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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build NumericAnnex, reference 0.1.19 (241ef9), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 25 Apr 2025 04:43:02 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme NumericAnnex -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/xwu/NumericAnnex.git
Reference: 0.1.19
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/xwu/NumericAnnex
 * tag               0.1.19     -> FETCH_HEAD
HEAD is now at 241ef9f Update README.md, podspec, and CHANGELOG.md
Cloned https://github.com/xwu/NumericAnnex.git
Revision (git rev-parse @):
241ef9fd836b879e31a81bb863c1f0be5899bae4
SUCCESS checkout https://github.com/xwu/NumericAnnex.git at 0.1.19
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/xwu/NumericAnnex.git
https://github.com/xwu/NumericAnnex.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "NumericAnnex",
  "name" : "NumericAnnex",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "NumericAnnex",
      "targets" : [
        "NumericAnnex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NumericAnnexTests",
      "module_type" : "SwiftTarget",
      "name" : "NumericAnnexTests",
      "path" : "Tests/NumericAnnexTests",
      "sources" : [
        "ComplexTests.swift",
        "DocumentationExampleTests.swift",
        "ExponentiationTests.swift",
        "FactoringTests.swift",
        "RandomXoroshiroTests.swift",
        "RandomXorshiftTests.swift",
        "RationalTests.swift",
        "RealTests.swift",
        "RootExtractionTests.swift"
      ],
      "target_dependencies" : [
        "NumericAnnex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "NumericAnnex",
      "module_type" : "SwiftTarget",
      "name" : "NumericAnnex",
      "path" : "Sources",
      "product_memberships" : [
        "NumericAnnex"
      ],
      "sources" : [
        "Complex.swift",
        "ExponentiationOperators.swift",
        "Hash.swift",
        "IntegerAlgorithms.swift",
        "Math.swift",
        "PRNG.swift",
        "Random.Xoroshiro.swift",
        "Random.swift",
        "Rational.swift",
        "Real.swift",
        "RoundingRule.swift",
        "Sign.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  NumericAnnex: /Users/admin/builder/spi-builder-workspace
resolved source packages: NumericAnnex
{
  "dependencies" : [
  ],
  "manifest_display_name" : "NumericAnnex",
  "name" : "NumericAnnex",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "NumericAnnex",
      "targets" : [
        "NumericAnnex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NumericAnnexTests",
      "module_type" : "SwiftTarget",
      "name" : "NumericAnnexTests",
      "path" : "Tests/NumericAnnexTests",
      "sources" : [
        "ComplexTests.swift",
        "DocumentationExampleTests.swift",
        "ExponentiationTests.swift",
        "FactoringTests.swift",
        "RandomXoroshiroTests.swift",
        "RandomXorshiftTests.swift",
        "RationalTests.swift",
        "RealTests.swift",
        "RootExtractionTests.swift"
      ],
      "target_dependencies" : [
        "NumericAnnex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "NumericAnnex",
      "module_type" : "SwiftTarget",
      "name" : "NumericAnnex",
      "path" : "Sources",
      "product_memberships" : [
        "NumericAnnex"
      ],
      "sources" : [
        "Complex.swift",
        "ExponentiationOperators.swift",
        "Hash.swift",
        "IntegerAlgorithms.swift",
        "Math.swift",
        "PRNG.swift",
        "Random.Xoroshiro.swift",
        "Random.swift",
        "Rational.swift",
        "Real.swift",
        "RoundingRule.swift",
        "Sign.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "NumericAnnex"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme NumericAnnex -destination platform=macOS,arch=arm64 OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Command line invocation:
    /Applications/Xcode-16.3.0.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 NumericAnnex -destination platform=macOS,arch=arm64 "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Resolve Package Graph
Resolved source packages:
  NumericAnnex: /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 'NumericAnnex' in project 'NumericAnnex'
        ➜ Explicit dependency on target 'NumericAnnex' in project 'NumericAnnex'
    Target 'NumericAnnex' in project 'NumericAnnex' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 34f013d98343e7b049ffe8a1613fbb82
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/34f013d98343e7b049ffe8a1613fbb82.xcbuilddata
ClangStatCache /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.DependencyStaticMetadataFileList (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.DependencyMetadataFileList (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.modulemap (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.SwiftFileList (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.SwiftConstValuesFileList (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.LinkFileList (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex-OutputFileMap.json (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex-OutputFileMap.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/NumericAnnex.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.modulemap (in target 'NumericAnnex' from project 'NumericAnnex')
    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/NumericAnnex.build/Debug/NumericAnnex.build/NumericAnnex.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver NumericAnnex normal arm64 com.apple.xcode.tools.swift.compiler (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name NumericAnnex -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -stats-output-dir .stats -strict-concurrency\=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -target arm64-apple-macos10.13 -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 -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex-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/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.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/NumericAnnex.build/Debug/NumericAnnex.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.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/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Random.Xoroshiro.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift:55:3: error: cannot find type 'SubSequence' in scope
