Swift Package IndexBuild Information
Failed to build SwiftUtils, reference main (87ad56), with Swift 6.4 for iOS using Xcode 27.0 on 22 Sep 2026 19:58:11 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 SwiftUtils -destination generic/platform=iOSBuild Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Genaro-Chris/SwiftUtils.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Genaro-Chris/SwiftUtils
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 87ad560 some fixes and docs
Cloned https://github.com/Genaro-Chris/SwiftUtils.git
Revision (git rev-parse @):
87ad56079e41b81bf26c9f935f30e17cb8cf8331
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Genaro-Chris/SwiftUtils.git at main
========================================
Build
========================================
Selected platform: iOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/Genaro-Chris/SwiftUtils.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
Resolve Package Graph
Resolved source packages:
SwiftUtils: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftUtils
2026-09-22 15:57:31.773 xcodebuild[529:3018] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
],
"manifest_display_name" : "SwiftUtils",
"name" : "SwiftUtils",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "15.0"
}
],
"products" : [
{
"name" : "Utilities",
"targets" : [
"Utilities"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "Utilities",
"module_type" : "SwiftTarget",
"name" : "Utilities",
"path" : "Sources",
"product_memberships" : [
"Utilities"
],
"sources" : [
"SwiftUtils/AsyncFunction.swift",
"SwiftUtils/AsyncThrowingFunction.swift",
"SwiftUtils/Function.swift",
"SwiftUtils/MaybeUninit.swift",
"SwiftUtils/SwiftUtils.swift",
"SwiftUtils/ThrowingFunction.swift",
"SwiftUtils/Tuple.swift",
"SwiftUtils/Utils.swift",
"SwiftUtils/Variant+Error.swift",
"SwiftUtils/Variant.swift"
],
"type" : "library"
},
{
"c99name" : "SwiftUtilsTests",
"module_type" : "SwiftTarget",
"name" : "SwiftUtilsTests",
"path" : "Tests/SwiftUtilsTests",
"sources" : [
"Declarations.swift",
"FunctionTests.swift",
"MaybeUninitTests.swift",
"SwiftUtilsTests.swift",
"TupleTests.swift",
"VariantTests.swift"
],
"target_dependencies" : [
"Utilities"
],
"type" : "test"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "SwiftUtils",
"schemes" : [
"SwiftUtils"
]
}
}
2026-09-22 15:58:04.135 xcodebuild[626:3834] [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 SwiftUtils -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 SwiftUtils -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
SwiftUtils: /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 'Utilities-product' in project 'SwiftUtils'
➜ Explicit dependency on target 'Utilities' in project 'SwiftUtils'
Target 'Utilities' in project 'SwiftUtils' (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
Build description signature: 78f94e2f976cdb62ffe0a33bb4f76f72
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/78f94e2f976cdb62ffe0a33bb4f76f72.xcbuilddata
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/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/CompilationCache.noindex
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
ClangStatCache /Applications/Xcode-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/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/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/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/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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.modulemap (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.DependencyMetadataFileList (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.DependencyStaticMetadataFileList (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities_const_extract_protocols.json (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-OutputFileMap.json (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.SwiftFileList (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.LinkFileList (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.SwiftConstValuesFileList (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.SwiftConstValuesFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/Utilities.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.modulemap (in target 'Utilities' from project 'SwiftUtils')
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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Utilities.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos
SwiftDriver Utilities normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Utilities' from project 'SwiftUtils')
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 Utilities -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -enable-experimental-feature BuiltinModule -enable-experimental-feature RawLayout -enable-experimental-feature NoncopyableGenerics -enable-experimental-feature NoncopyableGenerics2 -enable-experimental-feature BitwiseCopyable -enable-experimental-feature BitwiseCopyable2 -enable-experimental-feature BuiltinAddressOfRawLayout -enable-experimental-feature BuiltinStoreRaw -enable-builtin-module -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-ios15.0 -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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities_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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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/SDKExplicitPrecompiledModules/SwiftShims-2T1JKJY1CNAX17AUPWM2I7WV9.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules/_SwiftConcurrencyShims-1YQ444MGGYMS6A2AOV77GJGQW.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ Utilities (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncFunction.swift:5:29: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
3 | /// This construct provide a nominal interface to the swift's async closure type
4 | @frozen
5 | public struct AsyncFunction<each Input, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
6 |
7 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift:7:41: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
5 | /// This construct provide a nominal interface to the swift's async throwing closure type
6 | @frozen
7 | public struct AsyncThrowingFunction<each Input, Error: Swift.Error, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
8 |
9 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift:5:24: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
3 | /// This construct provide a nominal interface to the swift's closure type
4 | @frozen
5 | public struct Function<each Input, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
6 |
7 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift:6:36: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
4 | /// This construct provide a nominal interface to the swift's throwing closure type
5 | @frozen
6 | public struct ThrowingFunction<each Input, Error: Swift.Error, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
7 |
8 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift:19:21: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
17 | @dynamicMemberLookup
18 | @frozen
19 | public struct Tuple<each Value> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
20 |
21 | /// the tuple
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift:12:23: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
10 | /// value of any type from the list of types
11 | @frozen
12 | public struct Variant<each Item>: ~Copyable {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
13 |
14 | @_alwaysEmitIntoClient
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.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/SwiftUtils/AsyncFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/MaybeUninit.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/SwiftUtils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Utils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant+Error.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift -target arm64-apple-ios15.0 -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/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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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-experimental-feature BuiltinModule -enable-experimental-feature RawLayout -enable-experimental-feature NoncopyableGenerics -enable-experimental-feature NoncopyableGenerics2 -enable-experimental-feature BitwiseCopyable -enable-experimental-feature BitwiseCopyable2 -enable-experimental-feature BuiltinAddressOfRawLayout -enable-experimental-feature BuiltinStoreRaw -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 -enable-builtin-module -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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Utilities -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities_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 -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.abi.json
SwiftCompile normal arm64 Compiling\ Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Tuple.swift
SwiftCompile normal arm64 Compiling\ Variant.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Variant.swift
SwiftCompile normal arm64 Compiling\ Variant+Error.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant+Error.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant+Error.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Variant+Error.swift
SwiftCompile normal arm64 Compiling\ Utils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Utils.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Utils.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Utils.swift
SwiftCompile normal arm64 Compiling\ SwiftUtils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/SwiftUtils.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/SwiftUtils.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile SwiftUtils.swift
SwiftCompile normal arm64 Compiling\ MaybeUninit.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/MaybeUninit.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/MaybeUninit.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile MaybeUninit.swift
SwiftCompile normal arm64 Compiling\ Function.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Function.swift
SwiftCompile normal arm64 Compiling\ AsyncFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncFunction.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncFunction.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AsyncFunction.swift
SwiftCompile normal arm64 Compiling\ ThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile ThrowingFunction.swift
SwiftCompile normal arm64 Compiling\ AsyncThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AsyncThrowingFunction.swift
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-22 15:58:05.763 xcodebuild[627:3881] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
SwiftCompile normal arm64 (in target 'Utilities' from project 'SwiftUtils')
SwiftEmitModule normal arm64 Emitting\ module\ for\ Utilities (in target 'Utilities' from project 'SwiftUtils')
Building workspace SwiftUtils with scheme SwiftUtils
(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:
SwiftUtils: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftUtils
2026-09-22 15:58:08.770 xcodebuild[669:4125] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
],
"manifest_display_name" : "SwiftUtils",
"name" : "SwiftUtils",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "15.0"
}
],
"products" : [
{
"name" : "Utilities",
"targets" : [
"Utilities"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "Utilities",
"module_type" : "SwiftTarget",
"name" : "Utilities",
"path" : "Sources",
"product_memberships" : [
"Utilities"
],
"sources" : [
"SwiftUtils/AsyncFunction.swift",
"SwiftUtils/AsyncThrowingFunction.swift",
"SwiftUtils/Function.swift",
"SwiftUtils/MaybeUninit.swift",
"SwiftUtils/SwiftUtils.swift",
"SwiftUtils/ThrowingFunction.swift",
"SwiftUtils/Tuple.swift",
"SwiftUtils/Utils.swift",
"SwiftUtils/Variant+Error.swift",
"SwiftUtils/Variant.swift"
],
"type" : "library"
},
{
"c99name" : "SwiftUtilsTests",
"module_type" : "SwiftTarget",
"name" : "SwiftUtilsTests",
"path" : "Tests/SwiftUtilsTests",
"sources" : [
"Declarations.swift",
"FunctionTests.swift",
"MaybeUninitTests.swift",
"SwiftUtilsTests.swift",
"TupleTests.swift",
"VariantTests.swift"
],
"target_dependencies" : [
"Utilities"
],
"type" : "test"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "SwiftUtils",
"schemes" : [
"SwiftUtils"
]
}
}
2026-09-22 15:58:10.014 xcodebuild[683:4278] [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 SwiftUtils -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 SwiftUtils -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
SwiftUtils: /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 'Utilities-product' in project 'SwiftUtils'
➜ Explicit dependency on target 'Utilities' in project 'SwiftUtils'
Target 'Utilities' in project 'SwiftUtils' (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 Utilities normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Utilities' from project 'SwiftUtils')
