Swift Package Index

Build Information

Failed to build SwiftSerial, reference 0.2.0 (c33b44), with Swift 6.3 for visionOS using Xcode 26.4 on 18 Apr 2026 12:48:26 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=xrOS

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:         visionOS
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 08:47:52.666 xcodebuild[528:3069] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:47:52.761 xcodebuild[528:3069] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:47:53.319 xcodebuild[528:3069] [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 08:48:12.167 xcodebuild[630:3836] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:12.269 xcodebuild[630:3836] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialTerminal",
      "SwiftSerial"
    ]
  }
}
2026-04-18 08:48:13.905 xcodebuild[638:3907] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:14.035 xcodebuild[638:3907] [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=xrOS
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=xrOS
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/XROS.platform/Developer/SDKs/XROS26.4.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: 9ca947f65b23135f59caaa5679bf8e94
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/9ca947f65b23135f59caaa5679bf8e94.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
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/XROS.platform/Developer/SDKs/XROS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.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/XROS.platform/Developer/SDKs/XROS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.sdkstatcache
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/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/EagerLinkingTBDs/Debug-xros
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-xros
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/SwiftSerial.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/SwiftSerial.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/SwiftSerial.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.SwiftConstValuesFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SwiftSerial.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/SwiftSerial.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros
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-xros/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/XROS.platform/Developer/SDKs/XROS26.4.sdk -target arm64-apple-xros1.0 -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-xros -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/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-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/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_stdbool-C41A3QGCM1YYJNI7YRH3ZKU8F.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-5FHCG9W8AOEJ547P8R0LSBI27.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-BWITQRLOAUXY4J5EOQVH70S40.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-CKA43H4J856XAK8467CMSTRYN.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-2Y1DNGB0APBU37UCM85USN5Y7.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-SEU7M0Z3UU3ECB3MXH41MTTB.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-1OT2ROK20XTH9ADDS9YILR71T.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-9C21NR73BQS9YG84UF3Z27MZO.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-7YY1YWNK5RJ1L5PT0R8GATWBI.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-AV4T6NB9MX6FXUSNVLM60WU35.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-6C7U720J1A7CX6SY1HA6Y4ABQ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-9F06RGJJQSDB3CAB2FUUZLYOT.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-1UZDUXFNH2LE5XBXBIMGCD3RJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-2VHBA2ITX47FXGDI0ECTM0J5J.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-1BK14W3VDJTL3BNFXE3OYQWPK.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-DOZ9OALAIXSON0S4A162ZO3RH.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-88QYID429OP0RJV4X7NPHPT2W.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-5MAD45BWGS8P30UMUJFGZ7LVH.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-BHB2AXKXK7HNT33V5WH5L4PHZ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-ES7TF84IHLHY68XC8B13D06G2.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-CH0YEHE89REKJW64S77ZBPVT6.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-2JEYRPXOLD9YNF4DBVAINHNJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-CB1E2Y5DHG10RUFYUNP5BII37.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-8OM0E0PQ5C6PZYQVGYD252RWL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CFNetwork-94IVTH1ZB7XMMQR8GFP7ZGDF6.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-67PR8RFP277YDC0MV0TJU5MVL.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ SwiftSerial (in target 'SwiftSerial' from project 'SwiftSerial')
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: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
                                ^~~~~~~~~~~~~~~~~
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-xros1.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.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-xros/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/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros26.4 -target-sdk-version 26.4 -target-sdk-name xros26.4 -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-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.abi.json
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\ 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\ 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\ 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\ 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

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

2026-04-18 08:48:14.765 xcodebuild[641:3940] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:14.864 xcodebuild[641:3940] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:15.625 xcodebuild[641:3940] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	EmitSwiftModule normal arm64 (in target 'SwiftSerial' from project 'SwiftSerial')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ SwiftSerial (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 08:48:22.210 xcodebuild[700:4216] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:22.338 xcodebuild[700:4216] [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 08:48:23.375 xcodebuild[710:4303] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:23.505 xcodebuild[710:4303] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialTerminal",
      "SwiftSerial"
    ]
  }
}
2026-04-18 08:48:24.252 xcodebuild[714:4342] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:24.383 xcodebuild[714:4342] [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=xrOS
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=xrOS
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/XROS.platform/Developer/SDKs/XROS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.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/XROS.platform/Developer/SDKs/XROS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.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-xros/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/XROS.platform/Developer/SDKs/XROS26.4.sdk -target arm64-apple-xros1.0 -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-xros -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/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-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
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

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-xros1.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.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-xros/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/xros26.4-23O238-688ef53f1462e2c8f657fdc38a81448fc42b1e75d12c8f651050d7e98f89897c.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros26.4 -target-sdk-version 26.4 -target-sdk-name xros26.4 -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-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/SwiftSerial.build/Objects-normal/arm64/SwiftSerial.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftSerial.build/Debug-xros/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: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\ 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\ 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

2026-04-18 08:48:25.097 xcodebuild[718:4389] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:25.216 xcodebuild[718:4389] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 08:48:25.419 xcodebuild[718:4389] [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)
BUILD FAILURE 6.3 visionOS