Swift Package Index

Build Information

Failed to build icalendar-vcard-kit, reference 2.1.1 (bd5046), with Swift 6.2 for iOS using Xcode 26.3 on 28 Mar 2026 08:25:16 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme icalendar-vcard-kit-Package -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/thoven87/icalendar-kit.git
Reference: 2.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/thoven87/icalendar-kit
 * tag               2.1.1      -> FETCH_HEAD
HEAD is now at bd5046e Merge pull request #20 from thoven87/alarm-trigger-hotfix
Cloned https://github.com/thoven87/icalendar-kit.git
Revision (git rev-parse @):
bd5046eaeb0588c87b36bb35bf6d8b82aa563320
SUCCESS checkout https://github.com/thoven87/icalendar-kit.git at 2.1.1
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.2
Building package at path:  $PWD
https://github.com/thoven87/icalendar-kit.git
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  icalendar-vcard-kit: /Users/admin/builder/spi-builder-workspace
resolved source packages: icalendar-vcard-kit
2026-03-28 04:25:00.171 xcodebuild[517:2967] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "icalendar-vcard-kit",
  "name" : "icalendar-vcard-kit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "ICalendar",
      "targets" : [
        "ICalendar"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "VCard",
      "targets" : [
        "VCard"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "VCardTests",
      "module_type" : "SwiftTarget",
      "name" : "VCardTests",
      "path" : "Tests/VCardTests",
      "sources" : [
        "VCardFormatterTests.swift",
        "VCardSerializationTests.swift",
        "VCardTests.swift"
      ],
      "target_dependencies" : [
        "VCard"
      ],
      "type" : "test"
    },
    {
      "c99name" : "VCard",
      "module_type" : "SwiftTarget",
      "name" : "VCard",
      "path" : "Sources/VCard",
      "product_memberships" : [
        "VCard"
      ],
      "sources" : [
        "VCard.swift",
        "VCardClient.swift",
        "VCardFormatter.swift",
        "VCardFoundation.swift",
        "VCardParser.swift",
        "VCardSerializer.swift",
        "VCardUtilities.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ICalendarTests",
      "module_type" : "SwiftTarget",
      "name" : "ICalendarTests",
      "path" : "Tests/ICalendarTests",
      "sources" : [
        "AllDayEventTest.swift",
        "CalendarDescriptionTest.swift",
        "EscapingValidationTest.swift",
        "ICalendarRFC7986ExtensionsTests.swift",
        "RFC6868ParameterEncodingTests.swift",
        "RFC9073ComponentTests.swift",
        "RecurrenceIdTest.swift",
        "RecurringEventTest.swift",
        "ResultBuilderTests.swift",
        "TimeZoneIntegrationTests.swift"
      ],
      "target_dependencies" : [
        "ICalendar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ICalendar",
      "module_type" : "SwiftTarget",
      "name" : "ICalendar",
      "path" : "Sources/ICalendar",
      "product_memberships" : [
        "ICalendar"
      ],
      "sources" : [
        "Components/CalendarBuilder.swift",
        "Components/EventBuilder.swift",
        "Components/Events/ICalEvent.swift",
        "Components/ICalendar.swift",
        "Foundation/ICalendarBuilder.swift",
        "Foundation/ICalendarRecurrence.swift",
        "Foundation/ICalendarValidation.swift",
        "Foundation/ICalendarValueTypes.swift",
        "Functions/ICalendarGlobalFunctions.swift",
        "ICalAdvancediTIP.swift",
        "ICalJSCalendarConverter.swift",
        "ICalJSCalendarSupport.swift",
        "ICalNonGregorianCalendars.swift",
        "ICalParameterCodec.swift",
        "ICalendarComponents.swift",
        "ICalendarContext.swift",
        "ICalendarFormatter.swift",
        "ICalendarFoundation.swift",
        "ICalendarParser.swift",
        "ICalendarSerializer.swift",
        "ICalendarUtilities.swift",
        "Parsing/ICalDateTimeFormatting.swift",
        "TimeZoneRegistry.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "ICalendar",
      "icalendar-vcard-kit-Package",
      "VCard"
    ]
  }
}
2026-03-28 04:25:05.856 xcodebuild[630:3809] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme icalendar-vcard-kit-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme icalendar-vcard-kit-Package -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  icalendar-vcard-kit: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'VCard' in project 'icalendar-vcard-kit'
        ➜ Explicit dependency on target 'VCard' in project 'icalendar-vcard-kit'
    Target 'VCard' in project 'icalendar-vcard-kit' (no dependencies)
    Target 'ICalendar' in project 'icalendar-vcard-kit'
        ➜ Explicit dependency on target 'ICalendar' in project 'icalendar-vcard-kit'
    Target 'ICalendar' in project 'icalendar-vcard-kit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 94239bbcfeaf618a574e71475d0cb335
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/94239bbcfeaf618a574e71475d0cb335.xcbuilddata
ClangStatCache /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache
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
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/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
    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/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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.modulemap (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.DependencyMetadataFileList (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.DependencyStaticMetadataFileList (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftFileList (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-OutputFileMap.json (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftConstValuesFileList (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.LinkFileList (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard_const_extract_protocols.json (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar_const_extract_protocols.json (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.SwiftFileList (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.SwiftConstValuesFileList (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.LinkFileList (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-OutputFileMap.json (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.modulemap (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.DependencyStaticMetadataFileList (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.DependencyMetadataFileList (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.DependencyMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/VCard.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.modulemap (in target 'VCard' from project 'icalendar-vcard-kit')