  SubSequence : Sequence,
  ^~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift:56:14: error: cannot find type 'SubSequence' in scope
  Element == SubSequence.Element {
             ^~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift:36:22: error: type 'Random.Xoroshiro' does not conform to protocol 'IteratorProtocol'
  public final class Xoroshiro : PRNG {
                     ^
/Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift:36:22: error: type 'Random.Xoroshiro' does not conform to protocol 'Sequence'
  public final class Xoroshiro : PRNG {
                     ^
/Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift:36:22: note: add stubs for conformance
  public final class Xoroshiro : PRNG {
                     ^
Swift.IteratorProtocol.Element:2:16: note: protocol requires nested type 'Element'
associatedtype Element}
               ^
Failed frontend command:
/Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/Complex.swift /Users/admin/builder/spi-builder-workspace/Sources/ExponentiationOperators.swift /Users/admin/builder/spi-builder-workspace/Sources/Hash.swift /Users/admin/builder/spi-builder-workspace/Sources/IntegerAlgorithms.swift /Users/admin/builder/spi-builder-workspace/Sources/Math.swift /Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Rational.swift /Users/admin/builder/spi-builder-workspace/Sources/Real.swift /Users/admin/builder/spi-builder-workspace/Sources/RoundingRule.swift /Users/admin/builder/spi-builder-workspace/Sources/Sign.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.Xoroshiro.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.Xoroshiro.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.Xoroshiro.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.Xoroshiro.dia -target arm64-apple-macos10.13 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-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 -enforce-exclusivity\=checked -stats-output-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode/.stats -Onone -D SWIFT_PACKAGE -D DEBUG -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -enable-experimental-feature DebugDescriptionMacro -strict-concurrency\=complete -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.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 -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name NumericAnnex -frontend-parseable-output -disable-clang-spi -target-sdk-version 15.4 -target-sdk-name macosx15.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.Xoroshiro.o -index-unit-output-path /NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.Xoroshiro.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 Compiling\ PRNG.swift /Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
Failed frontend command:
/Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/Complex.swift /Users/admin/builder/spi-builder-workspace/Sources/ExponentiationOperators.swift /Users/admin/builder/spi-builder-workspace/Sources/Hash.swift /Users/admin/builder/spi-builder-workspace/Sources/IntegerAlgorithms.swift /Users/admin/builder/spi-builder-workspace/Sources/Math.swift /Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Rational.swift /Users/admin/builder/spi-builder-workspace/Sources/Real.swift /Users/admin/builder/spi-builder-workspace/Sources/RoundingRule.swift /Users/admin/builder/spi-builder-workspace/Sources/Sign.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.dia -target arm64-apple-macos10.13 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-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 -enforce-exclusivity\=checked -stats-output-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode/.stats -Onone -D SWIFT_PACKAGE -D DEBUG -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -enable-experimental-feature DebugDescriptionMacro -strict-concurrency\=complete -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.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 -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name NumericAnnex -frontend-parseable-output -disable-clang-spi -target-sdk-version 15.4 -target-sdk-name macosx15.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.o -index-unit-output-path /NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.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/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift:55:3: error: cannot find type 'SubSequence' in scope
  SubSequence : Sequence,
  ^~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift:56:14: error: cannot find type 'SubSequence' in scope
  Element == SubSequence.Element {
             ^~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/Random.swift:37:20: error: type 'Random' does not conform to protocol 'IteratorProtocol'
public final class Random : PRNG {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/Random.swift:37:20: error: type 'Random' does not conform to protocol 'Sequence'
public final class Random : PRNG {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/Random.swift:37:20: note: add stubs for conformance
public final class Random : PRNG {
                   ^
Swift.IteratorProtocol.Element:2:16: note: protocol requires nested type 'Element'
associatedtype Element}
               ^
SwiftCompile normal arm64 Compiling\ Math.swift /Users/admin/builder/spi-builder-workspace/Sources/Math.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Math.swift (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

