Swift Package Index

Build Information

Failed to build AsyncSequenceReader, reference main (e2f0c0), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 23 Jul 2026 15:56:53 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: undefined version: run 'make version' to update
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mochidev/AsyncSequenceReader.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mochidev/AsyncSequenceReader
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e2f0c00 Updated README for Version 0.5.0
Cloned https://github.com/mochidev/AsyncSequenceReader.git
Revision (git rev-parse @):
e2f0c00ce9a3f89e76c9b08d73101e0d42493990
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mochidev/AsyncSequenceReader.git at main
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mochidev/AsyncSequenceReader.git
https://github.com/mochidev/AsyncSequenceReader.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncSequenceReader",
  "name" : "AsyncSequenceReader",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncSequenceReader",
      "targets" : [
        "AsyncSequenceReader"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncSequenceReaderTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReaderTests",
      "path" : "Tests/AsyncSequenceReaderTests",
      "sources" : [
        "AnyReadableSequenceTests.swift",
        "AsyncBufferedIteratorTests.swift",
        "AsyncIteratorMapSequenceTests.swift",
        "AsyncIteratorProtocol+NonIsolated.swift",
        "AsyncReadUpToCountSequenceTests.swift",
        "AsyncReadUpToElementsSequenceTests.swift",
        "AsyncSequenceReaderErrorTests.swift",
        "AsyncSequenceReaderTests.swift",
        "ExitTest.Result+Lines.swift",
        "TestSequence.swift"
      ],
      "target_dependencies" : [
        "AsyncSequenceReader"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncSequenceReader",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReader",
      "path" : "Sources/AsyncSequenceReader",
      "product_memberships" : [
        "AsyncSequenceReader"
      ],
      "sources" : [
        "AnyReadableSequence.swift",
        "AsyncBufferedIterator.swift",
        "AsyncIteratorMapSequence.swift",
        "AsyncIteratorProtocol+Isolated.swift",
        "AsyncReadSequence.swift",
        "AsyncReadUpToCountSequence.swift",
        "AsyncReadUpToElementsSequence.swift",
        "AsyncSequenceReader.swift",
        "AsyncSequenceReaderError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
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
Resolve Package Graph
Resolved source packages:
  AsyncSequenceReader: /Users/admin/builder/spi-builder-workspace
resolved source packages: AsyncSequenceReader
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncSequenceReader",
  "name" : "AsyncSequenceReader",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncSequenceReader",
      "targets" : [
        "AsyncSequenceReader"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncSequenceReaderTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReaderTests",
      "path" : "Tests/AsyncSequenceReaderTests",
      "sources" : [
        "AnyReadableSequenceTests.swift",
        "AsyncBufferedIteratorTests.swift",
        "AsyncIteratorMapSequenceTests.swift",
        "AsyncIteratorProtocol+NonIsolated.swift",
        "AsyncReadUpToCountSequenceTests.swift",
        "AsyncReadUpToElementsSequenceTests.swift",
        "AsyncSequenceReaderErrorTests.swift",
        "AsyncSequenceReaderTests.swift",
        "ExitTest.Result+Lines.swift",
        "TestSequence.swift"
      ],
      "target_dependencies" : [
        "AsyncSequenceReader"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncSequenceReader",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReader",
      "path" : "Sources/AsyncSequenceReader",
      "product_memberships" : [
        "AsyncSequenceReader"
      ],
      "sources" : [
        "AnyReadableSequence.swift",
        "AsyncBufferedIterator.swift",
        "AsyncIteratorMapSequence.swift",
        "AsyncIteratorProtocol+Isolated.swift",
        "AsyncReadSequence.swift",
        "AsyncReadUpToCountSequence.swift",
        "AsyncReadUpToElementsSequence.swift",
        "AsyncSequenceReader.swift",
        "AsyncSequenceReaderError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "AsyncSequenceReader"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncSequenceReader -destination platform=macOS,arch=arm64 OTHER_SWIFT_FLAGS=-stats-output-dir .stats
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 AsyncSequenceReader -destination platform=macOS,arch=arm64 "OTHER_SWIFT_FLAGS=-stats-output-dir .stats"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats
Resolve Package Graph
Resolved source packages:
  AsyncSequenceReader: /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 'AsyncSequenceReader' in project 'AsyncSequenceReader'
        ➜ Explicit dependency on target 'AsyncSequenceReader' in project 'AsyncSequenceReader'
    Target 'AsyncSequenceReader' in project 'AsyncSequenceReader' (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
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: cd4016aae29fc4df77a8bd72fc6fc266
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/cd4016aae29fc4df77a8bd72fc6fc266.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
