ConcurrencyRecipes – Build Information

Build Information

Failed to build ConcurrencyRecipes, reference main (dd373e), with Swift 6.2 for iOS using Xcode 26.3 on 4 Sep 2026 12:27:17 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme ConcurrencyRecipes-Package -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.0.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/dimasusername/ConcurrencyRecipes.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/dimasusername/ConcurrencyRecipes
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at dd373eb Update links
Cloned https://github.com/dimasusername/ConcurrencyRecipes.git
Revision (git rev-parse @):
dd373eb786e35593fef2494e69646d6aeb133c7a
SUCCESS checkout https://github.com/dimasusername/ConcurrencyRecipes.git at main
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.2
Building package at path:  $PWD
https://github.com/dimasusername/ConcurrencyRecipes.git
Command line invocation:
    /Applications/Xcode-26.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  ConcurrencyRecipes: /Users/admin/builder/spi-builder-workspace
resolved source packages: ConcurrencyRecipes
2026-09-04 08:26:49.644 xcodebuild[538:3105] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ConcurrencyRecipes",
  "name" : "ConcurrencyRecipes",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
  ],
  "targets" : [
    {
      "c99name" : "PreconcurrencyLib",
      "module_type" : "SwiftTarget",
      "name" : "PreconcurrencyLib",
      "path" : "Sources/PreconcurrencyLib",
      "sources" : [
        "PreconcurrencyStuff.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ConcurrencyRecipesTests",
      "module_type" : "SwiftTarget",
      "name" : "ConcurrencyRecipesTests",
      "path" : "Tests/ConcurrencyRecipesTests",
      "sources" : [
        "PreconcurrencyLibTests.swift"
      ],
      "target_dependencies" : [
        "PreconcurrencyLib"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "5.10"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "ConcurrencyRecipes-Package"
    ]
  }
}
2026-09-04 08:27:08.133 xcodebuild[673:4188] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme ConcurrencyRecipes-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.3.0.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 ConcurrencyRecipes-Package -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  ConcurrencyRecipes: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'PreconcurrencyLib' in project 'ConcurrencyRecipes' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 7f65829bdfff1fb6b31bf4313e0dc721
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/7f65829bdfff1fb6b31bf4313e0dc721.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-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos
    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-iphoneos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.DependencyStaticMetadataFileList (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.DependencyMetadataFileList (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.modulemap (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib_const_extract_protocols.json (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-OutputFileMap.json (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.LinkFileList (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.SwiftConstValuesFileList (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.SwiftFileList (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.SwiftFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/PreconcurrencyLib.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.modulemap (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/PreconcurrencyLib.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos
SwiftDriver PreconcurrencyLib normal arm64 com.apple.xcode.tools.swift.compiler (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name PreconcurrencyLib -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -target arm64-apple-ios12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk/Developer/Library/Frameworks -parse-as-library -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-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/ptrauth-8VHZJ83Q6S1XV0H1THX6S1EB0.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-2EG8OVOH2HYHTAX2LL9V2TT5E.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-8FBYRV0INCYJSOXVC3KQ3YQX.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-1NRUC59RACOKVTOYZ5B716BN8.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-755XNPR6YI61IU6XC2TMX1VNR.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-1MR60AKBP470A44VGLOO8BOYV.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-65K4T7ERWFTCQUFIP8YHHTU4J.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-AG6MGCOGA8XUW2W8Q7WN7WUY0.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-BQ93ZH55WPDUFXIJ10PNQCEGB.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-17FFJR41OKCIG8DVKQDIWORSS.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-CNFBI0VBUK91E64XE0RARONDY.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-DGSPZYYYYD3DX4H9P852VLD3H.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-ENWF9WXOC5R5RU3MLKBRNFUTJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-CXQ5YD82BSZWCII5KFRTDHET3.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-3PJLVNPCMJZBV9QPKTSBU4FLT.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-5UOXVL0ICQS4G787XUVAUH2U7.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-5MQX6IWKOZK60GAL1QR3DW6GI.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-7EP7V6211A136B6IRHII46N8V.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-69SFFWUR02E4I0J2AGA7UP35B.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-6TLQ7DY2VPNOK5TA1NPEO87UI.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-APK2BRQ4TTEEDJR609RMELBEJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-3FFGPP8B35K5XRENT1SZSODUO.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-3O2ETEOBXXZ141MKTG3KMXM5G.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-8DNIGAKC79XEOB5MH2VNIVUWC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CFNetwork-1UHFSK10QJ70WG7EGGUCE4D1P.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-1EF5DGSGNU4BQETRGT6MTTOD4.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ PreconcurrencyLib (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift:32:30: error: concurrency is only available in iOS 13.0.0 or newer
        public func asyncFunction() async {
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift:32:14: note: add '@available' attribute to enclosing instance method
        public func asyncFunction() async {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift:22:14: note: add '@available' attribute to enclosing class
public class NonSendableClass {
             ^
Failed frontend command:
/Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift -target arm64-apple-ios12.0 -load-resolved-plugin /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -profile-generate -profile-coverage-mapping -swift-version 5 -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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name PreconcurrencyLib -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.2 -target-sdk-name iphoneos26.2 -clang-target arm64-apple-ios26.2 -in-process-plugin-server-path /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.abi.json
SwiftCompile normal arm64 Compiling\ PreconcurrencyStuff.swift /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

