Swift Package IndexBuild Information
Failed to build AsyncMonitor, reference 0.3.1 (d622d3), with Swift 6.3 for tvOS using Xcode 26.4 on 16 Apr 2026 07:09:46 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncMonitor -destination generic/platform=tvOSBuild Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/samsonjs/AsyncMonitor.git
Reference: 0.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/samsonjs/AsyncMonitor
* tag 0.3.1 -> FETCH_HEAD
HEAD is now at d622d32 Update Readme.md
Cloned https://github.com/samsonjs/AsyncMonitor.git
Revision (git rev-parse @):
d622d32134e6f4bfa5de3f0cd3a33a98a8154b7a
SUCCESS checkout https://github.com/samsonjs/AsyncMonitor.git at 0.3.1
========================================
Build
========================================
Selected platform: tvOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/samsonjs/AsyncMonitor.git
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
AsyncMonitor: /Users/admin/builder/spi-builder-workspace
resolved source packages: AsyncMonitor
2026-04-16 03:09:29.587 xcodebuild[529:3069] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
],
"manifest_display_name" : "AsyncMonitor",
"name" : "AsyncMonitor",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "17.0"
},
{
"name" : "macos",
"version" : "14.0"
}
],
"products" : [
{
"name" : "AsyncMonitor",
"targets" : [
"AsyncMonitor"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "AsyncMonitorTests",
"module_type" : "SwiftTarget",
"name" : "AsyncMonitorTests",
"path" : "Tests/AsyncMonitorTests",
"sources" : [
"AnyAsyncCancellableTests.swift",
"AsyncCancellableTests.swift",
"AsyncMonitorTests.swift",
"AsyncSequence+Just.swift",
"NSObject+AsyncKVOTests.swift",
"ReadmeExamples.swift",
"TestCancellable.swift"
],
"target_dependencies" : [
"AsyncMonitor"
],
"type" : "test"
},
{
"c99name" : "AsyncMonitor",
"module_type" : "SwiftTarget",
"name" : "AsyncMonitor",
"path" : "Sources/AsyncMonitor",
"product_memberships" : [
"AsyncMonitor"
],
"sources" : [
"AnyAsyncCancellable.swift",
"AsyncCancellable.swift",
"AsyncMonitor.swift",
"AsyncSequence+Extensions.swift",
"NSObject+AsyncKVO.swift",
"ValueLocker.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"AsyncMonitor"
]
}
}
2026-04-16 03:09:37.380 xcodebuild[631:3866] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncMonitor -destination generic/platform=tvOS
Command line invocation:
/Applications/Xcode-26.4.0.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 AsyncMonitor -destination generic/platform=tvOS
Resolve Package Graph
Resolved source packages:
AsyncMonitor: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
Target 'AsyncMonitor' in project 'AsyncMonitor'
➜ Explicit dependency on target 'AsyncMonitor' in project 'AsyncMonitor'
Target 'AsyncMonitor' in project 'AsyncMonitor' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: c80297db3131d9a40c611e798d8eae1d
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c80297db3131d9a40c611e798d8eae1d.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/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/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/EagerLinkingTBDs/Debug-appletvos
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-appletvos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/PackageFrameworks
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.modulemap (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.DependencyMetadataFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.DependencyStaticMetadataFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.LinkFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftConstValuesFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-appletvos/AsyncMonitor.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.modulemap (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace
builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/AsyncMonitor.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-appletvos
SwiftDriver AsyncMonitor normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name AsyncMonitor -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -target arm64-apple-tvos17.0 -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-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-8P5G6DEEPG56ZYUKMYHMN3RE1.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-4BAHLZJ2RBDQMNK46XR6Y1JZS.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-6YUZKR4MV7T2QFLE4Q48OP5H2.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-1I7I9RFLZZYCUO3TPLS4U805X.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-2HYNKNS3I0KIM31LWB1MT4JSR.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-3KWPF1V25TACG1K3ZQBSH88O6.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-C8QKBRC8FEWLEQZYK4B7DE50J.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-2ERXFBA9JY7AMMKY8VA4HWPMN.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-BZO0N6E0DIXHZYNQ4S8EZ7EDL.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-BS1SXL224UKZLY0BZCZGXSPY2.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-AHTQ2Z4LJMUBWM4FTN7VFGCFE.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-C3APVXRMKC1TL26H5OI6RFWKI.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-904ZPNR3NXQN0C6LOE65GKG9O.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-14C32VGX1D4IWU8QLS276WR4F.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-6TXRXGZJ10UGF87VX48ADDYWW.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-EL0RWE9MAIYLCMLOT4GISD5SK.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-4YCIRIE2AAE9KXHT7D5IAT201.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-4DPRV7LKB1X9IM7UR1GZ26NF6.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-H6TLJP72XS2SCHLO6XNUG4J.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-71UJJ66WD6FHY7Z4384KRXYHP.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-61A3Z4HC5YGRZ4301Q8563VIJ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-AY4SBASI0IYB2DRL4P1HZYF3D.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-8J56K3TBOO6PAYWQ2YRFTOXRC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CFNetwork-D5CB4LO29N5WBJ3LLTIKRY0JG.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-99BTF6SWJRRYNWL6MZ2TBIY92.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-3LVP7PFMTBITP49EDS4BMYCFP.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:26:46: error: 'Failure' is only available in tvOS 18.0 or newer
sequence: any AsyncSequence<Element, Never>,
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:24:12: note: add '@available' attribute to enclosing initializer
public init<Element: Sendable>(
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:13:20: note: add '@available' attribute to enclosing class
public final class AsyncMonitor: Hashable, AsyncCancellable {
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:57: error: 'Failure' is only available in tvOS 18.0 or newer
