Swift Package IndexBuild Information
Failed to build AsyncLifetime, reference 1.2.0 (717a57), with Swift 6.4 for iOS using Xcode 27.0 on 23 Sep 2026 05:10:48 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncLifetime -destination generic/platform=iOSBuild Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nonameplum/AsyncLifetime.git
Reference: 1.2.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/nonameplum/AsyncLifetime
* tag 1.2.0 -> FETCH_HEAD
HEAD is now at 717a579 Release 1.2.0
Cloned https://github.com/nonameplum/AsyncLifetime.git
Revision (git rev-parse @):
717a579f98c2092db51a911847503be427144cf8
SUCCESS checkout https://github.com/nonameplum/AsyncLifetime.git at 1.2.0
========================================
Build
========================================
Selected platform: iOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/nonameplum/AsyncLifetime.git
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/apple/swift-async-algorithms
Fetching from https://github.com/apple/swift-collections.git
Creating working copy of package ‘swift-collections’
Checking out 1.7.0 of package ‘swift-collections’
Creating working copy of package ‘swift-async-algorithms’
Checking out 1.1.5 of package ‘swift-async-algorithms’
Resolve Package Graph
Resolved source packages:
swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.5
swift-collections: https://github.com/apple/swift-collections.git @ 1.7.0
AsyncLifetime: /Users/admin/builder/spi-builder-workspace
resolved source packages: swift-async-algorithms, swift-collections, AsyncLifetime
2026-09-23 01:10:03.643 xcodebuild[563:3061] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-async-algorithms",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-async-algorithms"
}
],
"manifest_display_name" : "AsyncLifetime",
"name" : "AsyncLifetime",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "17.0"
},
{
"name" : "macos",
"version" : "14.0"
},
{
"name" : "watchos",
"version" : "10.0"
},
{
"name" : "tvos",
"version" : "17.0"
},
{
"name" : "visionos",
"version" : "1.0"
}
],
"products" : [
{
"name" : "AsyncLifetime",
"targets" : [
"AsyncLifetime"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "AsyncLifetimeTests",
"module_type" : "SwiftTarget",
"name" : "AsyncLifetimeTests",
"path" : "Tests/AsyncLifetimeTests",
"product_dependencies" : [
"AsyncAlgorithms"
],
"sources" : [
"AsyncLifetimeLoopholeTests.swift",
"AsyncSequenceAssignTests.swift",
"LifetimeCancellableTests.swift",
"Utilities/TestGlobalActor.swift",
"Utilities/TestUtilities.swift",
"WithLifetimeNonThrowingTests.swift",
"WithLifetimeTests.swift",
"WithMainActorLifetimeTests.swift"
],
"target_dependencies" : [
"AsyncLifetime"
],
"type" : "test"
},
{
"c99name" : "AsyncLifetime",
"module_type" : "SwiftTarget",
"name" : "AsyncLifetime",
"path" : "Sources/AsyncLifetime",
"product_memberships" : [
"AsyncLifetime"
],
"sources" : [
"AnyLifetimeCancellable.swift",
"AsyncSequence+assign.swift",
"_withLifetimeTask.swift",
"withLifetime.swift",
"withMainActorLifetime.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "AsyncLifetime",
"schemes" : [
"AsyncLifetime"
]
}
}
2026-09-23 01:10:36.058 xcodebuild[757:4399] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncLifetime -destination generic/platform=iOS
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.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 AsyncLifetime -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
swift-collections: https://github.com/apple/swift-collections.git @ 1.7.0
swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.5
AsyncLifetime: /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 'AsyncLifetime-product' in project 'AsyncLifetime'
➜ Explicit dependency on target 'AsyncLifetime' in project 'AsyncLifetime'
Target 'AsyncLifetime' in project 'AsyncLifetime' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: ac1d884dc9437a51d8ce4370821d9f2a
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ac1d884dc9437a51d8ce4370821d9f2a.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/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/PrecompiledHeaders
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.DependencyStaticMetadataFileList (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.DependencyMetadataFileList (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.modulemap (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftConstValuesFileList (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftFileList (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_const_extract_protocols.json (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.LinkFileList (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-OutputFileMap.json (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-OutputFileMap.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/AsyncLifetime.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.modulemap (in target 'AsyncLifetime' from project 'AsyncLifetime')
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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/AsyncLifetime.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos
SwiftDriver AsyncLifetime normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name AsyncLifetime -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -enable-upcoming-feature InferSendableFromCaptures -enable-upcoming-feature IsolatedDefaultValues -enable-upcoming-feature RegionBasedIsolation -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -target arm64-apple-ios17.0 -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 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-OutputFileMap.json -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/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
warning: Upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode (in target 'AsyncLifetime' from project 'AsyncLifetime')
warning: Upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode (in target 'AsyncLifetime' from project 'AsyncLifetime')