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/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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.modulemap (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.DependencyMetadataFileList (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.DependencyStaticMetadataFileList (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_const_extract_protocols.json (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.SwiftFileList (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.SwiftConstValuesFileList (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader-OutputFileMap.json (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.LinkFileList (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/AsyncSequenceReader.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.modulemap (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/AsyncSequenceReader.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver AsyncSequenceReader normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    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 AsyncSequenceReader -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -stats-output-dir .stats -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-macos10.15 -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader-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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0.	Program arguments: /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AnyReadableSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorMapSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorProtocol+Isolated.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReader.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReaderError.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.dia -target arm64-apple-macos10.15 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -module-name AsyncSequenceReader -package-name spi_builder_workspace -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-unit-output-path /AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
1.	Apple Swift version 6.1 (swiftlang-6.1.0.110.21 clang-1700.0.13.3)
2.	Compiling with the current language version
3.	While evaluating request IRGenRequest(IR Generation for file "/Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift")
4.	While emitting IR SIL function "@$sScI19AsyncSequenceReaders5NeverO7FailureRtzrlE7collect9isolation_Say7ElementQzGSgScA_pSgYi_SitYaAA0abC5ErrorVYKF".
 for 'collect(isolation:_:)' (at /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift:79:21)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend           0x00000001092b2c28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1  swift-frontend           0x00000001092b0a60 llvm::sys::RunSignalHandlers() + 112
2  swift-frontend           0x00000001092b3264 SignalHandler(int) + 360
3  libsystem_platform.dylib 0x0000000187d4f624 _sigtramp + 56
4  swift-frontend           0x000000010353f9d0 (anonymous namespace)::AsyncCallEmission::setFromCallee() + 728
5  swift-frontend           0x000000010353f9d0 (anonymous namespace)::AsyncCallEmission::setFromCallee() + 728
6  swift-frontend           0x00000001035253c0 swift::irgen::getCallEmission(swift::irgen::IRGenFunction&, llvm::Value*, swift::irgen::Callee&&) + 888
7  swift-frontend           0x000000010379f888 (anonymous namespace)::IRGenSILFunction::visitFullApplySite(swift::FullApplySite) + 3268
8  swift-frontend           0x00000001037704e4 (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) + 2636
9  swift-frontend           0x000000010376e38c (anonymous namespace)::IRGenSILFunction::emitSILFunction() + 15860
10 swift-frontend           0x000000010376a0e0 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) + 2788
11 swift-frontend           0x000000010358d560 swift::irgen::IRGenerator::emitGlobalTopLevel(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&) + 2044
12 swift-frontend           0x000000010371b9fc swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const + 4296
13 swift-frontend           0x000000010376933c swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) + 180
14 swift-frontend           0x0000000103724f28 swift::IRGenRequest::OutputType swift::Evaluator::getResultUncached<swift::IRGenRequest, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()>(swift::IRGenRequest const&, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()) + 812
15 swift-frontend           0x000000010371e688 swift::performIRGeneration(swift::FileUnit*, swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::StringRef, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::GlobalVariable**) + 176
16 swift-frontend           0x0000000103109af0 generateIR(swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, llvm::GlobalVariable*&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>) + 156
17 swift-frontend           0x000000010310507c performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 2108
18 swift-frontend           0x00000001031040a8 swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1036
19 swift-frontend           0x0000000103107654 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1764
20 swift-frontend           0x0000000103105fd8 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3716
21 swift-frontend           0x000000010308a0bc swift::mainEntry(int, char const**) + 5428
22 dyld                     0x0000000187976b4c start + 6000
