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Build Information

Failed to build SwiftyGPIO, reference 2.0.0-beta10 (d9b049), with Swift 6.3 for visionOS using Xcode 26.4 on 14 Apr 2026 01:36:08 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/uraimo/SwiftyGPIO.git
Reference: 2.0.0-beta10
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/uraimo/SwiftyGPIO
 * tag               2.0.0-beta10 -> FETCH_HEAD
HEAD is now at d9b0494 Workaround for #96, Issue with poll on boot
Cloned https://github.com/uraimo/SwiftyGPIO.git
Revision (git rev-parse @):
d9b04944a4c0639d606e9a0fcfef41c8ebcf6d2c
SUCCESS checkout https://github.com/uraimo/SwiftyGPIO.git at 2.0.0-beta10
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/uraimo/SwiftyGPIO.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:
  SwiftyGPIO: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftyGPIO
2026-04-13 21:35:48.492 xcodebuild[529:3099] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftyGPIO",
  "name" : "SwiftyGPIO",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftyGPIO",
      "targets" : [
        "SwiftyGPIO"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftyGPIOTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyGPIOTests",
      "path" : "Tests/SwiftyGPIOTests",
      "sources" : [
        "SwiftyGPIOTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SwiftyGPIO"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftyGPIO",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyGPIO",
      "path" : "Sources/SwiftyGPIO",
      "product_memberships" : [
        "SwiftyGPIO"
      ],
      "sources" : [
        "Generic/1Wire.swift",
        "Generic/ADC.swift",
        "Generic/GPIO.swift",
        "Generic/I2C.swift",
        "Generic/SPI.swift",
        "Generic/UART.swift",
        "Presets.swift",
        "SunXi.swift",
        "SwiftyGPIO.swift",
        "Vendor/Mailbox.swift",
        "Vendor/RaspberryGPIO.swift",
        "Vendor/RaspberryPWM.swift",
        "Vendor/RaspberrySPI.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SwiftyGPIO"
    ]
  }
}
2026-04-13 21:35:56.495 xcodebuild[631:3869] [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 SwiftyGPIO -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 SwiftyGPIO -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  SwiftyGPIO: /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 'SwiftyGPIO' in project 'SwiftyGPIO'
        ➜ Explicit dependency on target 'SwiftyGPIO' in project 'SwiftyGPIO'
    Target 'SwiftyGPIO' in project 'SwiftyGPIO' (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: 84696f98449a46b4ed082c5673756c52
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/84696f98449a46b4ed082c5673756c52.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/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-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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.DependencyMetadataFileList (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.DependencyStaticMetadataFileList (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.modulemap (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_const_extract_protocols.json (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.LinkFileList (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-OutputFileMap.json (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.SwiftFileList (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.SwiftConstValuesFileList (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.SwiftConstValuesFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SwiftyGPIO.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.modulemap (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/SwiftyGPIO.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros
SwiftDriver SwiftyGPIO normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    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 SwiftyGPIO -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.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 -profile-coverage-mapping -profile-generate -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 4 -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ GPIO.swift,\ I2C.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/GPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/I2C.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/GPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/I2C.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/Mailbox.swift:91:23: warning: will never be executed
        if memRef < 0 {
                      ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/Mailbox.swift:91:19: note: condition always evaluates to false
        if memRef < 0 {
                  ^
SwiftCompile normal arm64 Compiling\ RaspberryGPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberryGPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberryGPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

SwiftCompile normal arm64 Compiling\ 1Wire.swift,\ ADC.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/ADC.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