2026-09-04 08:27:09.632 xcodebuild[675:4249] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ PreconcurrencyLib (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
	Building workspace spi-builder-workspace with scheme ConcurrencyRecipes-Package
(3 failures)
Command line invocation:
    /Applications/Xcode-26.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  ConcurrencyRecipes: /Users/admin/builder/spi-builder-workspace
resolved source packages: ConcurrencyRecipes
2026-09-04 08:27:14.807 xcodebuild[719:4468] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ConcurrencyRecipes",
  "name" : "ConcurrencyRecipes",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
  ],
  "targets" : [
    {
      "c99name" : "PreconcurrencyLib",
      "module_type" : "SwiftTarget",
      "name" : "PreconcurrencyLib",
      "path" : "Sources/PreconcurrencyLib",
      "sources" : [
        "PreconcurrencyStuff.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ConcurrencyRecipesTests",
      "module_type" : "SwiftTarget",
      "name" : "ConcurrencyRecipesTests",
      "path" : "Tests/ConcurrencyRecipesTests",
      "sources" : [
        "PreconcurrencyLibTests.swift"
      ],
      "target_dependencies" : [
        "PreconcurrencyLib"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "5.10"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "ConcurrencyRecipes-Package"
    ]
  }
}
2026-09-04 08:27:15.827 xcodebuild[727:4535] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme ConcurrencyRecipes-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.3.0.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 ConcurrencyRecipes-Package -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  ConcurrencyRecipes: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'PreconcurrencyLib' in project 'ConcurrencyRecipes' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache
SwiftDriver PreconcurrencyLib normal arm64 com.apple.xcode.tools.swift.compiler (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name PreconcurrencyLib -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -target arm64-apple-ios12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk/Developer/Library/Frameworks -parse-as-library -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftEmitModule normal arm64 Emitting\ module\ for\ PreconcurrencyLib (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift:32:30: error: concurrency is only available in iOS 13.0.0 or newer
        public func asyncFunction() async {
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift:32:14: note: add '@available' attribute to enclosing instance method
        public func asyncFunction() async {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift:22:14: note: add '@available' attribute to enclosing class
public class NonSendableClass {
             ^
Failed frontend command:
/Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift -target arm64-apple-ios12.0 -load-resolved-plugin /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.2.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -profile-generate -profile-coverage-mapping -swift-version 5 -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/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.2-23C57-dc75598d0054f22ec865fa860f139d7288450c32e1b53ef065a99acc3d9992c6.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name PreconcurrencyLib -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.2 -target-sdk-name iphoneos26.2 -clang-target arm64-apple-ios26.2 -in-process-plugin-server-path /Applications/Xcode-26.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ConcurrencyRecipes.build/Debug-iphoneos/PreconcurrencyLib.build/Objects-normal/arm64/PreconcurrencyLib.abi.json
SwiftCompile normal arm64 Compiling\ PreconcurrencyStuff.swift /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

2026-09-04 08:27:16.642 xcodebuild[729:4564] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/PreconcurrencyLib/PreconcurrencyStuff.swift (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ PreconcurrencyLib (in target 'PreconcurrencyLib' from project 'ConcurrencyRecipes')
	Building workspace spi-builder-workspace with scheme ConcurrencyRecipes-Package
(3 failures)
BUILD FAILURE 6.2 iOS