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 Utilities -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -enable-experimental-feature BuiltinModule -enable-experimental-feature RawLayout -enable-experimental-feature NoncopyableGenerics -enable-experimental-feature NoncopyableGenerics2 -enable-experimental-feature BitwiseCopyable -enable-experimental-feature BitwiseCopyable2 -enable-experimental-feature BuiltinAddressOfRawLayout -enable-experimental-feature BuiltinStoreRaw -enable-builtin-module -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-ios15.0 -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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities_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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ AsyncFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncFunction.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncFunction.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AsyncFunction.swift
SwiftCompile normal arm64 Compiling\ ThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile ThrowingFunction.swift
SwiftCompile normal arm64 Compiling\ Function.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Function.swift
SwiftCompile normal arm64 Compiling\ AsyncThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile AsyncThrowingFunction.swift
SwiftCompile normal arm64 Compiling\ SwiftUtils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/SwiftUtils.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/SwiftUtils.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile SwiftUtils.swift
SwiftCompile normal arm64 Compiling\ MaybeUninit.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/MaybeUninit.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/MaybeUninit.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile MaybeUninit.swift
SwiftCompile normal arm64 Compiling\ Utils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Utils.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Utils.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Utils.swift
SwiftCompile normal arm64 Compiling\ Variant.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Variant.swift
SwiftCompile normal arm64 Compiling\ Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Tuple.swift
SwiftEmitModule normal arm64 Emitting\ module\ for\ Utilities (in target 'Utilities' from project 'SwiftUtils')
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncFunction.swift:5:29: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
3 | /// This construct provide a nominal interface to the swift's async closure type
4 | @frozen
5 | public struct AsyncFunction<each Input, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
6 |
7 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift:7:41: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
5 | /// This construct provide a nominal interface to the swift's async throwing closure type
6 | @frozen
7 | public struct AsyncThrowingFunction<each Input, Error: Swift.Error, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
8 |
9 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift:5:24: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
3 | /// This construct provide a nominal interface to the swift's closure type
4 | @frozen
5 | public struct Function<each Input, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
6 |
7 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift:6:36: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
4 | /// This construct provide a nominal interface to the swift's throwing closure type
5 | @frozen
6 | public struct ThrowingFunction<each Input, Error: Swift.Error, Output> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
7 |
8 | @_alwaysEmitIntoClient
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift:19:21: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
17 | @dynamicMemberLookup
18 | @frozen
19 | public struct Tuple<each Value> {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
20 |
21 | /// the tuple
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift:12:23: error: parameter packs in generic types are only available in iOS 17.0.0 or newer
10 | /// value of any type from the list of types
11 | @frozen
12 | public struct Variant<each Item>: ~Copyable {
| | `- error: parameter packs in generic types are only available in iOS 17.0.0 or newer
| `- note: add '@available' attribute to enclosing generic struct
13 |
14 | @_alwaysEmitIntoClient
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.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/SwiftUtils/AsyncFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/AsyncThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Function.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/MaybeUninit.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/SwiftUtils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/ThrowingFunction.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Tuple.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Utils.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant+Error.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant.swift -target arm64-apple-ios15.0 -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/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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-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-experimental-feature BuiltinModule -enable-experimental-feature RawLayout -enable-experimental-feature NoncopyableGenerics -enable-experimental-feature NoncopyableGenerics2 -enable-experimental-feature BitwiseCopyable -enable-experimental-feature BitwiseCopyable2 -enable-experimental-feature BuiltinAddressOfRawLayout -enable-experimental-feature BuiltinStoreRaw -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 -enable-builtin-module -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/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Utilities -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities_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 -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftUtils.build/Debug-iphoneos/Utilities-t.build/Objects-normal/arm64/Utilities.abi.json
SwiftCompile normal arm64 (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
SwiftCompile normal arm64 Compiling\ Variant+Error.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant+Error.swift (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftUtils/Variant+Error.swift (in target 'Utilities' from project 'SwiftUtils')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Variant+Error.swift
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-22 15:58:10.972 xcodebuild[684:4304] [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\ Utilities (in target 'Utilities' from project 'SwiftUtils')
SwiftCompile normal arm64 (in target 'Utilities' from project 'SwiftUtils')
Building workspace SwiftUtils with scheme SwiftUtils
(3 failures)
BUILD FAILURE 6.4 iOS