Swift Package IndexBuild Information
Failed to build Stacked, reference master (b510bc), with Swift 6.4 for macOS (Xcode) using Xcode 27.0 on 20 Sep 2026 15:23:32 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 Stacked -destination platform=macOS,arch=arm64Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ml-archive/stacked.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ml-archive/stacked
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at b510bcb Merge pull request #20 from nodes-vapor/feature/add-library
Cloned https://github.com/ml-archive/stacked.git
Revision (git rev-parse @):
b510bcbd5fb3f84f3a78540a2c508f477ec44de8
SUCCESS checkout https://github.com/ml-archive/stacked.git at master
========================================
Build
========================================
Selected platform: macosXcodebuild
Swift version: 6.4
Building package at path: $PWD
https://github.com/ml-archive/stacked.git
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/nodes-vapor/cstack.git
Creating working copy of package ‘cstack’
Checking out 1.0.1 of package ‘cstack’
ignoring declared target(s) 'CStack' in the system packageyou may be able to install cstack using your system-packager:
brew install vapor/tap/cstack
Resolve Package Graph
ignoring declared target(s) 'CStack' in the system packageyou may be able to install cstack using your system-packager:
brew install vapor/tap/cstack
Resolved source packages:
Stacked: /Users/admin/builder/spi-builder-workspace
CStack: https://github.com/nodes-vapor/cstack.git @ 1.0.1
resolved source packages: Stacked, CStack
2026-09-20 11:22:39.249 xcodebuild[529:3022] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "cstack",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/nodes-vapor/cstack.git"
}
],
"manifest_display_name" : "Stacked",
"name" : "Stacked",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "Stacked",
"targets" : [
"Stacked"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "StackedTests",
"module_type" : "SwiftTarget",
"name" : "StackedTests",
"path" : "Tests/StackedTests",
"sources" : [
"StackedTests.swift"
],
"target_dependencies" : [
"Stacked"
],
"type" : "test"
},
{
"c99name" : "Stacked",
"module_type" : "SwiftTarget",
"name" : "Stacked",
"path" : "Sources/Stacked",
"product_dependencies" : [
"CStack"
],
"product_memberships" : [
"Stacked"
],
"sources" : [
"Stacked.swift"
],
"type" : "library"
}
],
"tools_version" : "4.0"
}
{
"workspace" : {
"name" : "Stacked",
"schemes" : [
"Stacked"
]
}
}
2026-09-20 11:23:20.499 xcodebuild[683:4267] [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 Stacked -destination platform=macOS,arch=arm64
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 Stacked -destination platform=macOS,arch=arm64
Resolve Package Graph
ignoring declared target(s) 'CStack' in the system packageyou may be able to install cstack using your system-packager:
brew install vapor/tap/cstack
Resolve Package Graph
ignoring declared target(s) 'CStack' in the system packageyou may be able to install cstack using your system-packager:
brew install vapor/tap/cstack
Resolved source packages:
Stacked: /Users/admin/builder/spi-builder-workspace
CStack: https://github.com/nodes-vapor/cstack.git @ 1.0.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
Target 'Stacked-product' in project 'Stacked'
➜ Explicit dependency on target 'Stacked' in project 'Stacked'
➜ Explicit dependency on target 'CStack-product' in project 'CStack'
Target 'Stacked' in project 'Stacked'
➜ Explicit dependency on target 'CStack' in project 'CStack'
➜ Explicit dependency on target 'CStack-product' in project 'CStack'
Target 'CStack-product' in project 'CStack'
➜ Explicit dependency on target 'CStack' in project 'CStack'
Target 'CStack' in project 'CStack' (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/MacOSX.platform/Developer/SDKs/MacOSX27.0.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: 676bec4a903553cbc544da8acae6bea1
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/676bec4a903553cbc544da8acae6bea1.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/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/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/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/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.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/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/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/Products/Debug
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.DependencyMetadataFileList (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.modulemap (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.DependencyStaticMetadataFileList (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-OutputFileMap.json (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.SwiftConstValuesFileList (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked_const_extract_protocols.json (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.SwiftFileList (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.LinkFileList (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace
write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Stacked.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Stacked.modulemap (in target 'Stacked' from project 'Stacked')
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/Stacked.build/Debug/Stacked-t.build/Stacked.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver Stacked normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Stacked' from project 'Stacked')
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 Stacked -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/module.modulemap -DXcode -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/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -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 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftmodule -serialize-diagnostics -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 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-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/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftEmitModule normal arm64 Emitting\ module\ for\ Stacked (in target 'Stacked' from project 'Stacked')
SwiftCompile normal arm64 (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/shim.h:4:10: error: 'stack.h' file not found
2 | #define __CSTACK_SHIM_H__
3 |
4 | #include "stack.h"
| `- error: 'stack.h' file not found
5 |
6 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Stacked/Stacked.swift:1:8: error: could not build Objective-C module 'CStack'
1 | import CStack
| `- error: could not build Objective-C module 'CStack'
2 | import Foundation
3 |
