KeychainKit – Build Information – Swift Package Index

Build Information

Failed to build KeychainKit, reference 1.1.0 (0dcb6d), with Swift 6.4 for macOS (SPM) on 24 Sep 2026 13:41:13 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ErsanQ/KeychainKit.git
Reference: 1.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ErsanQ/KeychainKit
 * tag               1.1.0      -> FETCH_HEAD
HEAD is now at 0dcb6d4 feat: add KeychainKey type-safe keys + withLock thread-safe mutation
Cloned https://github.com/ErsanQ/KeychainKit.git
Revision (git rev-parse @):
0dcb6d4781bf4a0b322e346f58c5db24d0c2330f
SUCCESS checkout https://github.com/ErsanQ/KeychainKit.git at 1.1.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/ErsanQ/KeychainKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
[19 / 28]
[20 / 29] KeychainKit
[30 / 70]
[35 / 70]
[38 / 70]
[39 / 70]
[43 / 70]
[45 / 70]
[48 / 70]
[51 / 70]
[53 / 70]
[54 / 70]
[61 / 70] KeychainKit
[67 / 70] KeychainKit
/Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainAccessibility.swift:46:51: [1;33mwarning: [1;39m'kSecAttrAccessibleAlways' was deprecated in macOS 10.14: Use an accessibility level that provides some user protection, such as kSecAttrAccessibleAfterFirstUnlock[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m44 |[0;0m         case .whenUnlocked:                return kSecAttrAccessibleWhenUnlocked
[0;36m45 |[0;0m         case .afterFirstUnlock:            return kSecAttrAccessibleAfterFirstUnlock
[0;36m46 |[0;0m         case .always:                      return kSecAttrAccessibleAlways
   [0;36m|[0;0m                                                   `- [1;33mwarning: [1;39m'kSecAttrAccessibleAlways' was deprecated in macOS 10.14: Use an accessibility level that provides some user protection, such as kSecAttrAccessibleAfterFirstUnlock[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m47 |[0;0m         case .whenUnlockedThisDeviceOnly:  return kSecAttrAccessibleWhenUnlockedThisDeviceOnly
[0;36m48 |[0;0m         case .afterFirstUnlockThisDeviceOnly: return kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainItem.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile KeychainItem.swift
/Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainItem.swift:53:18: [1;31merror: [1;39mcannot convert value of type '[String]' to specified type 'String'[0;0m
 [0;36m51 |[0;0m             lock.lock(); defer { lock.unlock() }
 [0;36m52 |[0;0m             return try? store.read(forKey: key.rawValue)
 [0;36m53 |[0;0m                 .flatMap { String(data: $0, encoding: .utf8) }
    [0;36m|[0;0m                  `- [1;31merror: [1;39mcannot convert value of type '[String]' to specified type 'String'[0;0m
 [0;36m54 |[0;0m         }
 [0;36m55 |[0;0m         nonmutating set {
/Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainItem.swift:53:41: [1;31merror: [1;39mcannot convert value of type 'Data.Element' (aka 'UInt8') to expected argument type 'Data'[0;0m
 [0;36m51 |[0;0m             lock.lock(); defer { lock.unlock() }
 [0;36m52 |[0;0m             return try? store.read(forKey: key.rawValue)
 [0;36m53 |[0;0m                 .flatMap { String(data: $0, encoding: .utf8) }
    [0;36m|[0;0m                                         `- [1;31merror: [1;39mcannot convert value of type 'Data.Element' (aka 'UInt8') to expected argument type 'Data'[0;0m
 [0;36m54 |[0;0m         }
 [0;36m55 |[0;0m         nonmutating set {
/Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainItem.swift:76:14: [1;31merror: [1;39mcannot convert value of type '[String]' to specified type 'String'[0;0m
 [0;36m74 |[0;0m     fileprivate func _read() -> String? {
 [0;36m75 |[0;0m         try? store.read(forKey: key.rawValue)
 [0;36m76 |[0;0m             .flatMap { String(data: $0, encoding: .utf8) }
    [0;36m|[0;0m              `- [1;31merror: [1;39mcannot convert value of type '[String]' to specified type 'String'[0;0m
 [0;36m77 |[0;0m     }
 [0;36m78 |[0;0m
/Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainItem.swift:76:37: [1;31merror: [1;39mcannot convert value of type 'Data.Element' (aka 'UInt8') to expected argument type 'Data'[0;0m
 [0;36m74 |[0;0m     fileprivate func _read() -> String? {
 [0;36m75 |[0;0m         try? store.read(forKey: key.rawValue)
 [0;36m76 |[0;0m             .flatMap { String(data: $0, encoding: .utf8) }
    [0;36m|[0;0m                                     `- [1;31merror: [1;39mcannot convert value of type 'Data.Element' (aka 'UInt8') to expected argument type 'Data'[0;0m
 [0;36m77 |[0;0m     }
 [0;36m78 |[0;0m
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/Keychain.swift /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainAccessibility.swift /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainError.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainItem.swift /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainKey.swift /Users/admin/builder/spi-builder-workspace/Sources/KeychainKit/KeychainStore.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainItem.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainItem.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainItem.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainItem.dia -target arm64-apple-macos13.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.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/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainKit-dependencies-1.json -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/Intermediates.noindex/SwiftExplicitPrecompiledModules -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature StrictConcurrency -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -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 -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/KeychainKit.build/Debug/KeychainKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name KeychainKit -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainKit_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainItem.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainKit.swiftmodule -index-unit-output-path /KeychainKit.build/Debug/KeychainKit-t.build/Objects-normal/arm64/KeychainItem.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm