AsyncMonitor – Build Information

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Build Information

Failed to build AsyncMonitor, reference 0.3.1 (d622d3), with Swift 6.2 for macOS (Xcode) using Xcode 26.0 on 24 Jun 2025 05:38:26 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncMonitor -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/samsonjs/AsyncMonitor.git
Reference: 0.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/samsonjs/AsyncMonitor
 * tag               0.3.1      -> FETCH_HEAD
HEAD is now at d622d32 Update Readme.md
Cloned https://github.com/samsonjs/AsyncMonitor.git
Revision (git rev-parse @):
d622d32134e6f4bfa5de3f0cd3a33a98a8154b7a
SUCCESS checkout https://github.com/samsonjs/AsyncMonitor.git at 0.3.1
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.2
Building package at path:  $PWD
https://github.com/samsonjs/AsyncMonitor.git
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  AsyncMonitor: /Users/admin/builder/spi-builder-workspace
resolved source packages: AsyncMonitor
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncMonitor",
  "name" : "AsyncMonitor",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "17.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncMonitor",
      "targets" : [
        "AsyncMonitor"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncMonitorTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncMonitorTests",
      "path" : "Tests/AsyncMonitorTests",
      "sources" : [
        "AnyAsyncCancellableTests.swift",
        "AsyncCancellableTests.swift",
        "AsyncMonitorTests.swift",
        "AsyncSequence+Just.swift",
        "NSObject+AsyncKVOTests.swift",
        "ReadmeExamples.swift",
        "TestCancellable.swift"
      ],
      "target_dependencies" : [
        "AsyncMonitor"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncMonitor",
      "module_type" : "SwiftTarget",
      "name" : "AsyncMonitor",
      "path" : "Sources/AsyncMonitor",
      "product_memberships" : [
        "AsyncMonitor"
      ],
      "sources" : [
        "AnyAsyncCancellable.swift",
        "AsyncCancellable.swift",
        "AsyncMonitor.swift",
        "AsyncSequence+Extensions.swift",
        "NSObject+AsyncKVO.swift",
        "ValueLocker.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "AsyncMonitor"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncMonitor -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.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 AsyncMonitor -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  AsyncMonitor: /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 'AsyncMonitor' in project 'AsyncMonitor'
        ➜ Explicit dependency on target 'AsyncMonitor' in project 'AsyncMonitor'
    Target 'AsyncMonitor' in project 'AsyncMonitor' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 952bb1d8dd3767d5f4ae366a2faf8b4e
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/952bb1d8dd3767d5f4ae366a2faf8b4e.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
ClangStatCache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache
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/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/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/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.DependencyStaticMetadataFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.DependencyMetadataFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.modulemap (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftConstValuesFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.LinkFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/AsyncMonitor.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.modulemap (in target 'AsyncMonitor' from project 'AsyncMonitor')
    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/AsyncMonitor.build/Debug/AsyncMonitor.build/AsyncMonitor.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver AsyncMonitor normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name AsyncMonitor -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos14.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.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/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.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/AsyncMonitor.build/Debug/AsyncMonitor.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_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/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.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/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-2YOKBIT61J7TSFO6HVFEVLSBR.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-AW0HAICMBX1VP2GYFT4GTZ9CD.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-CA4T53W71DAQ9R5EZYXYZG607.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-9PVRQYGOAFFHPN14CBGSK1XPD.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-D17NSF6OEJY5K9JOT5Z8H2HHQ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-9XV10CL6II1F21NO06ZKKGH15.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-9SVRO5L8L7R15CIBD19CM6OUA.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-4RVCA0LYKO9T1XBTBWDLGS7GN.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-50JLO6GUUTA2FI0H8LBS9MIWQ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-394BQN1QRDBN5GWSLTTTSMR6D.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-A1I0PYRSSQTJTY3E6TJJXTBC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-U7EKZTF9NWBYFCAJPNS2GYKF.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-6EZ9UDXXG2HYYAFDOS4H1L6QV.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/libDER-1JSZKKI3KKGZY8I7NTYFOJFPJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-D7T5KE02V961IBK18JS0XRERD.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-7S7YVWQ1P9OOE7WPX2TPI35GQ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-61NN9X8M01886WB8MVUSXDW7W.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/launch-4S09UNXFZ41TYBH6UJZKNPGXC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/MachO-39BHLMJ46NF2HTJAOZKRTRBSP.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/libkern-3ULIWPV6I5INSTT9R1S9GZCI5.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-B7QMJZSRM2WIVDHX3Q6Z1QYY1.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-9OJR5ZYWIJQD0C66L7R6SED4Y.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-8JNP5S1YSN7O7O00FP55YSUAW.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-1DT1TL50FMHAMIF9GTH2GQGG9.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-4O5HZP5QQ1GG96D54LACTT2IR.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-F4EA7VZJQUKCMZRENNSS498MA.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CFNetwork-7TFBR6NU3T3Z275H79Z086T3Y.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/IOKit-DW9X0AUH4KSO0SKSS2K5HGEG9.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-798MR2PKDI3X7E6PWPKRPZOT6.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/DiskArbitration-88PEQMORTZRKHKYL4VIDFB80O.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreServices-1KYPMWTGXDHAVJAVUVYHE9K7K.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-DKHZ2DMQU8E6F53KJKI9QP3FL.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:26:46: error: 'Failure' is only available in macOS 15.0 or newer