warning: Upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/SwiftShims-2T1JKJY1CNAX17AUPWM2I7WV9.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_float-C9YPEHM4CFZRZANG7FZUAXNEM.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/ptrcheck-7IAJ7MPM56KRQ7DVR098RZHZ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/ptrauth-AW885YIGD3C9FM93EVUVX6RSX.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_stdarg-68742DYUXT1W2MV2M7VLNH88N.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_SwiftConcurrencyShims-1YQ444MGGYMS6A2AOV77GJGQW.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_stdbool-8O3N4J6YVKHLL0V45IVQS8NH2.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_stddef-497PWUKWYPOGQHRSPKM0T1465.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_AvailabilityInternal-3RI5Y5TKNUVCSZS0AWA4QTVBL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_DarwinFoundation1-CM7XFNS1BWR7TJ77APPPZNEYV.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_DarwinFoundation2-B59V6W3XU16CLURAS03HJS6YW.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_limits-DZCNUPSJE8VFID4WNCB288197.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/string_h-1Q2U6QG8BMVR0IC2U25873FPM.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_stdint-6SFA8FHKKN84TABC4YGTRQP9K.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/sys_types-362M33UJYX5FN4RCNSGM7NM1D.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_DarwinFoundation3-DYY938WDNPDWGPOGH1M1QUITA.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_stdatomic-1KLSPMZHFV28VLY03WH70TKRQ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_Builtin_inttypes-65FJ2B2J1AEG8S0QD4ORVM8AF.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/Darwin-7BRJ35O6AB5WG6M0QJKB4XRFG.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/ObjectiveC-2XPQ6U9PP7GEYPPG4LGBZBUCL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/MachO-9F4BG5KR6TOP88211XYW7B1FV.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/os_object-CN4Y7T89Q3YQ2MKXLFROZXLDT.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/os_workgroup-5UBI4P9YBOBEVSY2WVPGNJBP0.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/Dispatch-BO6SVQF0IH8VODEHY7FQBERTL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/CoreFoundation-3BXWUG13YYK3VV3PI7VYJJI74.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/XPC-8RGSM7SGRDPX6RCK48IA80D7H.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/os-46UXIJFHVWSAV5L5JXKGWDZIQ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/Security-8HI917VU3DURPJQDVV46744EJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/CFNetwork-6ICAZ6DACHUVURN640VOBA1EC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/Foundation-ECOO1J2N4MYJUH0P49Q2U9DM8.pcm
SwiftCompile normal arm64 Compiling\ _withLifetimeTask.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:53:7: warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
51 | }
52 | } else {
53 | for try await element in stream {
| `- warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
54 | guard !Task.isCancelled,
55 | let object
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:206:9: warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
204 | }
205 | } else {
206 | for try await element in stream {
| `- warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
207 | guard !Task.isCancelled,
208 | let object
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:203:21: error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
201 | }
202 |
203 | try await operation(object, element)
| |- error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
| `- note: sending 'isolation'-isolated 'object' to @concurrent callee risks causing data races between @concurrent and 'isolation'-isolated uses
204 | }
205 | } else {
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:215:21: error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
213 | }
214 |
215 | try await operation(object, element)
| |- error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
| `- note: sending 'isolation'-isolated 'object' to @concurrent callee risks causing data races between @concurrent and 'isolation'-isolated uses
216 | }
217 | }
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:302:15: error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
300 | }
301 |
302 | await operation(object, element)
| |- error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
| `- note: sending 'isolation'-isolated 'object' to @concurrent callee risks causing data races between @concurrent and 'isolation'-isolated uses
303 | }
304 | }
[#IsolatedConformances]: <https://docs.swift.org/compiler/documentation/diagnostics/isolated-conformances>
[#RegionIsolation]: <https://docs.swift.org/compiler/documentation/diagnostics/region-isolation>
[#SendingRisksDataRace]: <https://docs.swift.org/compiler/documentation/diagnostics/sending-risks-data-race>
Failed frontend command:
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile _withLifetimeTask.swift
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AnyLifetimeCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AsyncSequence+assign.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withLifetime.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withMainActorLifetime.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.dia -target arm64-apple-ios17.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-upcoming-feature InferSendableFromCaptures -enable-upcoming-feature IsolatedDefaultValues -enable-upcoming-feature RegionBasedIsolation -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/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AsyncLifetime -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-ios27.0 -target-sdk-version 27.0 -target-sdk-name iphoneos27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule -index-unit-output-path /AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 Compiling\ AsyncSequence+assign.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AsyncSequence+assign.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AsyncSequence+assign.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AsyncSequence+assign.swift
