumentErrors.swift",
        "ArgumentParser.swift",
        "ArgumentProtocols.swift",
        "ArgumentTypes.swift",
        "MultiOption.swift",
        "Option+Flag.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "CLI"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CLI -destination platform=macOS,arch=arm64
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 CLI -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Strings: https://github.com/Ponyboy47/Strings.git @ 2.2.1
  CLI: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'CLI' in project 'CLI'
        ➜ Explicit dependency on target 'CLI' in project 'CLI'
        ➜ Explicit dependency on target 'Strings' in project 'Strings'
    Target 'CLI' in project 'CLI'
        ➜ Explicit dependency on target 'Strings' in project 'Strings'
    Target 'Strings' in project 'Strings'
        ➜ Explicit dependency on target 'Strings' in project 'Strings'
    Target 'Strings' in project 'Strings' (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/MacOSX.platform/Developer/SDKs/MacOSX26.0.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: 09bd2e16d17ed7fa1f0f5aafcac07d03
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/09bd2e16d17ed7fa1f0f5aafcac07d03.xcbuilddata
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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache
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
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
    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
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.DependencyMetadataFileList (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.modulemap (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.DependencyStaticMetadataFileList (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.SwiftFileList (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-OutputFileMap.json (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.LinkFileList (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings_const_extract_protocols.json (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.SwiftConstValuesFileList (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_const_extract_protocols.json (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.SwiftFileList (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.SwiftConstValuesFileList (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.LinkFileList (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-OutputFileMap.json (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-OutputFileMap.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Strings.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Strings.modulemap (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    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/Strings.build/Debug/Strings.build/Strings.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.modulemap (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.DependencyStaticMetadataFileList (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.DependencyMetadataFileList (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.DependencyMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/CLI.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/CLI.modulemap (in target 'CLI' from project 'CLI')
    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/CLI.build/Debug/CLI.build/CLI.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver Strings normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Strings' from project 'Strings')
    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 Strings -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -suppress-warnings -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-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/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.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/Strings.build/Debug/Strings.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.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/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Strings.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings.swift (in target 'Strings' from project 'Strings')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings.swift (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ Strings (in target 'Strings' from project 'Strings')
EmitSwiftModule normal arm64 (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Strings+Validation.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Validation.swift (in target 'Strings' from project 'Strings')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Validation.swift (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

SwiftCompile normal arm64 Compiling\ Strings+Subscript.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Subscript.swift (in target 'Strings' from project 'Strings')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Subscript.swift (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftDriverJobDiscovery normal arm64 Emitting module for Strings (in target 'Strings' from project 'Strings')
SwiftDriver\ Compilation\ Requirements Strings normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name Strings -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -suppress-warnings -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-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/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.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/Strings.build/Debug/Strings.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.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/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftMergeGeneratedHeaders /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Strings-Swift.h /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-Swift.h (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    builtin-swiftHeaderTool -arch arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-Swift.h -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Strings-Swift.h
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/arm64-apple-macos.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.swiftdoc (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/arm64-apple-macos.swiftdoc
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/arm64-apple-macos.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.swiftmodule (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/arm64-apple-macos.swiftmodule
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/arm64-apple-macos.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.abi.json (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/arm64-apple-macos.abi.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/Project/arm64-apple-macos.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.swiftsourceinfo (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/Strings.swiftmodule/Project/arm64-apple-macos.swiftsourceinfo
SwiftDriver CLI normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CLI' from project 'CLI')
    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 CLI -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/CLI.build/Debug/CLI.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ ArgumentParser.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentParser.swift (in target 'CLI' from project 'CLI')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentParser.swift (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ CLI (in target 'CLI' from project 'CLI')
EmitSwiftModule normal arm64 (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift:73:5: warning: 'public' modifier is redundant for instance method declared in a public extension
    public func index(of element: A) -> Int? {
    ^~~~~~~

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

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

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

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

SwiftCompile normal arm64 Compiling\ MultiOption.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentErrors.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentParser.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentProtocols.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentTypes.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/Option+Flag.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.dia -target arm64-apple-macos10.13 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/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 -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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_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/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CLI -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name macosx26.0 -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.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 -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.o -index-unit-output-path /CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift:73:5: warning: 'public' modifier is redundant for instance method declared in a public extension
    public func index(of element: A) -> Int? {
    ^~~~~~~

/Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift:52:16: error: 'subscript(_:)' is unavailable
        return values[bounds]
               ^~~~~~~~~~~~~~
Swift.MutableCollection.subscript:3:21: note: 'subscript(_:)' has been explicitly marked unavailable here
  @inlinable public subscript(bounds: Range<Self.Index>) -> Slice<Self> { get set }}
                    ^
SwiftDriverJobDiscovery normal arm64 Emitting module for CLI (in target 'CLI' from project 'CLI')
SwiftDriver\ Compilation\ Requirements CLI normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name CLI -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/CLI.build/Debug/CLI.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ MultiOption.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
	Building workspace spi-builder-workspace with scheme CLI
(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:
  CLI: /Users/admin/builder/spi-builder-workspace
  Strings: https://github.com/Ponyboy47/Strings.git @ 2.2.1
resolved source packages: CLI, Strings
{
  "dependencies" : [
    {
      "identity" : "strings",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.2.1",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Ponyboy47/Strings.git"
    }
  ],
  "manifest_display_name" : "CLI",
  "name" : "CLI",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CLI",
      "targets" : [
        "CLI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CLI",
      "module_type" : "SwiftTarget",
      "name" : "CLI",
      "path" : "Sources/CLI",
      "product_dependencies" : [
        "Strings"
      ],
      "product_memberships" : [
        "CLI"
      ],
      "sources" : [
        "ArgumentErrors.swift",
        "ArgumentParser.swift",
        "ArgumentProtocols.swift",
        "ArgumentTypes.swift",
        "MultiOption.swift",
        "Option+Flag.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "CLI"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CLI -destination platform=macOS,arch=arm64
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 CLI -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  CLI: /Users/admin/builder/spi-builder-workspace
  Strings: https://github.com/Ponyboy47/Strings.git @ 2.2.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'CLI' in project 'CLI'
        ➜ Explicit dependency on target 'CLI' in project 'CLI'
        ➜ Explicit dependency on target 'Strings' in project 'Strings'
    Target 'CLI' in project 'CLI'
        ➜ Explicit dependency on target 'Strings' in project 'Strings'
    Target 'Strings' in project 'Strings'
        ➜ Explicit dependency on target 'Strings' in project 'Strings'
    Target 'Strings' in project 'Strings' (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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache
SwiftDriver Strings normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Strings' from project 'Strings')
    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 Strings -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -suppress-warnings -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-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/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings.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/Strings.build/Debug/Strings.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Strings.build/Debug/Strings.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/Strings.build/Debug/Strings.build/Objects-normal/arm64/Strings-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver CLI normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CLI' from project 'CLI')
    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 CLI -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/CLI.build/Debug/CLI.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Strings+Subscript.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Subscript.swift (in target 'Strings' from project 'Strings')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Subscript.swift (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ Strings (in target 'Strings' from project 'Strings')
EmitSwiftModule normal arm64 (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Strings+Validation.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Validation.swift (in target 'Strings' from project 'Strings')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Strings/Sources/Strings/Strings+Validation.swift (in target 'Strings' from project 'Strings')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

SwiftEmitModule normal arm64 Emitting\ module\ for\ CLI (in target 'CLI' from project 'CLI')
EmitSwiftModule normal arm64 (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift:73:5: warning: 'public' modifier is redundant for instance method declared in a public extension
    public func index(of element: A) -> Int? {
    ^~~~~~~

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

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

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

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

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

SwiftCompile normal arm64 Compiling\ MultiOption.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentErrors.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentParser.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentProtocols.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/ArgumentTypes.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/Option+Flag.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.dia -target arm64-apple-macos10.13 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/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 -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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_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/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CLI -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name macosx26.0 -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.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 -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.o -index-unit-output-path /CLI.build/Debug/CLI.build/Objects-normal/arm64/MultiOption.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift:73:5: warning: 'public' modifier is redundant for instance method declared in a public extension
    public func index(of element: A) -> Int? {
    ^~~~~~~

/Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift:52:16: error: 'subscript(_:)' is unavailable
        return values[bounds]
               ^~~~~~~~~~~~~~
Swift.MutableCollection.subscript:3:21: note: 'subscript(_:)' has been explicitly marked unavailable here
  @inlinable public subscript(bounds: Range<Self.Index>) -> Slice<Self> { get set }}
                    ^
SwiftDriverJobDiscovery normal arm64 Compiling Substring.swift (in target 'Strings' from project 'Strings')
SwiftDriverJobDiscovery normal arm64 Compiling ArgumentTypes.swift (in target 'CLI' from project 'CLI')
SwiftDriverJobDiscovery normal arm64 Emitting module for CLI (in target 'CLI' from project 'CLI')
SwiftDriver\ Compilation\ Requirements CLI normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name CLI -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -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 -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.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/CLI.build/Debug/CLI.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.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/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftMergeGeneratedHeaders /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/CLI-Swift.h /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-Swift.h (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-swiftHeaderTool -arch arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI-Swift.h -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/CLI-Swift.h
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/arm64-apple-macos.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.swiftmodule (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/arm64-apple-macos.swiftmodule
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/arm64-apple-macos.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.swiftdoc (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/arm64-apple-macos.swiftdoc
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/arm64-apple-macos.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.abi.json (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/arm64-apple-macos.abi.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/Project/arm64-apple-macos.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.swiftsourceinfo (in target 'CLI' from project 'CLI')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CLI.build/Debug/CLI.build/Objects-normal/arm64/CLI.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/CLI.swiftmodule/Project/arm64-apple-macos.swiftsourceinfo
SwiftDriverJobDiscovery normal arm64 Compiling ArgumentErrors.swift (in target 'CLI' from project 'CLI')
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:cf7d1344669526068cb009978342f3ee7478402f, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ MultiOption.swift /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CLI/MultiOption.swift (in target 'CLI' from project 'CLI')
	Building workspace spi-builder-workspace with scheme CLI
(3 failures)
BUILD FAILURE 6.2 macosXcodebuild