public extension AsyncSequence where Element: Sendable, Failure == Never {
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:8: note: add '@available' attribute to enclosing extension
public extension AsyncSequence where Element: Sendable, Failure == Never {
^
Failed frontend command:
/Applications/Xcode-26.4.0.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/AsyncMonitor/AnyAsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift -target arm64-apple-tvos17.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.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 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AsyncMonitor -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -clang-target arm64-apple-tvos26.4 -target-sdk-version 26.4 -target-sdk-name appletvos26.4 -in-process-plugin-server-path /Applications/Xcode-26.4.0.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/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.abi.json
SwiftCompile normal arm64 Compiling\ NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ ValueLocker.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AsyncMonitor.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AnyAsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AnyAsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AnyAsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AsyncSequence+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
2026-04-16 03:09:38.799 xcodebuild[638:3925] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
Building workspace spi-builder-workspace with scheme AsyncMonitor
(3 failures)
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
AsyncMonitor: /Users/admin/builder/spi-builder-workspace
resolved source packages: AsyncMonitor
2026-04-16 03:09:43.735 xcodebuild[688:4156] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
],
"manifest_display_name" : "AsyncMonitor",
"name" : "AsyncMonitor",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "17.0"
},
{
"name" : "macos",
"version" : "14.0"
}
],
"products" : [
{
"name" : "AsyncMonitor",
"targets" : [
"AsyncMonitor"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "AsyncMonitorTests",
"module_type" : "SwiftTarget",
"name" : "AsyncMonitorTests",
"path" : "Tests/AsyncMonitorTests",
"sources" : [
"AnyAsyncCancellableTests.swift",
"AsyncCancellableTests.swift",
"AsyncMonitorTests.swift",
"AsyncSequence+Just.swift",
"NSObject+AsyncKVOTests.swift",
"ReadmeExamples.swift",
"TestCancellable.swift"
],
"target_dependencies" : [
"AsyncMonitor"
],
"type" : "test"
},
{
"c99name" : "AsyncMonitor",
"module_type" : "SwiftTarget",
"name" : "AsyncMonitor",
"path" : "Sources/AsyncMonitor",
"product_memberships" : [
"AsyncMonitor"
],
"sources" : [
"AnyAsyncCancellable.swift",
"AsyncCancellable.swift",
"AsyncMonitor.swift",
"AsyncSequence+Extensions.swift",
"NSObject+AsyncKVO.swift",
"ValueLocker.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"AsyncMonitor"
]
}
}
2026-04-16 03:09:44.910 xcodebuild[698:4255] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme AsyncMonitor -destination generic/platform=tvOS
Command line invocation:
/Applications/Xcode-26.4.0.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 AsyncMonitor -destination generic/platform=tvOS
Resolve Package Graph
Resolved source packages:
AsyncMonitor: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
Target 'AsyncMonitor' in project 'AsyncMonitor'
➜ Explicit dependency on target 'AsyncMonitor' in project 'AsyncMonitor'
Target 'AsyncMonitor' in project 'AsyncMonitor' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache
SwiftDriver AsyncMonitor normal arm64 com.apple.xcode.tools.swift.compiler (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name AsyncMonitor -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -target arm64-apple-tvos17.0 -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-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ AnyAsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AnyAsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AnyAsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AsyncSequence+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ AsyncMonitor.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ ValueLocker.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
Failed frontend command:
/Applications/Xcode-26.4.0.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/AsyncMonitor/AnyAsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncCancellable.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/ValueLocker.swift -target arm64-apple-tvos17.0 -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS26.4.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 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/appletvos26.4-23L236-688ef53f1462e2c8f657fdc38a81448fe9417fc108aa677fd4261ecaa021a5e7.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-appletvos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AsyncMonitor -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -clang-target arm64-apple-tvos26.4 -target-sdk-version 26.4 -target-sdk-name appletvos26.4 -in-process-plugin-server-path /Applications/Xcode-26.4.0.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/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/AsyncMonitor.build/Debug-appletvos/AsyncMonitor.build/Objects-normal/arm64/AsyncMonitor.abi.json
EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:26:46: error: 'Failure' is only available in tvOS 18.0 or newer
sequence: any AsyncSequence<Element, Never>,
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:24:12: note: add '@available' attribute to enclosing initializer
public init<Element: Sendable>(
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncMonitor.swift:13:20: note: add '@available' attribute to enclosing class
public final class AsyncMonitor: Hashable, AsyncCancellable {
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:57: error: 'Failure' is only available in tvOS 18.0 or newer
public extension AsyncSequence where Element: Sendable, Failure == Never {
^
/Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/AsyncSequence+Extensions.swift:2:8: note: add '@available' attribute to enclosing extension
public extension AsyncSequence where Element: Sendable, Failure == Never {
^
SwiftCompile normal arm64 Compiling\ NSObject+AsyncKVO.swift /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift (in target 'AsyncMonitor' from project 'AsyncMonitor')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
2026-04-16 03:09:45.912 xcodebuild[701:4287] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
SwiftEmitModule normal arm64 Emitting\ module\ for\ AsyncMonitor (in target 'AsyncMonitor' from project 'AsyncMonitor')
EmitSwiftModule normal arm64 (in target 'AsyncMonitor' from project 'AsyncMonitor')
Building workspace spi-builder-workspace with scheme AsyncMonitor
(3 failures)
BUILD FAILURE 6.3 tvOS