    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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/VCard.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/ICalendar.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.modulemap (in target 'ICalendar' from project 'icalendar-vcard-kit')
    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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/ICalendar.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos
SwiftDriver ICalendar normal arm64 com.apple.xcode.tools.swift.compiler (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name ICalendar -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -target arm64-apple-ios12.0 -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-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar_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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver VCard normal arm64 com.apple.xcode.tools.swift.compiler (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name VCard -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -target arm64-apple-ios12.0 -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-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard_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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrcheck-EOK45JN4ZS7MNU4RCQTJRZ6RC.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_float-CYO04CIPKV8CJ3003BNF4G0ZF.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/SwiftShims-5UGK3JLFJ1IPXWRUQHDMM7Q14.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_SwiftConcurrencyShims-F2UWKDF09WE6IE9I22URWM8TH.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stddef-DAT2LC7F5B6983DSY6YBNRIUN.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdbool-EPI9VAH4W0Z24VOB1OTSFT0R0.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdarg-B97U34WC2NTXTIV9KJT2EQ3OG.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ptrauth-DU8HQ5UR75ACVN4MDM4ZSJA9X.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_AvailabilityInternal-AFDC5J5AOZH4GOZBPYKB8IE2B.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation1-BEDK7OJSTUY2BV7557VXIA4SO.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_limits-5WF403L5548IKTMWILJ366RAE.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation2-F4HYU0TSPADZV3BLLT1ZO2HGK.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/sys_types-2423ORPHCQHPFNW5V5XLR8A94.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_stdint-8PTXE5QVG1XND27G6PYUMHIYZ.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_DarwinFoundation3-6G43T91962L9P74L70QNRF8H1.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/_Builtin_inttypes-6NVCFE4GMEXK65H3H9A4MG8S2.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Darwin-4J2PUU58SGN5O8ZJBOB3LNS3U.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/ObjectiveC-104EKJNNWTZJYR2OQJY0TVZBU.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_object-BJWOGJ0D0TBEBM7ID5OXX9XU4.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/os_workgroup-5GBAXPR2HCKPAK05CDIXE6B8Z.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Dispatch-8071SC6N7FXKIZR333QLDMM1B.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/XPC-3PB5ZB87LGZIKHUD0QTXB0LJX.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CoreFoundation-BTDCCPVOMKC7F1AJFH270KOYW.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Security-5BHW8QUFFS5HODW0X7ATWVYTI.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/CFNetwork-2E47AO61LBKVWG5TRET384YU7.pcm
SwiftExplicitDependencyGeneratePcm arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Foundation-2SJD7BXDZFDKI1QBY7MM2B2R.pcm
SwiftEmitModule normal arm64 Emitting\ module\ for\ ICalendar (in target 'ICalendar' from project 'icalendar-vcard-kit')
EmitSwiftModule normal arm64 (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:234:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:226:24: note: add '@available' attribute to enclosing static method
    public static func createEvent(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:291:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:283:24: note: add '@available' attribute to enclosing static method
    public static func createRecurringEvent(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:316:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:310:24: note: add '@available' attribute to enclosing static method
    public static func createTodo(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:345:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:338:24: note: add '@available' attribute to enclosing static method
    public static func createTodo(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:463:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:458:24: note: add '@available' attribute to enclosing static method
    public static func createWeeklyRecurrence(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:482:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:475:24: note: add '@available' attribute to enclosing static method
    public static func createMonthlyRecurrence(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:521:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:515:24: note: add '@available' attribute to enclosing static method
