Swift Package Index

Build Information

Failed to build SwiftSerial, reference 0.2.0 (c33b44), with Swift 6.3 for watchOS using Xcode 26.4 on 18 Apr 2026 12:48:10 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftSerial -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/sgade/SwiftSerial.git
Reference: 0.2.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sgade/SwiftSerial
 * tag               0.2.0      -> FETCH_HEAD
HEAD is now at c33b440 Migrate to Swift 6.2
Cloned https://github.com/sgade/SwiftSerial.git
Revision (git rev-parse @):
c33b4400f0cb301cf26ab98220100ed2011bdc38
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/sgade/SwiftSerial.git at 0.2.0
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/sgade/SwiftSerial.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  SwiftSerial: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftSerial
2026-04-18 08:47:38.575 xcodebuild[529:3062] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:47:38.673 xcodebuild[529:3062] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:47:39.161 xcodebuild[529:3062] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftSerial",
  "name" : "SwiftSerial",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSerial",
      "targets" : [
        "SwiftSerial"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSerial",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSerial",
      "path" : "Sources/SwiftSerial",
      "product_memberships" : [
        "SwiftSerial"
      ],
      "sources" : [
        "BaudRate.swift",
        "DataBitsSize.swift",
        "ParityType.swift",
        "PortError.swift",
        "PortMode.swift",
        "SerialPort.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialTerminal",
      "SwiftSerial"
    ]
  }
}
2026-04-18 08:47:57.542 xcodebuild[631:3813] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:47:57.643 xcodebuild[631:3813] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialTerminal",
      "SwiftSerial"
    ]
  }
}
2026-04-18 08:47:59.188 xcodebuild[639:3879] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:47:59.318 xcodebuild[639:3879] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftSerial -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme SwiftSerial -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  SwiftSerial: /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 'SwiftSerial' in project 'SwiftSerial'
        ➜ Explicit dependency on target 'SwiftSerial' in project 'SwiftSerial'
    Target 'SwiftSerial' in project 'SwiftSerial' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: aa6487b0b24994b6d325f2b01b4e978b
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/aa6487b0b24994b6d325f2b01b4e978b.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-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos
    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-watchos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.DependencyStaticMetadataFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.DependencyMetadataFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.modulemap (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.LinkFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.SwiftConstValuesFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.SwiftFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-OutputFileMap.json (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial_const_extract_protocols.json (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial_const_extract_protocols.json (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.SwiftFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.SwiftConstValuesFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.LinkFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial-OutputFileMap.json (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftConstValuesFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.LinkFileList (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-OutputFileMap.json (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-OutputFileMap.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-watchos/SwiftSerial.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.modulemap (in target 'SwiftSerial' from project 'SwiftSerial')
    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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/SwiftSerial.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-watchos
SwiftDriver SwiftSerial normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSerial -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target arm64-apple-watchos5.0 -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 -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver SwiftSerial normal armv7k com.apple.xcode.tools.swift.compiler (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSerial -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target armv7k-apple-watchos5.0 -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 -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver SwiftSerial normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSerial -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target arm64_32-apple-watchos5.0 -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 -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-23GVZO3J60TK1907VB9EHEBV9.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-1SCPK6D91G9GTJ123R4QFENF6.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-3F71YKAFPIL4I12A9PF0U6XHE.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-D9WKCDD8BROY62AW3B8MFPIXL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-4ZAELXTE2GG4SZFDXPWPT7O9.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-9C1VDMTMAA0JCC5F9EDHMU7LC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-VGXHWQD1X9HM4Q2T00E645TO.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-8NZTOI4T0VWLZ8LCHBTWOV0U.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-EZGCYJSMQH3DYOXQY29AVGE07.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-2ZR2MNDQXQDAOMRAQZ45CE81G.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-EDJTPVI58WEN65KIWCAS19P47.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-A6301BTRI5ZX5EDBTBW37E6IM.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-CS7PFDO9VO42X1AIZ6EWBVDQ2.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-266NT1P7D1LMWVI1EJLP0L9GE.