Lotsawa – Build Information – Swift Package Index

Build Information

Failed to build Lotsawa, reference v0.9.1 (019858), with Swift 6.3 for tvOS using Xcode 26.4 on 21 Apr 2026 11:42:51 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hylo-lang/Lotsawa.git
Reference: v0.9.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/hylo-lang/Lotsawa
 * tag               v0.9.1     -> FETCH_HEAD
HEAD is now at 0198583 License with Apache 2.0
Submodule path 'paper': checked out '73b347b7e6405323a086a17ad26f5d7b85bb43dc'
Submodule 'paper' (https://github.com/jeffreykegler/Marpa-arxiv-paper) registered for path 'paper'
Cloning into '/Users/admin/builder/spi-builder-workspace/paper'...
Cloned https://github.com/hylo-lang/Lotsawa.git
Revision (git rev-parse @):
0198583791366b2e8238438f0fc67aac7bf826bc
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/hylo-lang/Lotsawa.git at v0.9.1
========================================
Build
========================================
Selected platform:         tvOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/hylo-lang/Lotsawa.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
Fetching from https://github.com/dabrahams/citron.git
Fetching from https://github.com/SwiftPackageIndex/SPIManifest.git
Fetching from https://github.com/jpsim/Yams.git
Creating working copy of package ‘Yams’
Checking out 5.4.0 of package ‘Yams’
Creating working copy of package ‘SPIManifest’
Checking out 0.19.0 of package ‘SPIManifest’
Creating working copy of package ‘citron’
Checking out 2.1.7 of package ‘citron’
Resolve Package Graph
Resolved source packages:
  citron: https://github.com/dabrahams/citron.git @ 2.1.7
  Yams: https://github.com/jpsim/Yams.git @ 5.4.0
  SPIManifest: https://github.com/SwiftPackageIndex/SPIManifest.git @ 0.19.0
  Lotsawa: /Users/admin/builder/spi-builder-workspace
resolved source packages: citron, Yams, SPIManifest, Lotsawa
2026-04-21 07:42:29.200 xcodebuild[535:3053] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "citron",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.1.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/dabrahams/citron.git"
    },
    {
      "identity" : "spimanifest",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/SwiftPackageIndex/SPIManifest.git"
    }
  ],
  "manifest_display_name" : "Lotsawa",
  "name" : "Lotsawa",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "Lotsawa",
      "targets" : [
        "Lotsawa"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LotsawaTests",
      "module_type" : "SwiftTarget",
      "name" : "LotsawaTests",
      "path" : "Tests/LotsawaTests",
      "product_dependencies" : [
        "CitronParserModule",
        "CitronLexerModule",
        "CitronParserGenerator"
      ],
      "sources" : [
        "AdjacencyMatrixTests.swift",
        "BitSetTests.swift",
        "ChartInternalTests.swift",
        "DiscreteMapTests.swift",
        "ForestTests.swift",
        "GrammarInternalTests.swift",
        "GrammarPreprocessing.swift",
        "GrammarPreprocessingTests.swift",
        "GrammarTests.swift",
        "RecognizerTests.swift",
        "Utils/DebugChart.swift",
        "Utils/DebugForest.swift",
        "Utils/DebugGrammar.swift",
        "Utils/DebugGrammarScanner.swift",
        "Utils/DebugRecognizer.swift",
        "Utils/Incidental.swift",
        "Utils/Lotsawa+Extensions.swift",
        "Utils/ParseGeneration.swift",
        "Utils/Swift+Extensions.swift"
      ],
      "target_dependencies" : [
        "Lotsawa"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Lotsawa",
      "module_type" : "SwiftTarget",
      "name" : "Lotsawa",
      "path" : "Sources/Lotsawa",
      "product_memberships" : [
        "Lotsawa"
      ],
      "sources" : [
        "AdjacencyMatrix.swift",
        "Array+Extensions.swift",
        "BitSet.swift",
        "Chart.swift",
        "Collection+Extensions.swift",
        "DiscreteMap.swift",
        "Forest.swift",
        "Grammar.swift",
        "ItemID.swift",
        "MultiMap.swift",
        "Nullability.swift",
        "PreprocessedGrammar.swift",
        "Recognizer.swift",
        "UniqueCounter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Lotsawa"
    ]
  }
}
2026-04-21 07:42:38.734 xcodebuild[747:4334] [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 Lotsawa -destination generic/platform=tvOS
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 Lotsawa -destination generic/platform=tvOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Lotsawa: /Users/admin/builder/spi-builder-workspace
  SPIManifest: https://github.com/SwiftPackageIndex/SPIManifest.git @ 0.19.0
  Yams: https://github.com/jpsim/Yams.git @ 5.4.0
  citron: https://github.com/dabrahams/citron.git @ 2.1.7
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'Lotsawa' in project 'Lotsawa'
        ➜ Explicit dependency on target 'Lotsawa' in project 'Lotsawa'
    Target 'Lotsawa' in project 'Lotsawa' (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/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.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: 212d83249360d67c41caa952814ce4c9
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/212d83249360d67c41caa952814ce4c9.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.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/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.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-appletvos
