Swift Package Index

Build Information

Failed to build Stacked, reference 0.3.1 (b510bc), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 15:22:44 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ml-archive/stacked.git
Reference: 0.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ml-archive/stacked
 * tag               0.3.1      -> FETCH_HEAD
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 0.3.1
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/ml-archive/stacked.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 68]
[Planning deferred tasks]
[19 / 28]
Fetching https://github.com/nodes-vapor/cstack.git
[1/16] Fetching cstack
Fetched https://github.com/nodes-vapor/cstack.git (0.88s)
Computing version for https://github.com/nodes-vapor/cstack.git
Computed https://github.com/nodes-vapor/cstack.git at 1.0.1 (1.55s)
Creating working copy for https://github.com/nodes-vapor/cstack.git
Working copy of https://github.com/nodes-vapor/cstack.git resolved at 1.0.1
warning: 'cstack': ignoring declared target(s) 'CStack' in the system package
warning: 'cstack': ignoring declared target(s) 'CStack' in the system package
warning: 'cstack': failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: 'cstack': you may be able to install cstack using your system-packager:
    brew install vapor/tap/cstack
error: SwiftCompile normal arm64 failed with a nonzero exit code. Command line:     cd /Users/admin/builder

<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/.build/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/.build/out/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/.build/out/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/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -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/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/checkouts/cstack/module.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/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/.build/out/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/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/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/.build/out/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/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Stacked.build/Debug/Stacked-t.build/Objects-normal/arm64/Stacked.abi.json
error: Build failed
BUILD FAILURE 6.4 macosSpm