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-86SG3KWN2416SP1TV07QXWLZJ.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-8XLZ2TS80YAL53Q0Q3A6ZS6ZT.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-AI92T2A5LSX8RA8IKBL1CXDZL.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-32VS6E3RJ2GW9HCKVH7N8W3I1.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-1DTQYY9UU66023I0ATSGWG7ZE.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-QJ78F7IJG568G1O466A8X3NB.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-856YA4XCT9VDWQMTOUI1NVU2.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-9MVLLGAH7IBICW3NYCD73F8QA.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-9QJQ6YF71IBBNARH6DJ15ECUA.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-32WBVDB5Y1RJ3SQX5PTMTSJGL.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-DEOEBV79WBI36EAEV0AOG0GKL.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-5FZDPVDXD2HPLM78ZOM9N03SU.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-3FGS91GJTSCVBQWF0AZ8RDWIB.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-CS37TA6S5T8WO941F1Y6KPTPB.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-7JDHPVGJXIV0F0QT0TMFHPDJ1.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-EL9Q6E0RP2I23KV7GOAH9UASG.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-9HF0QGHXY3KFYNL697MDX2JFV.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-6O6RHGGQ8I02TIQLYBL6S0W5Y.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-CL2MZM3NQ4A4YTBAJBGDKOLWP.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-BEX4R8967RNOTRUYZ7EFL984V.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-BWJ8WVXJZ6T37PQKKMKQAIQ22.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-EU5DPB0SJLR7RBL14Y02NSQS1.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-5N90L5D6IYIYT6DRYMU0H0V03.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-7P8EAMJHII1Y13KPDIO6OPE85.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-74HTET9XAL0O1QM2B6UDOBYSG.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-BZOSF4DTRUSRKFFX4T0BLR890.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-2GWRARA6K993RJ88V1Y96KEJJ.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-D49PZOP3LYQFTFQ3ZWU4CUWLY.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-ANMRWEGXQF51I6TK574L4FTFE.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-3B8XHA0UANDWBT6BMXZAS4JL5.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-BKK5BSQWGF92KVELOAWQ749XO.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-9IKAGRULHBU3C82MV2Y7ETRR9.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-4Y8S3D2NV6ZO6MOFCA1EFD9PM.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-D1BA92JP0VXKAOKXR6B6MZJZO.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-8SQHK6BHD7C805PBQL0T3FF2V.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-1H8PZKOXK69WCY0KBMB7R7BOJ.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-EXSLV4FZ23ACOHESV6HN242JF.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-E9GNV3GPGTFX3JG66LQF1QW75.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-1TC7M1HBWDPP5XW1MSG61DOCN.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-ABHR2RPZAPKKRPEZKN1VS3U62.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-7UUR49QAGO7D92C84DCGJCQ92.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-6EYEGDCTXJQGYDTB9IGBGDHR7.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-57SK7T5TWBSHOGKKP26ZBGOZ9.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-7E7HKSKAV5AQ47IQSCMCCSI5V.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-325O7SVUGRSTNN7338Z6L40LL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-B36SMAPOXYMQNNNBLHT80G2FZ.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-4432WEOWGS1BJEUBC5UJRUFI3.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-6164Z87B6NSJD9LEHMISCPJJB.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-84YPE2UAZHTV4F627ZS1DADPK.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-Y7I7SAWGZK3XSFY29XNYOFQY.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-4G9M6BOQAKJFT396RD8IL8IUF.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-QNSWNE0992RTVJN316A9C3HN.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-5YU3N6OE9QRR2JL2WJTZKKGPG.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-BJL619DGQVH96DCT9RMEYS271.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-EF0P0CB81D8MM9HSY5UO4BF4M.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-8P4ROWVRZKZVZOL4S233P5SIA.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-E43LMQGE2B01RGJOII4K5CTAX.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-71DXGL209Y0POA2RI0VLBU7FT.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-7BDO0EMJRHS1THDHPCHC04IUO.pcm
SwiftExplicitDependencyGeneratePcm armv7k /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-63TQ62HBDYSK5FU3X07B5IB91.pcm
SwiftExplicitDependencyGeneratePcm arm64_32 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-31UN2CX7CUTVJGRDSF1GJVT2O.pcm
SwiftCompile normal arm64 Compiling\ SerialPort.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
Failed frontend command:
/Applications/Xcode-26.4.0.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/SwiftSerial/BaudRate.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/ParityType.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortError.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortMode.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift -target arm64-apple-watchos5.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-dependencies-2.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.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/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -swift-version 6 -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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -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 -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftSerial -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -clang-target arm64-apple-watchos26.4 -target-sdk-version 26.4 -target-sdk-name watchos26.4 -in-process-plugin-server-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.abi.json
EmitSwiftModule normal arm64 (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:14:30: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readDataStream: AsyncStream<Data>?
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:15:31: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readBytesStream: AsyncStream<UInt8>?
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:16:31: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readLinesStream: AsyncStream<String>?
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:244:47: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncData() throws(PortError) -> AsyncStream<Data> {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:244:14: note: add '@available' attribute to enclosing instance method
        public func asyncData() throws(PortError) -> AsyncStream<Data> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:256:37: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncBytes() throws -> AsyncStream<UInt8> {
                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:256:14: note: add '@available' attribute to enclosing instance method
        public func asyncBytes() throws -> AsyncStream<UInt8> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:283:37: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncLines() throws -> AsyncStream<String> {
                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:283:14: note: add '@available' attribute to enclosing instance method
        public func asyncLines() throws -> AsyncStream<String> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:215:3: error: cannot find 'specialCharacters' in scope
                specialCharacters.VMIN = cc_t(minimumBytesToRead)
                ^~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:216:3: error: cannot find 'specialCharacters' in scope
                specialCharacters.VTIME = cc_t(timeout)
                ^~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:217:19: error: cannot find 'specialCharacters' in scope
                settings.c_cc = specialCharacters
                                ^~~~~~~~~~~~~~~~~
SwiftCompile normal arm64 Compiling\ PortError.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortError.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortError.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

SwiftEmitModule normal armv7k Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
EmitSwiftModule normal armv7k (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal armv7k Compiling\ ParityType.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/ParityType.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal armv7k /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/ParityType.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal armv7k Compiling\ BaudRate.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/BaudRate.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal armv7k /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/BaudRate.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64_32 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
2026-04-18 08:48:00.043 xcodebuild[642:3911] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:00.143 xcodebuild[642:3911] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:00.911 xcodebuild[642:3911] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
	EmitSwiftModule normal arm64 (in target 'SwiftSerial' from project 'SwiftSerial')
	Building workspace spi-builder-workspace with scheme SwiftSerial
(3 failures)
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  SwiftSerial: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftSerial
2026-04-18 08:48:06.547 xcodebuild[744:4326] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:06.643 xcodebuild[744:4326] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftSerial",
  "name" : "SwiftSerial",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSerial",
      "targets" : [
        "SwiftSerial"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSerial",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSerial",
      "path" : "Sources/SwiftSerial",
      "product_memberships" : [
        "SwiftSerial"
      ],
      "sources" : [
        "BaudRate.swift",
        "DataBitsSize.swift",
        "ParityType.swift",
        "PortError.swift",
        "PortMode.swift",
        "SerialPort.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialTerminal",
      "SwiftSerial"
    ]
  }
}
2026-04-18 08:48:07.884 xcodebuild[754:4406] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:07.984 xcodebuild[754:4406] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialTerminal",
      "SwiftSerial"
    ]
  }
}
2026-04-18 08:48:08.841 xcodebuild[758:4445] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:08.941 xcodebuild[758:4445] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftSerial -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme SwiftSerial -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  SwiftSerial: /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 'SwiftSerial' in project 'SwiftSerial'
        ➜ Explicit dependency on target 'SwiftSerial' in project 'SwiftSerial'
    Target 'SwiftSerial' in project 'SwiftSerial' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
SwiftDriver SwiftSerial normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSerial -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target arm64-apple-watchos5.0 -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 -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver SwiftSerial normal armv7k com.apple.xcode.tools.swift.compiler (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSerial -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target armv7k-apple-watchos5.0 -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 -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver SwiftSerial normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSerial -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target arm64_32-apple-watchos5.0 -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 -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64_32/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ DataBitsSize.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

SwiftEmitModule normal arm64 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
Failed frontend command:
/Applications/Xcode-26.4.0.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/SwiftSerial/BaudRate.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/ParityType.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortError.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortMode.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift -target arm64-apple-watchos5.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-dependencies-2.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.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/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -swift-version 6 -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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -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 -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftSerial -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -clang-target arm64-apple-watchos26.4 -target-sdk-version 26.4 -target-sdk-name watchos26.4 -in-process-plugin-server-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.abi.json
EmitSwiftModule normal arm64 (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:14:30: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readDataStream: AsyncStream<Data>?
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:15:31: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readBytesStream: AsyncStream<UInt8>?