    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-appletvos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.DependencyStaticMetadataFileList (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.modulemap (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.DependencyMetadataFileList (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa_const_extract_protocols.json (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.SwiftConstValuesFileList (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-OutputFileMap.json (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.SwiftFileList (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.LinkFileList (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-appletvos/Lotsawa.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.modulemap (in target 'Lotsawa' from project 'Lotsawa')
    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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Lotsawa.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-appletvos
SwiftDriver Lotsawa normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Lotsawa' from project 'Lotsawa')
    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 Lotsawa -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.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/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -target arm64-apple-tvos12.0 -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 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.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/Lotsawa.build/Debug-appletvos/Lotsawa.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-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/SwiftShims-9YF1YACEBW6IEGLI4RGNNNLKV.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-96MY5YMIZE1U4MOE11R9ULKIT.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ Lotsawa (in target 'Lotsawa' from project 'Lotsawa')
EmitSwiftModule normal arm64 (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:87:5: warning: '@dynamicMemberLookup' requires 'subscript(dynamicMember:)' to be as accessible as its enclosing type; this will be an error in a future Swift language mode
    subscript<Target>(dynamicMember m: KeyPath<ItemID, Target>) -> Target {
    ^
    public
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:121:64: error: 'some' return types are only available in tvOS 13.0.0 or newer
  func transitionItems(on s: Symbol, inEarleySet i: UInt32) -> some BidirectionalCollection<ItemID>
                                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:121:8: note: add '@available' attribute to enclosing instance method
  func transitionItems(on s: Symbol, inEarleySet i: UInt32) -> some BidirectionalCollection<ItemID>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:57:1: note: add '@available' attribute to enclosing extension
extension Chart {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:142:8: error: 'some' return types are only available in tvOS 13.0.0 or newer
    -> some BidirectionalCollection<Entries.Index>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:141:8: note: add '@available' attribute to enclosing instance method
  func mainstemIndices(of x: ItemID, inEarleySet i: UInt32)
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:57:1: note: add '@available' attribute to enclosing extension
extension Chart {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:249:8: error: 'some' return types are only available in tvOS 13.0.0 or newer
    -> Optional<some BidirectionalCollection<Entry>>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:248:8: note: add '@available' attribute to enclosing instance method
  func leoDerivations(awaiting s: Symbol, at i: SourcePosition)
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:245:1: note: add '@available' attribute to enclosing extension
extension Chart {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:11:40: error: 'some' return types are only available in tvOS 13.0.0 or newer
  func droppingAdjacentDuplicates() -> some Collection<Element>
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:11:8: note: add '@available' attribute to enclosing instance method
  func droppingAdjacentDuplicates() -> some Collection<Element>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:8:1: note: add '@available' attribute to enclosing extension
extension Collection where Element: Equatable {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:23:8: error: 'some' return types are only available in tvOS 13.0.0 or newer
    -> some BidirectionalCollection<Element>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:22:8: note: add '@available' attribute to enclosing instance method
  func keepingFirstOfAdjacentDuplicates(equivalence: @escaping (Element, Element)->Bool)
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:19:1: note: add '@available' attribute to enclosing extension
extension BidirectionalCollection {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:34:40: error: 'some' return types are only available in tvOS 13.0.0 or newer
  func droppingAdjacentDuplicates() -> some BidirectionalCollection<Element>
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:34:8: note: add '@available' attribute to enclosing instance method
  func droppingAdjacentDuplicates() -> some BidirectionalCollection<Element>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:31:1: note: add '@available' attribute to enclosing extension