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

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

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

SwiftCompile normal arm64 Compiling\ Sign.swift /Users/admin/builder/spi-builder-workspace/Sources/Sign.swift (in target 'NumericAnnex' from project 'NumericAnnex')
Command SwiftCompile failed with a nonzero exit code
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	SwiftCompile normal arm64 Compiling\ Random.Xoroshiro.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	SwiftCompile normal arm64 Compiling\ Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	SwiftCompile normal arm64 Compiling\ Sign.swift /Users/admin/builder/spi-builder-workspace/Sources/Sign.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	Building workspace spi-builder-workspace with scheme NumericAnnex
(6 failures)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  NumericAnnex: /Users/admin/builder/spi-builder-workspace
resolved source packages: NumericAnnex
{
  "dependencies" : [
  ],
  "manifest_display_name" : "NumericAnnex",
  "name" : "NumericAnnex",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "NumericAnnex",
      "targets" : [
        "NumericAnnex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NumericAnnexTests",
      "module_type" : "SwiftTarget",
      "name" : "NumericAnnexTests",
      "path" : "Tests/NumericAnnexTests",
      "sources" : [
        "ComplexTests.swift",
        "DocumentationExampleTests.swift",
        "ExponentiationTests.swift",
        "FactoringTests.swift",
        "RandomXoroshiroTests.swift",
        "RandomXorshiftTests.swift",
        "RationalTests.swift",
        "RealTests.swift",
        "RootExtractionTests.swift"
      ],
      "target_dependencies" : [
        "NumericAnnex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "NumericAnnex",
      "module_type" : "SwiftTarget",
      "name" : "NumericAnnex",
      "path" : "Sources",
      "product_memberships" : [
        "NumericAnnex"
      ],
      "sources" : [
        "Complex.swift",
        "ExponentiationOperators.swift",
        "Hash.swift",
        "IntegerAlgorithms.swift",
        "Math.swift",
        "PRNG.swift",
        "Random.Xoroshiro.swift",
        "Random.swift",
        "Rational.swift",
        "Real.swift",
        "RoundingRule.swift",
        "Sign.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "NumericAnnex"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme NumericAnnex -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-16.3.0.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 NumericAnnex -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  NumericAnnex: /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 'NumericAnnex' in project 'NumericAnnex'
        ➜ Explicit dependency on target 'NumericAnnex' in project 'NumericAnnex'
    Target 'NumericAnnex' in project 'NumericAnnex' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: dbd27568a4f89b752244cdd64b77ef7a
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/dbd27568a4f89b752244cdd64b77ef7a.xcbuilddata
ClangStatCache /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
SwiftDriver NumericAnnex normal arm64 com.apple.xcode.tools.swift.compiler (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name NumericAnnex -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DXcode -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -target arm64-apple-macos10.13 -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 -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex-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/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex.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/NumericAnnex.build/Debug/NumericAnnex.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.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/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Hash.swift,\ IntegerAlgorithms.swift /Users/admin/builder/spi-builder-workspace/Sources/Hash.swift /Users/admin/builder/spi-builder-workspace/Sources/IntegerAlgorithms.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Hash.swift (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

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

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

SwiftCompile normal arm64 Compiling\ Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
Failed frontend command:
/Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/Complex.swift /Users/admin/builder/spi-builder-workspace/Sources/ExponentiationOperators.swift /Users/admin/builder/spi-builder-workspace/Sources/Hash.swift /Users/admin/builder/spi-builder-workspace/Sources/IntegerAlgorithms.swift /Users/admin/builder/spi-builder-workspace/Sources/Math.swift /Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.Xoroshiro.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Rational.swift /Users/admin/builder/spi-builder-workspace/Sources/Real.swift /Users/admin/builder/spi-builder-workspace/Sources/RoundingRule.swift /Users/admin/builder/spi-builder-workspace/Sources/Sign.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.dia -target arm64-apple-macos10.13 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-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 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/NumericAnnex_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.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 -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name NumericAnnex -frontend-parseable-output -disable-clang-spi -target-sdk-version 15.4 -target-sdk-name macosx15.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.o -index-unit-output-path /NumericAnnex.build/Debug/NumericAnnex.build/Objects-normal/arm64/Random.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/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift:55:3: error: cannot find type 'SubSequence' in scope
  SubSequence : Sequence,
  ^~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/PRNG.swift:56:14: error: cannot find type 'SubSequence' in scope
  Element == SubSequence.Element {
             ^~~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/Random.swift:37:20: error: type 'Random' does not conform to protocol 'IteratorProtocol'
public final class Random : PRNG {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/Random.swift:37:20: error: type 'Random' does not conform to protocol 'Sequence'
public final class Random : PRNG {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/Random.swift:37:20: note: add stubs for conformance
public final class Random : PRNG {
                   ^
Swift.IteratorProtocol.Element:2:16: note: protocol requires nested type 'Element'
associatedtype Element}
               ^
SwiftEmitModule normal arm64 Emitting\ module\ for\ NumericAnnex (in target 'NumericAnnex' from project 'NumericAnnex')
EmitSwiftModule normal arm64 (in target 'NumericAnnex' from project 'NumericAnnex')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

SwiftCompile normal arm64 Compiling\ Real.swift /Users/admin/builder/spi-builder-workspace/Sources/Real.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftDriverJobDiscovery normal arm64 Compiling Sign.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftDriverJobDiscovery normal arm64 Compiling RoundingRule.swift (in target 'NumericAnnex' from project 'NumericAnnex')
SwiftDriverJobDiscovery normal arm64 Compiling Math.swift (in target 'NumericAnnex' from project 'NumericAnnex')
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:f03c3e23e5513e80e1eb8d56fe2d2bfda1f45878, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ Random.swift /Users/admin/builder/spi-builder-workspace/Sources/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Random.swift (in target 'NumericAnnex' from project 'NumericAnnex')
	Building workspace spi-builder-workspace with scheme NumericAnnex
(3 failures)
BUILD FAILURE 6.1 macosXcodebuild