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/AsyncSequenceReader/AnyReadableSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorMapSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorProtocol+Isolated.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReader.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReaderError.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.dia -target arm64-apple-macos10.15 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name AsyncSequenceReader -package-name spi_builder_workspace -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-unit-output-path /AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
Command SwiftCompile failed with a nonzero exit code
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

SwiftCompile normal arm64 Compiling\ AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0.	Program arguments: /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AnyReadableSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorMapSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorProtocol+Isolated.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReader.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReaderError.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.dia -target arm64-apple-macos10.15 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -module-name AsyncSequenceReader -package-name spi_builder_workspace -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.o -index-unit-output-path /AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
1.	Apple Swift version 6.1 (swiftlang-6.1.0.110.21 clang-1700.0.13.3)
2.	Compiling with the current language version
3.	While evaluating request IRGenRequest(IR Generation for file "/Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift")
4.	While emitting IR SIL function "@$sScI19AsyncSequenceReaderSQ7ElementRpzs5NeverO7FailureRtzrlE7collect9isolation13upToIncluding12throwsIfOverSayACGSgScA_pSgYi_ACSitYaAA0abC5ErrorVYKF".
 for 'collect(isolation:upToIncluding:throwsIfOver:)' (at /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift:203:21)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend           0x000000010a622c28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1  swift-frontend           0x000000010a620a60 llvm::sys::RunSignalHandlers() + 112
2  swift-frontend           0x000000010a623264 SignalHandler(int) + 360
3  libsystem_platform.dylib 0x0000000187d4f624 _sigtramp + 56
4  swift-frontend           0x00000001048af9d0 (anonymous namespace)::AsyncCallEmission::setFromCallee() + 728
5  swift-frontend           0x00000001048af9d0 (anonymous namespace)::AsyncCallEmission::setFromCallee() + 728
6  swift-frontend           0x00000001048953c0 swift::irgen::getCallEmission(swift::irgen::IRGenFunction&, llvm::Value*, swift::irgen::Callee&&) + 888
7  swift-frontend           0x0000000104b0f888 (anonymous namespace)::IRGenSILFunction::visitFullApplySite(swift::FullApplySite) + 3268
8  swift-frontend           0x0000000104ae04e4 (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) + 2636
9  swift-frontend           0x0000000104ade38c (anonymous namespace)::IRGenSILFunction::emitSILFunction() + 15860
10 swift-frontend           0x0000000104ada0e0 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) + 2788
11 swift-frontend           0x00000001048fd560 swift::irgen::IRGenerator::emitGlobalTopLevel(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&) + 2044
12 swift-frontend           0x0000000104a8b9fc swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const + 4296
13 swift-frontend           0x0000000104ad933c swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) + 180
14 swift-frontend           0x0000000104a94f28 swift::IRGenRequest::OutputType swift::Evaluator::getResultUncached<swift::IRGenRequest, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()>(swift::IRGenRequest const&, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()) + 812
15 swift-frontend           0x0000000104a8e688 swift::performIRGeneration(swift::FileUnit*, swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::StringRef, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::GlobalVariable**) + 176
16 swift-frontend           0x0000000104479af0 generateIR(swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, llvm::GlobalVariable*&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>) + 156
17 swift-frontend           0x000000010447507c performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 2108
18 swift-frontend           0x00000001044740a8 swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1036
19 swift-frontend           0x0000000104477654 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1764
20 swift-frontend           0x0000000104475fd8 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3716
21 swift-frontend           0x00000001043fa0bc swift::mainEntry(int, char const**) + 5428
22 dyld                     0x0000000187976b4c start + 6000
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/AsyncSequenceReader/AnyReadableSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorMapSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorProtocol+Isolated.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReader.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReaderError.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.dia -target arm64-apple-macos10.15 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name AsyncSequenceReader -package-name spi_builder_workspace -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.o -index-unit-output-path /AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToElementsSequence.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