extension BidirectionalCollection where Element: Equatable {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift:281:26: error: 'some' return types are only available in tvOS 13.0.0 or newer
  public var rhsOrigins: some BidirectionalCollection<SourcePosition> {
                         ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift:281:14: note: add '@available' attribute to enclosing property
  public var rhsOrigins: some BidirectionalCollection<SourcePosition> {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift:273:1: note: add '@available' attribute to enclosing extension
extension Forest.Derivation {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:78:23: error: 'some' return types are only available in tvOS 13.0.0 or newer
  public var ruleIDs: some RandomAccessCollection<RuleID> {
                      ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:78:14: note: add '@available' attribute to enclosing property
  public var ruleIDs: some RandomAccessCollection<RuleID> {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:64:1: note: add '@available' attribute to enclosing extension
extension Grammar {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:109:21: error: 'some' return types are only available in tvOS 13.0.0 or newer
  public var rules: some RandomAccessCollection<Rule> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:109:14: note: add '@available' attribute to enclosing property
  public var rules: some RandomAccessCollection<Rule> {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:64:1: note: add '@available' attribute to enclosing extension
extension Grammar {
^
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/Lotsawa/AdjacencyMatrix.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Array+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/BitSet.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/DiscreteMap.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/ItemID.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/MultiMap.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Nullability.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/PreprocessedGrammar.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Recognizer.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/UniqueCounter.swift -target arm64-apple-tvos12.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.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 -profile-generate -profile-coverage-mapping -swift-version 5 -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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa_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/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Lotsawa -frontend-parseable-output -disable-clang-spi -clang-target arm64-apple-tvos26.4 -target-sdk-version 26.4 -target-sdk-name appletvos26.4 -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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.abi.json
SwiftCompile normal arm64 Compiling\ PreprocessedGrammar.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/PreprocessedGrammar.swift (in target 'Lotsawa' from project 'Lotsawa')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/PreprocessedGrammar.swift (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Array+Extensions.swift (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

SwiftCompile normal arm64 Compiling\ Collection+Extensions.swift,\ DiscreteMap.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/DiscreteMap.swift (in target 'Lotsawa' from project 'Lotsawa')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

SwiftCompile normal arm64 Compiling\ Forest.swift,\ Grammar.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift (in target 'Lotsawa' from project 'Lotsawa')
2026-04-21 07:42:42.516 xcodebuild[779:4615] [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 'Lotsawa' from project 'Lotsawa')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ Lotsawa (in target 'Lotsawa' from project 'Lotsawa')
	Building workspace spi-builder-workspace with scheme Lotsawa
(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:
  Yams: https://github.com/jpsim/Yams.git @ 5.4.0
  Lotsawa: /Users/admin/builder/spi-builder-workspace
  citron: https://github.com/dabrahams/citron.git @ 2.1.7
  SPIManifest: https://github.com/SwiftPackageIndex/SPIManifest.git @ 0.19.0
resolved source packages: Yams, Lotsawa, citron, SPIManifest
2026-04-21 07:42:47.144 xcodebuild[849:5006] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "citron",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.1.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/dabrahams/citron.git"
    },
    {
      "identity" : "spimanifest",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/SwiftPackageIndex/SPIManifest.git"
    }
  ],
  "manifest_display_name" : "Lotsawa",
  "name" : "Lotsawa",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "Lotsawa",
      "targets" : [
        "Lotsawa"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LotsawaTests",
      "module_type" : "SwiftTarget",
      "name" : "LotsawaTests",
      "path" : "Tests/LotsawaTests",
      "product_dependencies" : [
        "CitronParserModule",
        "CitronLexerModule",
        "CitronParserGenerator"
      ],
      "sources" : [
        "AdjacencyMatrixTests.swift",
        "BitSetTests.swift",