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:16:31: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readLinesStream: AsyncStream<String>?
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:244:47: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncData() throws(PortError) -> AsyncStream<Data> {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:244:14: note: add '@available' attribute to enclosing instance method
        public func asyncData() throws(PortError) -> AsyncStream<Data> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:256:37: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncBytes() throws -> AsyncStream<UInt8> {
                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:256:14: note: add '@available' attribute to enclosing instance method
        public func asyncBytes() throws -> AsyncStream<UInt8> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:283:37: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncLines() throws -> AsyncStream<String> {
                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:283:14: note: add '@available' attribute to enclosing instance method
        public func asyncLines() throws -> AsyncStream<String> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:215:3: error: cannot find 'specialCharacters' in scope
                specialCharacters.VMIN = cc_t(minimumBytesToRead)
                ^~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:216:3: error: cannot find 'specialCharacters' in scope
                specialCharacters.VTIME = cc_t(timeout)
                ^~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:217:19: error: cannot find 'specialCharacters' in scope
                settings.c_cc = specialCharacters
                                ^~~~~~~~~~~~~~~~~
SwiftCompile normal arm64 Compiling\ SerialPort.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

SwiftEmitModule normal arm64_32 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
EmitSwiftModule normal arm64_32 (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal armv7k Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
Failed frontend command:
/Applications/Xcode-26.4.0.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/SwiftSerial/BaudRate.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/ParityType.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortError.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/PortMode.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift -target armv7k-apple-watchos5.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-dependencies-3.json -enable-objc-interop -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.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/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -swift-version 6 -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/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -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 -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources-normal/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftSerial -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -clang-target armv7k-apple-watchos26.4 -target-sdk-version 26.4 -target-sdk-name watchos26.4 -in-process-plugin-server-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-watchos/SwiftSerial.build/Objects-normal/armv7k/SwiftSerial.abi.json
EmitSwiftModule normal armv7k (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:14:30: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readDataStream: AsyncStream<Data>?
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:15:31: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readBytesStream: AsyncStream<UInt8>?
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:16:31: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        private var readLinesStream: AsyncStream<String>?
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:4:14: note: add '@available' attribute to enclosing class
public class SerialPort {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:244:47: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncData() throws(PortError) -> AsyncStream<Data> {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:244:14: note: add '@available' attribute to enclosing instance method
        public func asyncData() throws(PortError) -> AsyncStream<Data> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:256:37: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncBytes() throws -> AsyncStream<UInt8> {
                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:256:14: note: add '@available' attribute to enclosing instance method
        public func asyncBytes() throws -> AsyncStream<UInt8> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:283:37: error: 'AsyncStream' is only available in watchOS 6.0 or newer
        public func asyncLines() throws -> AsyncStream<String> {
                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:283:14: note: add '@available' attribute to enclosing instance method
        public func asyncLines() throws -> AsyncStream<String> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:242:1: note: add '@available' attribute to enclosing extension
extension SerialPort {
^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:215:3: error: cannot find 'specialCharacters' in scope
                specialCharacters.VMIN = cc_t(minimumBytesToRead)
                ^~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:216:3: error: cannot find 'specialCharacters' in scope
                specialCharacters.VTIME = cc_t(timeout)
                ^~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/SerialPort.swift:217:19: error: cannot find 'specialCharacters' in scope
                settings.c_cc = specialCharacters
                                ^~~~~~~~~~~~~~~~~
SwiftCompile normal armv7k Compiling\ DataBitsSize.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift (in target 'SwiftSerial' from project 'SwiftSerial')
SwiftCompile normal armv7k /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/DataBitsSize.swift (in target 'SwiftSerial' from project 'SwiftSerial')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64_32 Compiling\ BaudRate.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftSerial/BaudRate.swift (in target 'SwiftSerial' from project 'SwiftSerial')
2026-04-18 08:48:09.739 xcodebuild[761:4478] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:09.841 xcodebuild[761:4478] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:09.981 xcodebuild[761:4478] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
	EmitSwiftModule normal arm64 (in target 'SwiftSerial' from project 'SwiftSerial')
	SwiftEmitModule normal armv7k Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
	EmitSwiftModule normal armv7k (in target 'SwiftSerial' from project 'SwiftSerial')
	Building workspace spi-builder-workspace with scheme SwiftSerial
(5 failures)
BUILD FAILURE 6.3 watchOS