Command SwiftCompile failed with a nonzero exit code
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
	SwiftCompile normal arm64 Compiling\ AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
	Building workspace spi-builder-workspace with scheme AsyncSequenceReader
(3 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:
  AsyncSequenceReader: /Users/admin/builder/spi-builder-workspace
resolved source packages: AsyncSequenceReader
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncSequenceReader",
  "name" : "AsyncSequenceReader",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncSequenceReader",
      "targets" : [
        "AsyncSequenceReader"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncSequenceReaderTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReaderTests",
      "path" : "Tests/AsyncSequenceReaderTests",
      "sources" : [
        "AnyReadableSequenceTests.swift",
        "AsyncBufferedIteratorTests.swift",
        "AsyncIteratorMapSequenceTests.swift",
        "AsyncIteratorProtocol+NonIsolated.swift",
        "AsyncReadUpToCountSequenceTests.swift",
        "AsyncReadUpToElementsSequenceTests.swift",
        "AsyncSequenceReaderErrorTests.swift",
        "AsyncSequenceReaderTests.swift",
        "ExitTest.Result+Lines.swift",
        "TestSequence.swift"
      ],
      "target_dependencies" : [
        "AsyncSequenceReader"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncSequenceReader",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReader",
      "path" : "Sources/AsyncSequenceReader",
      "product_memberships" : [
        "AsyncSequenceReader"
      ],
      "sources" : [
        "AnyReadableSequence.swift",
        "AsyncBufferedIterator.swift",
        "AsyncIteratorMapSequence.swift",
        "AsyncIteratorProtocol+Isolated.swift",
        "AsyncReadSequence.swift",
        "AsyncReadUpToCountSequence.swift",
        "AsyncReadUpToElementsSequence.swift",
        "AsyncSequenceReader.swift",
        "AsyncSequenceReaderError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "AsyncSequenceReader"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncSequenceReader -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 AsyncSequenceReader -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  AsyncSequenceReader: /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 'AsyncSequenceReader' in project 'AsyncSequenceReader'
        ➜ Explicit dependency on target 'AsyncSequenceReader' in project 'AsyncSequenceReader'
    Target 'AsyncSequenceReader' in project 'AsyncSequenceReader' (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
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 16c7ca126eb6f73e4506e6e649adc3b7
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/16c7ca126eb6f73e4506e6e649adc3b7.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 AsyncSequenceReader normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    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 AsyncSequenceReader -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DXcode -enable-upcoming-feature ExistentialAny -enable-upcoming-feature InternalImportsByDefault -enable-upcoming-feature MemberImportVisibility -enable-upcoming-feature InferIsolatedConformances -enable-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature ImmutableWeakCaptures -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-macos10.15 -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader-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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ AsyncReadSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

SwiftCompile normal arm64 Compiling\ AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0.	Program arguments: /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AnyReadableSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorMapSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorProtocol+Isolated.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReader.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReaderError.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.dia -target arm64-apple-macos10.15 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_const_extract_protocols.json -enable-upcoming-feature ExistentialAny -enable-upcoming-feature InternalImportsByDefault -enable-upcoming-feature MemberImportVisibility -enable-upcoming-feature InferIsolatedConformances -enable-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature ImmutableWeakCaptures -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -module-name AsyncSequenceReader -package-name spi_builder_workspace -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-unit-output-path /AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
1.	Apple Swift version 6.1 (swiftlang-6.1.0.110.21 clang-1700.0.13.3)
2.	Compiling with the current language version
3.	While evaluating request IRGenRequest(IR Generation for file "/Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift")
4.	While emitting IR SIL function "@$sScI19AsyncSequenceReaders5NeverO7FailureRtzrlE7collect9isolation_Say7ElementQzGSgScA_pSgYi_SitYaAA0abC5ErrorVYKF".