        "ChartInternalTests.swift",
        "DiscreteMapTests.swift",
        "ForestTests.swift",
        "GrammarInternalTests.swift",
        "GrammarPreprocessing.swift",
        "GrammarPreprocessingTests.swift",
        "GrammarTests.swift",
        "RecognizerTests.swift",
        "Utils/DebugChart.swift",
        "Utils/DebugForest.swift",
        "Utils/DebugGrammar.swift",
        "Utils/DebugGrammarScanner.swift",
        "Utils/DebugRecognizer.swift",
        "Utils/Incidental.swift",
        "Utils/Lotsawa+Extensions.swift",
        "Utils/ParseGeneration.swift",
        "Utils/Swift+Extensions.swift"
      ],
      "target_dependencies" : [
        "Lotsawa"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Lotsawa",
      "module_type" : "SwiftTarget",
      "name" : "Lotsawa",
      "path" : "Sources/Lotsawa",
      "product_memberships" : [
        "Lotsawa"
      ],
      "sources" : [
        "AdjacencyMatrix.swift",
        "Array+Extensions.swift",
        "BitSet.swift",
        "Chart.swift",
        "Collection+Extensions.swift",
        "DiscreteMap.swift",
        "Forest.swift",
        "Grammar.swift",
        "ItemID.swift",
        "MultiMap.swift",
        "Nullability.swift",
        "PreprocessedGrammar.swift",
        "Recognizer.swift",
        "UniqueCounter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Lotsawa"
    ]
  }
}
2026-04-21 07:42:48.777 xcodebuild[862:5118] [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 Lotsawa -destination generic/platform=tvOS
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 Lotsawa -destination generic/platform=tvOS
Resolve Package Graph
Resolved source packages:
  citron: https://github.com/dabrahams/citron.git @ 2.1.7
  Yams: https://github.com/jpsim/Yams.git @ 5.4.0
  SPIManifest: https://github.com/SwiftPackageIndex/SPIManifest.git @ 0.19.0
  Lotsawa: /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 'Lotsawa' in project 'Lotsawa'
        ➜ Explicit dependency on target 'Lotsawa' in project 'Lotsawa'
    Target 'Lotsawa' in project 'Lotsawa' (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/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.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/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache
SwiftDriver Lotsawa normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Lotsawa' from project 'Lotsawa')
    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 Lotsawa -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.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/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -target arm64-apple-tvos12.0 -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 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.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/Lotsawa.build/Debug-appletvos/Lotsawa.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ BitSet.swift,\ Chart.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/BitSet.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift (in target 'Lotsawa' from project 'Lotsawa')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/BitSet.swift (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

SwiftCompile normal arm64 Compiling\ Collection+Extensions.swift,\ DiscreteMap.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/DiscreteMap.swift (in target 'Lotsawa' from project 'Lotsawa')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Array+Extensions.swift (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

SwiftEmitModule normal arm64 Emitting\ module\ for\ Lotsawa (in target 'Lotsawa' from project 'Lotsawa')
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/Lotsawa/AdjacencyMatrix.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Array+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/BitSet.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/DiscreteMap.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/ItemID.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/MultiMap.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Nullability.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/PreprocessedGrammar.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Recognizer.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/UniqueCounter.swift -target arm64-apple-tvos12.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.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 -profile-generate -profile-coverage-mapping -swift-version 5 -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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa_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/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Lotsawa -frontend-parseable-output -disable-clang-spi -clang-target arm64-apple-tvos26.4 -target-sdk-version 26.4 -target-sdk-name appletvos26.4 -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/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Lotsawa.build/Debug-appletvos/Lotsawa.build/Objects-normal/arm64/Lotsawa.abi.json
EmitSwiftModule normal arm64 (in target 'Lotsawa' from project 'Lotsawa')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:87:5: warning: '@dynamicMemberLookup' requires 'subscript(dynamicMember:)' to be as accessible as its enclosing type; this will be an error in a future Swift language mode
    subscript<Target>(dynamicMember m: KeyPath<ItemID, Target>) -> Target {
    ^
    public