SwiftCompile normal arm64 Compiling\ SPI.swift,\ UART.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
Failed frontend command:
/Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/ADC.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/GPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/I2C.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Presets.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/SunXi.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/SwiftyGPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/Mailbox.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberryGPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberryPWM.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberrySPI.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SPI.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SPI.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SPI.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SPI.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.dia -target arm64-apple-xros1.0 -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/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 4 -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftyGPIO -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.4 -target-sdk-name xros26.4 -external-plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SPI.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.o -index-unit-output-path /SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SPI.o -index-unit-output-path /SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift:94:46: warning: initialization of 'UnsafeMutablePointer<UInt8>' results in a dangling pointer
            tx_buf: UInt64( UInt(bitPattern: UnsafeMutablePointer(mutating: tx)) ),
                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift:94:77: note: implicit argument conversion from '[UInt8]' to 'UnsafePointer<UInt8>' produces a pointer valid only for the duration of the call to 'init(mutating:)'
            tx_buf: UInt64( UInt(bitPattern: UnsafeMutablePointer(mutating: tx)) ),
                                                                            ^~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift:94:77: note: use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope
            tx_buf: UInt64( UInt(bitPattern: UnsafeMutablePointer(mutating: tx)) ),
                                                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift:95:46: warning: initialization of 'UnsafeMutablePointer<UInt8>' results in a dangling pointer
            rx_buf: UInt64( UInt(bitPattern: UnsafeMutablePointer(mutating: rx)) ),
                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift:95:77: note: implicit argument conversion from '[UInt8]' to 'UnsafePointer<UInt8>' produces a pointer valid only for the duration of the call to 'init(mutating:)'
            rx_buf: UInt64( UInt(bitPattern: UnsafeMutablePointer(mutating: rx)) ),
                                                                            ^~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift:95:77: note: use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope
            rx_buf: UInt64( UInt(bitPattern: UnsafeMutablePointer(mutating: rx)) ),
                                                                            ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:68:24: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IGNBRK)      // disable break processing
                       ^
                       UInt(          )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:68:25: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IGNBRK)      // disable break processing
                        ^
                        UInt(         )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:75:25: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IXON | IXOFF | IXANY) // Every kind of software flow control off
                        ^
                        UInt(                       )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:75:24: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IXON | IXOFF | IXANY) // Every kind of software flow control off
                       ^
                       UInt(                        )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:76:24: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_cflag &= ~UInt32(CRTSCTS)  //No hw flow control
                       ^
                       UInt(           )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:76:25: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_cflag &= ~UInt32(CRTSCTS)  //No hw flow control
                        ^
                        UInt(          )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:77:24: error: cannot convert value of type 'UInt32' to expected argument type 'tcflag_t' (aka 'UInt')
        tty.c_cflag |= UInt32(CLOCAL | CREAD)        // Ignore modem controls, enable read
                       ^
                       tcflag_t(             )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:86:37: error: cannot find 'FIONREAD' in scope
        let result = ioctl(fd, UInt(FIONREAD), &bytesToRead)
                                    ^~~~~~~~
/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.sdk/usr/include/sys/filio.h:77:9: note: macro 'FIONREAD' unavailable: structure not supported
#define FIONREAD        _IOR('f', 127, int)     /* get # bytes to read */
        ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:94:19: warning: initialization of 'UnsafeMutablePointer<CChar>' (aka 'UnsafeMutablePointer<Int8>') results in a dangling pointer
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:94:47: note: implicit argument conversion from '[CChar]' (aka 'Array<Int8>') to 'UnsafeMutablePointer<CChar>' (aka 'UnsafeMutablePointer<Int8>') produces a pointer valid only for the duration of the call to 'init(_:)'
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                                              ^~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:94:47: note: use the 'withUnsafeMutableBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                                              ^
SwiftDriverJobDiscovery normal arm64 Compiling SunXi.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftDriverJobDiscovery normal arm64 Emitting module for SwiftyGPIO (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftDriver\ Compilation\ Requirements SwiftyGPIO normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftyGPIO -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.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 -profile-coverage-mapping -profile-generate -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 4 -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftMergeGeneratedHeaders /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SwiftyGPIO-Swift.h /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-Swift.h (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-swiftHeaderTool -arch arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-Swift.h -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SwiftyGPIO-Swift.h
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/arm64-apple-xros.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftmodule (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/arm64-apple-xros.swiftmodule
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/arm64-apple-xros.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftdoc (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/arm64-apple-xros.swiftdoc
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/arm64-apple-xros.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.abi.json (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/arm64-apple-xros.abi.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/Project/arm64-apple-xros.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftsourceinfo (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SwiftyGPIO.swiftmodule/Project/arm64-apple-xros.swiftsourceinfo
SwiftDriverJobDiscovery normal arm64 Compiling Presets.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftDriverJobDiscovery normal arm64 Compiling RaspberrySPI.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftDriverJobDiscovery normal arm64 Compiling Mailbox.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
2026-04-13 21:35:57.992 xcodebuild[638:3929] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ SPI.swift,\ UART.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
	Building workspace spi-builder-workspace with scheme SwiftyGPIO
(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:
  SwiftyGPIO: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftyGPIO
2026-04-13 21:36:05.108 xcodebuild[675:4158] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftyGPIO",
  "name" : "SwiftyGPIO",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftyGPIO",
      "targets" : [
        "SwiftyGPIO"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftyGPIOTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyGPIOTests",
      "path" : "Tests/SwiftyGPIOTests",
      "sources" : [
        "SwiftyGPIOTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SwiftyGPIO"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftyGPIO",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyGPIO",
      "path" : "Sources/SwiftyGPIO",
      "product_memberships" : [
        "SwiftyGPIO"
      ],
      "sources" : [
        "Generic/1Wire.swift",
        "Generic/ADC.swift",
        "Generic/GPIO.swift",
        "Generic/I2C.swift",
        "Generic/SPI.swift",
        "Generic/UART.swift",
        "Presets.swift",
        "SunXi.swift",
        "SwiftyGPIO.swift",
        "Vendor/Mailbox.swift",
        "Vendor/RaspberryGPIO.swift",
        "Vendor/RaspberryPWM.swift",
        "Vendor/RaspberrySPI.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SwiftyGPIO"
    ]
  }
}
2026-04-13 21:36:06.504 xcodebuild[685:4245] [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 SwiftyGPIO -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 SwiftyGPIO -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  SwiftyGPIO: /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 'SwiftyGPIO' in project 'SwiftyGPIO'
        ➜ Explicit dependency on target 'SwiftyGPIO' in project 'SwiftyGPIO'
    Target 'SwiftyGPIO' in project 'SwiftyGPIO' (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 SwiftyGPIO normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    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 SwiftyGPIO -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.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 -profile-coverage-mapping -profile-generate -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 4 -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ ADC.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/ADC.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/ADC.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ I2C.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/I2C.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/I2C.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ UART.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
Failed frontend command:
/Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/ADC.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/GPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/I2C.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/SPI.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Presets.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/SunXi.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/SwiftyGPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/Mailbox.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberryGPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberryPWM.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Vendor/RaspberrySPI.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.dia -target arm64-apple-xros1.0 -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/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 4 -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/SwiftyGPIO_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.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/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftyGPIO -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.4 -target-sdk-name xros26.4 -external-plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.o -index-unit-output-path /SwiftyGPIO.build/Debug-xros/SwiftyGPIO.build/Objects-normal/arm64/UART.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:68:25: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IGNBRK)      // disable break processing
                        ^
                        UInt(         )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:68:24: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IGNBRK)      // disable break processing
                       ^
                       UInt(          )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:75:25: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IXON | IXOFF | IXANY) // Every kind of software flow control off
                        ^
                        UInt(                       )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:75:24: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_iflag &= ~UInt32(IXON | IXOFF | IXANY) // Every kind of software flow control off
                       ^
                       UInt(                        )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:76:25: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_cflag &= ~UInt32(CRTSCTS)  //No hw flow control
                        ^
                        UInt(          )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:76:24: error: cannot convert value of type 'UInt32' to expected argument type 'UInt'
        tty.c_cflag &= ~UInt32(CRTSCTS)  //No hw flow control
                       ^
                       UInt(           )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:77:24: error: cannot convert value of type 'UInt32' to expected argument type 'tcflag_t' (aka 'UInt')
        tty.c_cflag |= UInt32(CLOCAL | CREAD)        // Ignore modem controls, enable read
                       ^
                       tcflag_t(             )
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:86:37: error: cannot find 'FIONREAD' in scope
        let result = ioctl(fd, UInt(FIONREAD), &bytesToRead)
                                    ^~~~~~~~
/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS26.4.sdk/usr/include/sys/filio.h:77:9: note: macro 'FIONREAD' unavailable: structure not supported
#define FIONREAD        _IOR('f', 127, int)     /* get # bytes to read */
        ^
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:94:19: warning: initialization of 'UnsafeMutablePointer<CChar>' (aka 'UnsafeMutablePointer<Int8>') results in a dangling pointer
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:94:47: note: implicit argument conversion from '[CChar]' (aka 'Array<Int8>') to 'UnsafeMutablePointer<CChar>' (aka 'UnsafeMutablePointer<Int8>') produces a pointer valid only for the duration of the call to 'init(_:)'
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                                              ^~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift:94:47: note: use the 'withUnsafeMutableBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                                              ^
SwiftCompile normal arm64 Compiling\ GPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/GPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/GPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

SwiftCompile normal arm64 Compiling\ 1Wire.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift:76:19: warning: initialization of 'UnsafeMutablePointer<CChar>' (aka 'UnsafeMutablePointer<Int8>') results in a dangling pointer
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift:76:47: note: implicit argument conversion from '[CChar]' (aka 'Array<Int8>') to 'UnsafeMutablePointer<CChar>' (aka 'UnsafeMutablePointer<Int8>') produces a pointer valid only for the duration of the call to 'init(_:)'
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                                              ^~~~
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/1Wire.swift:76:47: note: use the 'withUnsafeMutableBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope
        var ptr = UnsafeMutablePointer<CChar>(&buf)
                                              ^
SwiftCompile normal arm64 Compiling\ SwiftyGPIO.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/SwiftyGPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/SwiftyGPIO.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

SwiftDriverJobDiscovery normal arm64 Compiling 1Wire.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
2026-04-13 21:36:07.426 xcodebuild[688:4276] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ UART.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftyGPIO/Generic/UART.swift (in target 'SwiftyGPIO' from project 'SwiftyGPIO')
	Building workspace spi-builder-workspace with scheme SwiftyGPIO
(3 failures)
BUILD FAILURE 6.3 visionOS