        sequence: any AsyncSequence<Element, Never>,
                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:24:12: note: add @available attribute to enclosing initializer
    public init<Element: Sendable>(
           ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:13:20: note: add @available attribute to enclosing class
public final class AsyncMonitor: Hashable, AsyncCancellable {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:57: error: 'Failure' is only available in macOS 15.0 or newer
public extension AsyncSequence where Element: Sendable, Failure == Never {
                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:8: note: add @available attribute to enclosing extension
public extension AsyncSequence where Element: Sendable, Failure == Never {
       ^
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AnyAsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift -target arm64-apple-macos14.0 -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.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/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AsyncMonitor -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name macosx26.0 -clang-target arm64-apple-macos26.0 -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.abi.json
SwiftCompile normal arm64 Compiling\ NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
	Building workspace spi-builder-workspace with scheme AsyncMonitor
(3 failures)
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  AsyncMonitor: /Users/admin/builder/spi-builder-workspace
resolved source packages: AsyncMonitor
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncMonitor",
  "name" : "AsyncMonitor",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "17.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncMonitor",
      "targets" : [
        "AsyncMonitor"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncMonitorTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncMonitorTests",
      "path" : "Tests/AsyncMonitorTests",
      "sources" : [
        "AnyAsyncCancellableTests.swift",
        "AsyncCancellableTests.swift",
        "AsyncMonitorTests.swift",
        "AsyncSequence+Just.swift",
        "NSObject+AsyncKVOTests.swift",
        "ReadmeExamples.swift",
        "TestCancellable.swift"
      ],
      "target_dependencies" : [
        "AsyncMonitor"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncMonitor",
      "module_type" : "SwiftTarget",
      "name" : "AsyncMonitor",
      "path" : "Sources/AsyncMonitor",
      "product_memberships" : [
        "AsyncMonitor"
      ],
      "sources" : [
        "AnyAsyncCancellable.swift",
        "AsyncCancellable.swift",
        "AsyncMonitor.swift",
        "AsyncSequence+Extensions.swift",
        "NSObject+AsyncKVO.swift",
        "ValueLocker.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "AsyncMonitor"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncMonitor -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.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 AsyncMonitor -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  AsyncMonitor: /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 'AsyncMonitor' in project 'AsyncMonitor'
        ➜ Explicit dependency on target 'AsyncMonitor' in project 'AsyncMonitor'
    Target 'AsyncMonitor' in project 'AsyncMonitor' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache
SwiftDriver AsyncMonitor normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name AsyncMonitor -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -target arm64-apple-macos14.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.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/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.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/AsyncMonitor.build/Debug/AsyncMonitor.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_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/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.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/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

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

SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AnyAsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift -target arm64-apple-macos14.0 -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx26.0-25A5279m-f7c1d129d9d5414f2afbbad1fd6fd62e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.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/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AsyncMonitor -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name macosx26.0 -clang-target arm64-apple-macos26.0 -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.abi.json
EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:26:46: error: 'Failure' is only available in macOS 15.0 or newer
        sequence: any AsyncSequence<Element, Never>,
                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:24:12: note: add @available attribute to enclosing initializer
    public init<Element: Sendable>(
           ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:13:20: note: add @available attribute to enclosing class
public final class AsyncMonitor: Hashable, AsyncCancellable {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:57: error: 'Failure' is only available in macOS 15.0 or newer
public extension AsyncSequence where Element: Sendable, Failure == Never {
                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:8: note: add @available attribute to enclosing extension
public extension AsyncSequence where Element: Sendable, Failure == Never {
       ^
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:96eb27e1265daedc9cfd443d632c7086bcd416e9, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
	EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
	Building workspace spi-builder-workspace with scheme AsyncMonitor
(3 failures)
BUILD FAILURE 6.2 macosXcodebuild