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:121:64: error: 'some' return types are only available in tvOS 13.0.0 or newer
  func transitionItems(on s: Symbol, inEarleySet i: UInt32) -> some BidirectionalCollection<ItemID>
                                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:121:8: note: add '@available' attribute to enclosing instance method
  func transitionItems(on s: Symbol, inEarleySet i: UInt32) -> some BidirectionalCollection<ItemID>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:57:1: note: add '@available' attribute to enclosing extension
extension Chart {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:142:8: error: 'some' return types are only available in tvOS 13.0.0 or newer
    -> some BidirectionalCollection<Entries.Index>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:141:8: note: add '@available' attribute to enclosing instance method
  func mainstemIndices(of x: ItemID, inEarleySet i: UInt32)
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:57:1: note: add '@available' attribute to enclosing extension
extension Chart {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:249:8: error: 'some' return types are only available in tvOS 13.0.0 or newer
    -> Optional<some BidirectionalCollection<Entry>>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:248:8: note: add '@available' attribute to enclosing instance method
  func leoDerivations(awaiting s: Symbol, at i: SourcePosition)
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Chart.swift:245:1: note: add '@available' attribute to enclosing extension
extension Chart {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:11:40: error: 'some' return types are only available in tvOS 13.0.0 or newer
  func droppingAdjacentDuplicates() -> some Collection<Element>
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:11:8: note: add '@available' attribute to enclosing instance method
  func droppingAdjacentDuplicates() -> some Collection<Element>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:8:1: note: add '@available' attribute to enclosing extension
extension Collection where Element: Equatable {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:23:8: error: 'some' return types are only available in tvOS 13.0.0 or newer
    -> some BidirectionalCollection<Element>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:22:8: note: add '@available' attribute to enclosing instance method
  func keepingFirstOfAdjacentDuplicates(equivalence: @escaping (Element, Element)->Bool)
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:19:1: note: add '@available' attribute to enclosing extension
extension BidirectionalCollection {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:34:40: error: 'some' return types are only available in tvOS 13.0.0 or newer
  func droppingAdjacentDuplicates() -> some BidirectionalCollection<Element>
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:34:8: note: add '@available' attribute to enclosing instance method
  func droppingAdjacentDuplicates() -> some BidirectionalCollection<Element>
       ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Collection+Extensions.swift:31:1: note: add '@available' attribute to enclosing extension
extension BidirectionalCollection where Element: Equatable {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift:281:26: error: 'some' return types are only available in tvOS 13.0.0 or newer
  public var rhsOrigins: some BidirectionalCollection<SourcePosition> {
                         ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift:281:14: note: add '@available' attribute to enclosing property
  public var rhsOrigins: some BidirectionalCollection<SourcePosition> {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Forest.swift:273:1: note: add '@available' attribute to enclosing extension
extension Forest.Derivation {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:78:23: error: 'some' return types are only available in tvOS 13.0.0 or newer
  public var ruleIDs: some RandomAccessCollection<RuleID> {
                      ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:78:14: note: add '@available' attribute to enclosing property
  public var ruleIDs: some RandomAccessCollection<RuleID> {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:64:1: note: add '@available' attribute to enclosing extension
extension Grammar {
^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:109:21: error: 'some' return types are only available in tvOS 13.0.0 or newer
  public var rules: some RandomAccessCollection<Rule> {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:109:14: note: add '@available' attribute to enclosing property
  public var rules: some RandomAccessCollection<Rule> {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/Grammar.swift:64:1: note: add '@available' attribute to enclosing extension
extension Grammar {
^
SwiftCompile normal arm64 Compiling\ UniqueCounter.swift /Users/admin/builder/spi-builder-workspace/Sources/Lotsawa/UniqueCounter.swift (in target 'Lotsawa' from project 'Lotsawa')
2026-04-21 07:42:50.094 xcodebuild[868:5179] [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\ Lotsawa (in target 'Lotsawa' from project 'Lotsawa')
	EmitSwiftModule normal arm64 (in target 'Lotsawa' from project 'Lotsawa')
	Building workspace spi-builder-workspace with scheme Lotsawa
(3 failures)
BUILD FAILURE 6.3 tvOS