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncLifetime (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ withMainActorLifetime.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withMainActorLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withMainActorLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile withMainActorLifetime.swift
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 Compiling\ AnyLifetimeCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AnyLifetimeCancellable.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AnyLifetimeCancellable.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AnyLifetimeCancellable.swift
SwiftCompile normal arm64 Compiling\ withLifetime.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile withLifetime.swift
SwiftDriverJobDiscovery normal arm64 Emitting module for AsyncLifetime (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftDriver\ Compilation\ Requirements AsyncLifetime normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-Swift-Compilation-Requirements -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name AsyncLifetime -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -enable-upcoming-feature InferSendableFromCaptures -enable-upcoming-feature IsolatedDefaultValues -enable-upcoming-feature RegionBasedIsolation -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -target arm64-apple-ios17.0 -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 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-OutputFileMap.json -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/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftMergeGeneratedHeaders /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/AsyncLifetime-Swift.h /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-Swift.h (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
builtin-swiftHeaderTool -arch arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-Swift.h -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/AsyncLifetime-Swift.h
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/arm64-apple-ios.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/arm64-apple-ios.swiftmodule
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/arm64-apple-ios.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftdoc (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/arm64-apple-ios.swiftdoc
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/arm64-apple-ios.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.abi.json (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/arm64-apple-ios.abi.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/Project/arm64-apple-ios.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftsourceinfo (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace
builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/AsyncLifetime.swiftmodule/Project/arm64-apple-ios.swiftsourceinfo
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-23 01:10:39.291 xcodebuild[758:4443] [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/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 Compiling\ _withLifetimeTask.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
Building workspace AsyncLifetime with scheme AsyncLifetime
(3 failures)
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.5
swift-collections: https://github.com/apple/swift-collections.git @ 1.7.0
AsyncLifetime: /Users/admin/builder/spi-builder-workspace
resolved source packages: swift-async-algorithms, swift-collections, AsyncLifetime
2026-09-23 01:10:44.830 xcodebuild[825:4775] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-async-algorithms",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-async-algorithms"
}
],
"manifest_display_name" : "AsyncLifetime",
"name" : "AsyncLifetime",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "17.0"
},
{
"name" : "macos",
"version" : "14.0"
},
{
"name" : "watchos",
"version" : "10.0"
},
{
"name" : "tvos",
"version" : "17.0"
},
{
"name" : "visionos",
"version" : "1.0"
}
],
"products" : [
{
"name" : "AsyncLifetime",
"targets" : [
"AsyncLifetime"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "AsyncLifetimeTests",
"module_type" : "SwiftTarget",
"name" : "AsyncLifetimeTests",
"path" : "Tests/AsyncLifetimeTests",
"product_dependencies" : [
"AsyncAlgorithms"
],
"sources" : [
"AsyncLifetimeLoopholeTests.swift",
"AsyncSequenceAssignTests.swift",
"LifetimeCancellableTests.swift",
"Utilities/TestGlobalActor.swift",
"Utilities/TestUtilities.swift",
"WithLifetimeNonThrowingTests.swift",
"WithLifetimeTests.swift",
"WithMainActorLifetimeTests.swift"
],
"target_dependencies" : [
"AsyncLifetime"
],
"type" : "test"
},
{
"c99name" : "AsyncLifetime",
"module_type" : "SwiftTarget",
"name" : "AsyncLifetime",
"path" : "Sources/AsyncLifetime",
"product_memberships" : [
"AsyncLifetime"
],
"sources" : [
"AnyLifetimeCancellable.swift",
"AsyncSequence+assign.swift",
"_withLifetimeTask.swift",
"withLifetime.swift",
"withMainActorLifetime.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "AsyncLifetime",
"schemes" : [
"AsyncLifetime"
]
}
}
2026-09-23 01:10:46.319 xcodebuild[833:4842] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncLifetime -destination generic/platform=iOS
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.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 AsyncLifetime -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
swift-collections: https://github.com/apple/swift-collections.git @ 1.7.0
AsyncLifetime: /Users/admin/builder/spi-builder-workspace
swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.5
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
Target 'AsyncLifetime-product' in project 'AsyncLifetime'
➜ Explicit dependency on target 'AsyncLifetime' in project 'AsyncLifetime'
Target 'AsyncLifetime' in project 'AsyncLifetime' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