 for 'collect(isolation:_:)' (at /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift:79:21)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend           0x0000000108af6c28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1  swift-frontend           0x0000000108af4a60 llvm::sys::RunSignalHandlers() + 112
2  swift-frontend           0x0000000108af7264 SignalHandler(int) + 360
3  libsystem_platform.dylib 0x0000000187d4f624 _sigtramp + 56
4  swift-frontend           0x0000000102d839d0 (anonymous namespace)::AsyncCallEmission::setFromCallee() + 728
5  swift-frontend           0x0000000102d839d0 (anonymous namespace)::AsyncCallEmission::setFromCallee() + 728
6  swift-frontend           0x0000000102d693c0 swift::irgen::getCallEmission(swift::irgen::IRGenFunction&, llvm::Value*, swift::irgen::Callee&&) + 888
7  swift-frontend           0x0000000102fe3888 (anonymous namespace)::IRGenSILFunction::visitFullApplySite(swift::FullApplySite) + 3268
8  swift-frontend           0x0000000102fb44e4 (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) + 2636
9  swift-frontend           0x0000000102fb238c (anonymous namespace)::IRGenSILFunction::emitSILFunction() + 15860
10 swift-frontend           0x0000000102fae0e0 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) + 2788
11 swift-frontend           0x0000000102dd1560 swift::irgen::IRGenerator::emitGlobalTopLevel(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&) + 2044
12 swift-frontend           0x0000000102f5f9fc swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const + 4296
13 swift-frontend           0x0000000102fad33c swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) + 180
14 swift-frontend           0x0000000102f68f28 swift::IRGenRequest::OutputType swift::Evaluator::getResultUncached<swift::IRGenRequest, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()>(swift::IRGenRequest const&, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()) + 812
15 swift-frontend           0x0000000102f62688 swift::performIRGeneration(swift::FileUnit*, swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::StringRef, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::GlobalVariable**) + 176
16 swift-frontend           0x000000010294daf0 generateIR(swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, llvm::GlobalVariable*&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>) + 156
17 swift-frontend           0x000000010294907c performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 2108
18 swift-frontend           0x00000001029480a8 swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1036
19 swift-frontend           0x000000010294b654 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1764
20 swift-frontend           0x0000000102949fd8 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3716
21 swift-frontend           0x00000001028ce0bc swift::mainEntry(int, char const**) + 5428
22 dyld                     0x0000000187976b4c start + 6000
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/AsyncSequenceReader/AnyReadableSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncBufferedIterator.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorMapSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncIteratorProtocol+Isolated.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadSequence.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToElementsSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReader.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncSequenceReaderError.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.dia -target arm64-apple-macos10.15 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -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 6 -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncSequenceReader_const_extract_protocols.json -enable-upcoming-feature ExistentialAny -enable-upcoming-feature InternalImportsByDefault -enable-upcoming-feature MemberImportVisibility -enable-upcoming-feature InferIsolatedConformances -enable-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature ImmutableWeakCaptures -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name AsyncSequenceReader -package-name spi_builder_workspace -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/AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-unit-output-path /AsyncSequenceReader.build/Debug/AsyncSequenceReader.build/Objects-normal/arm64/AsyncReadUpToCountSequence.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
Command SwiftCompile failed with a nonzero exit code
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:5e470ac5af6e80708466701f15c30692fcf59a92, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ AsyncReadUpToCountSequence.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncSequenceReader/AsyncReadUpToCountSequence.swift (in target 'AsyncSequenceReader' from project 'AsyncSequenceReader')
	Building workspace spi-builder-workspace with scheme AsyncSequenceReader
(2 failures)
BUILD FAILURE 6.1 macosXcodebuild