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/Stacked/Stacked.swift -target arm64-apple-macos12.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -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 -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/module.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Stacked -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name macosx27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.abi.json
SwiftCompile normal arm64 Compiling\ Stacked.swift /Users/admin/builder/spi-builder-workspace/Sources/Stacked/Stacked.swift (in target 'Stacked' from project 'Stacked')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Stacked/Stacked.swift (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Stacked.swift
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/shim.h:4:10: error: 'stack.h' file not found
2 | #define __CSTACK_SHIM_H__
3 |
4 | #include "stack.h"
| `- error: 'stack.h' file not found
5 |
6 | #endif
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
2026-09-20 11:23:22.739 xcodebuild[691:4319] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
** BUILD FAILED **
The following build commands failed:
SwiftCompile normal arm64 (in target 'Stacked' from project 'Stacked')
SwiftEmitModule normal arm64 Emitting\ module\ for\ Stacked (in target 'Stacked' from project 'Stacked')
Building workspace Stacked with scheme Stacked
(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
ignoring declared target(s) 'CStack' in the system packageyou may be able to install cstack using your system-packager:
brew install vapor/tap/cstack
Resolved source packages:
Stacked: /Users/admin/builder/spi-builder-workspace
CStack: https://github.com/nodes-vapor/cstack.git @ 1.0.1
resolved source packages: Stacked, CStack
2026-09-20 11:23:29.081 xcodebuild[723:4560] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "cstack",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/nodes-vapor/cstack.git"
}
],
"manifest_display_name" : "Stacked",
"name" : "Stacked",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "Stacked",
"targets" : [
"Stacked"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "StackedTests",
"module_type" : "SwiftTarget",
"name" : "StackedTests",
"path" : "Tests/StackedTests",
"sources" : [
"StackedTests.swift"
],
"target_dependencies" : [
"Stacked"
],
"type" : "test"
},
{
"c99name" : "Stacked",
"module_type" : "SwiftTarget",
"name" : "Stacked",
"path" : "Sources/Stacked",
"product_dependencies" : [
"CStack"
],
"product_memberships" : [
"Stacked"
],
"sources" : [
"Stacked.swift"
],
"type" : "library"
}
],
"tools_version" : "4.0"
}
{
"workspace" : {
"name" : "Stacked",
"schemes" : [
"Stacked"
]
}
}
2026-09-20 11:23:30.367 xcodebuild[738:4636] [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 Stacked -destination platform=macOS,arch=arm64
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 Stacked -destination platform=macOS,arch=arm64
Resolve Package Graph
ignoring declared target(s) 'CStack' in the system packageyou may be able to install cstack using your system-packager:
brew install vapor/tap/cstack
Resolved source packages:
Stacked: /Users/admin/builder/spi-builder-workspace
CStack: https://github.com/nodes-vapor/cstack.git @ 1.0.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
Target 'Stacked-product' in project 'Stacked'
➜ Explicit dependency on target 'Stacked' in project 'Stacked'
➜ Explicit dependency on target 'CStack-product' in project 'CStack'
Target 'Stacked' in project 'Stacked'
➜ Explicit dependency on target 'CStack' in project 'CStack'
➜ Explicit dependency on target 'CStack-product' in project 'CStack'
Target 'CStack-product' in project 'CStack'
➜ Explicit dependency on target 'CStack' in project 'CStack'
Target 'CStack' in project 'CStack' (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/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.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/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache
SwiftDriver Stacked normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Stacked' from project 'Stacked')
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 Stacked -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/module.modulemap -DXcode -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/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -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 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftmodule -serialize-diagnostics -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 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-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/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftEmitModule normal arm64 Emitting\ module\ for\ Stacked (in target 'Stacked' from project 'Stacked')
SwiftCompile normal arm64 (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/shim.h:4:10: error: 'stack.h' file not found
2 | #define __CSTACK_SHIM_H__
3 |
4 | #include "stack.h"
| `- error: 'stack.h' file not found
5 |
6 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Stacked/Stacked.swift:1:8: error: could not build Objective-C module 'CStack'
1 | import CStack
| `- error: could not build Objective-C module 'CStack'
2 | import Foundation
3 |
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/Stacked/Stacked.swift -target arm64-apple-macos12.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -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 -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/module.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx27.0-26A425-e829b21a6f8c9b70876ba0858053c0446a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Stacked -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name macosx27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.abi.json
SwiftCompile normal arm64 Compiling\ Stacked.swift /Users/admin/builder/spi-builder-workspace/Sources/Stacked/Stacked.swift (in target 'Stacked' from project 'Stacked')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Stacked/Stacked.swift (in target 'Stacked' from project 'Stacked')
cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
builtin-SwiftPerFileCompile Stacked.swift
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "shim.h"
| `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/cstack/shim.h:4:10: error: 'stack.h' file not found
2 | #define __CSTACK_SHIM_H__
3 |
4 | #include "stack.h"
| `- error: 'stack.h' file not found
5 |
6 | #endif
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
2026-09-20 11:23:31.331 xcodebuild[746:4671] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:1a342814f54b1c6723c3891aac1e760c349a6101, name:My Mac }
** BUILD FAILED **
The following build commands failed:
SwiftCompile normal arm64 (in target 'Stacked' from project 'Stacked')
SwiftEmitModule normal arm64 Emitting\ module\ for\ Stacked (in target 'Stacked' from project 'Stacked')
Building workspace Stacked with scheme Stacked
(3 failures)
BUILD FAILURE 6.4 macosXcodebuild