SwiftDriver AsyncLifetime normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name AsyncLifetime -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -enable-upcoming-feature InferSendableFromCaptures -enable-upcoming-feature IsolatedDefaultValues -enable-upcoming-feature RegionBasedIsolation -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -target arm64-apple-ios17.0 -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 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-OutputFileMap.json -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/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
warning: Upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode (in target 'AsyncLifetime' from project 'AsyncLifetime')
warning: Upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode (in target 'AsyncLifetime' from project 'AsyncLifetime')
warning: Upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 Compiling\ AnyLifetimeCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AnyLifetimeCancellable.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AnyLifetimeCancellable.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AnyLifetimeCancellable.swift
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 Compiling\ _withLifetimeTask.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:53:7: warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
51 | }
52 | } else {
53 | for try await element in stream {
| `- warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
54 | guard !Task.isCancelled,
55 | let object
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:206:9: warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
204 | }
205 | } else {
206 | for try await element in stream {
| `- warning: conformance of 'AsyncIterator' to protocol 'AsyncIteratorProtocol' may be isolated and cannot be passed to @concurrent context [#IsolatedConformances]
207 | guard !Task.isCancelled,
208 | let object
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:203:21: error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
201 | }
202 |
203 | try await operation(object, element)
| |- error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
| `- note: sending 'isolation'-isolated 'object' to @concurrent callee risks causing data races between @concurrent and 'isolation'-isolated uses
204 | }
205 | } else {
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:215:21: error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
213 | }
214 |
215 | try await operation(object, element)
| |- error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
| `- note: sending 'isolation'-isolated 'object' to @concurrent callee risks causing data races between @concurrent and 'isolation'-isolated uses
216 | }
217 | }
/Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift:302:15: error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
300 | }
301 |
302 | await operation(object, element)
| |- error: sending 'object' risks causing data races [#RegionIsolation::SendingRisksDataRace]
| `- note: sending 'isolation'-isolated 'object' to @concurrent callee risks causing data races between @concurrent and 'isolation'-isolated uses
303 | }
304 | }
[#IsolatedConformances]: <https://docs.swift.org/compiler/documentation/diagnostics/isolated-conformances>
[#RegionIsolation]: <https://docs.swift.org/compiler/documentation/diagnostics/region-isolation>
[#SendingRisksDataRace]: <https://docs.swift.org/compiler/documentation/diagnostics/sending-risks-data-race>
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AnyLifetimeCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AsyncSequence+assign.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withLifetime.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withMainActorLifetime.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.dia -target arm64-apple-ios17.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-upcoming-feature InferSendableFromCaptures -enable-upcoming-feature IsolatedDefaultValues -enable-upcoming-feature RegionBasedIsolation -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/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -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/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AsyncLifetime -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-ios27.0 -target-sdk-version 27.0 -target-sdk-name iphoneos27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/AsyncLifetime.swiftmodule -index-unit-output-path /AsyncLifetime.build/Debug-iphoneos/AsyncLifetime-t.build/Objects-normal/arm64/_withLifetimeTask.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile _withLifetimeTask.swift
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncLifetime (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ withLifetime.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile withLifetime.swift
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 Compiling\ AsyncSequence+assign.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AsyncSequence+assign.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/AsyncSequence+assign.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AsyncSequence+assign.swift
SwiftCompile normal arm64 Compiling\ withMainActorLifetime.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withMainActorLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
<unknown>:0: warning: upcoming feature 'RegionBasedIsolation' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'IsolatedDefaultValues' already enabled as of the Swift 6 language mode
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' already enabled as of the Swift 6 language mode
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/withMainActorLifetime.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile withMainActorLifetime.swift
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-23 01:10:47.539 xcodebuild[834:4867] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
SwiftCompile normal arm64 Compiling\ _withLifetimeTask.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncLifetime/_withLifetimeTask.swift (in target 'AsyncLifetime' from project 'AsyncLifetime')
Building workspace AsyncLifetime with scheme AsyncLifetime
(3 failures)
BUILD FAILURE 6.4 iOS