    public static func createYearlyRecurrence(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:563:69: error: 'gmt' is only available in iOS 16 or newer
    public static func parse(_ value: String, timeZone: TimeZone = .gmt) -> ICalDateTime? {
                                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:563:24: note: add '@available' attribute to enclosing static method
    public static func parse(_ value: String, timeZone: TimeZone = .gmt) -> ICalDateTime? {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:560:13: note: add '@available' attribute to enclosing enum
public enum ICalendarDateTime {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift:76:38: error: 'gmt' is only available in iOS 16 or newer
        defaultTimeZone: TimeZone = .gmt,
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift:74:12: note: add '@available' attribute to enclosing initializer
    public init(
           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift:44:15: note: add '@available' attribute to enclosing struct
public struct ICalendarContext: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:65:79: error: 'gmt' is only available in iOS 16 or newer
    package static func parseDateTime(_ value: String, timeZone: TimeZone? = .gmt) -> ICalDateTime? {
                                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:65:25: note: add '@available' attribute to enclosing static method
    package static func parseDateTime(_ value: String, timeZone: TimeZone? = .gmt) -> ICalDateTime? {
                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:4:16: note: add '@available' attribute to enclosing struct
package struct ICalendarFormatter {
               ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:641:78: error: 'gmt' is only available in iOS 16 or newer
    package static func parseDateList(_ value: String, timeZone: TimeZone = .gmt) -> [ICalDateTime] {
                                                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:641:25: note: add '@available' attribute to enclosing static method
    package static func parseDateList(_ value: String, timeZone: TimeZone = .gmt) -> [ICalDateTime] {
                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:4:16: note: add '@available' attribute to enclosing struct
package struct ICalendarFormatter {
               ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:7:54: error: 'gmt' is only available in iOS 16 or newer
    public func asICalDateTime(timeZone: TimeZone = .gmt, isDateOnly: Bool = false) -> ICalDateTime {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:7:17: note: add '@available' attribute to enclosing instance method
    public func asICalDateTime(timeZone: TimeZone = .gmt, isDateOnly: Bool = false) -> ICalDateTime {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:5:1: note: add '@available' attribute to enclosing extension
extension Date {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:12:54: error: 'gmt' is only available in iOS 16 or newer
    public func asICalDateOnly(timeZone: TimeZone = .gmt) -> ICalDateTime {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:12:17: note: add '@available' attribute to enclosing instance method
    public func asICalDateOnly(timeZone: TimeZone = .gmt) -> ICalDateTime {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:5:1: note: add '@available' attribute to enclosing extension
extension Date {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:168:76: error: 'gmt' is only available in iOS 16 or newer
    public init(summary: String, uid: String? = nil, timeZone: TimeZone = .gmt) {
                                                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:168:12: note: add '@available' attribute to enclosing initializer
    public init(summary: String, uid: String? = nil, timeZone: TimeZone = .gmt) {
           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:165:15: note: add '@available' attribute to enclosing struct
public struct ICalTodoBuilder: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:179:63: error: 'gmt' is only available in iOS 16 or newer
    public func startDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:179:17: note: add '@available' attribute to enclosing instance method
    public func startDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:165:15: note: add '@available' attribute to enclosing struct
public struct ICalTodoBuilder: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:185:61: error: 'gmt' is only available in iOS 16 or newer
    public func dueDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:185:17: note: add '@available' attribute to enclosing instance method
    public func dueDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:165:15: note: add '@available' attribute to enclosing struct
public struct ICalTodoBuilder: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:9:30: error: 'Mutex' is only available in iOS 18.0 or newer
    private let cacheMutex = Mutex<[String: ICalTimeZone]>([String: ICalTimeZone]())
                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:6:20: note: add '@available' attribute to enclosing class
public final class TimeZoneRegistry: Sendable {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:9:58: error: 'init(_:)' is only available in iOS 18.0 or newer
    private let cacheMutex = Mutex<[String: ICalTimeZone]>([String: ICalTimeZone]())
                                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:6:20: note: add '@available' attribute to enclosing class
public final class TimeZoneRegistry: Sendable {
                   ^
Failed frontend command:
/Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/CalendarBuilder.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/EventBuilder.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/Events/ICalEvent.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/ICalendar.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarBuilder.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarRecurrence.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValidation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValueTypes.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalAdvancediTIP.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarConverter.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarSupport.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalNonGregorianCalendars.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalParameterCodec.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Parsing/ICalDateTimeFormatting.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift -target arm64-apple-ios12.0 -load-resolved-plugin /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.0.0.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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/swift-overrides.hmap -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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ICalendar -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name iphoneos26.0 -clang-target arm64-apple-ios26.0 -in-process-plugin-server-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.abi.json
SwiftCompile normal arm64 Compiling\ ICalendarContext.swift,\ ICalendarFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalDateTimeFormatting.swift,\ TimeZoneRegistry.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Parsing/ICalDateTimeFormatting.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Parsing/ICalDateTimeFormatting.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalParameterCodec.swift,\ ICalendarComponents.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalParameterCodec.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalParameterCodec.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalendarValidation.swift,\ ICalendarValueTypes.swift,\ ICalendarGlobalFunctions.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValidation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValueTypes.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValidation.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValueTypes.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalendarFoundation.swift,\ ICalendarParser.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFoundation.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ VCard (in target 'VCard' from project 'icalendar-vcard-kit')
EmitSwiftModule normal arm64 (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalJSCalendarSupport.swift,\ ICalNonGregorianCalendars.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarSupport.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalNonGregorianCalendars.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarSupport.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalNonGregorianCalendars.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFormatter.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFormatter.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardParser.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardClient.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftDriverJobDiscovery normal arm64 Emitting module for VCard (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftDriver\ Compilation\ Requirements VCard normal arm64 com.apple.xcode.tools.swift.compiler (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name VCard -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -target arm64-apple-ios12.0 -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-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard_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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
2026-03-28 04:25:07.655 xcodebuild[632:3847] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	EmitSwiftModule normal arm64 (in target 'ICalendar' from project 'icalendar-vcard-kit')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ ICalendar (in target 'ICalendar' from project 'icalendar-vcard-kit')
	Building workspace spi-builder-workspace with scheme icalendar-vcard-kit-Package
(3 failures)
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  icalendar-vcard-kit: /Users/admin/builder/spi-builder-workspace
resolved source packages: icalendar-vcard-kit
2026-03-28 04:25:12.952 xcodebuild[685:4139] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "icalendar-vcard-kit",
  "name" : "icalendar-vcard-kit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "ICalendar",
      "targets" : [
        "ICalendar"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "VCard",
      "targets" : [
        "VCard"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "VCardTests",
      "module_type" : "SwiftTarget",
      "name" : "VCardTests",
      "path" : "Tests/VCardTests",
      "sources" : [
        "VCardFormatterTests.swift",
        "VCardSerializationTests.swift",
        "VCardTests.swift"
      ],
      "target_dependencies" : [
        "VCard"
      ],
      "type" : "test"
    },
    {
      "c99name" : "VCard",
      "module_type" : "SwiftTarget",
      "name" : "VCard",
      "path" : "Sources/VCard",
      "product_memberships" : [
        "VCard"
      ],
      "sources" : [
        "VCard.swift",
        "VCardClient.swift",
        "VCardFormatter.swift",
        "VCardFoundation.swift",
        "VCardParser.swift",
        "VCardSerializer.swift",
        "VCardUtilities.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ICalendarTests",
      "module_type" : "SwiftTarget",
      "name" : "ICalendarTests",
      "path" : "Tests/ICalendarTests",
      "sources" : [
        "AllDayEventTest.swift",
        "CalendarDescriptionTest.swift",
        "EscapingValidationTest.swift",
        "ICalendarRFC7986ExtensionsTests.swift",
        "RFC6868ParameterEncodingTests.swift",
        "RFC9073ComponentTests.swift",
        "RecurrenceIdTest.swift",
        "RecurringEventTest.swift",
        "ResultBuilderTests.swift",
        "TimeZoneIntegrationTests.swift"
      ],
      "target_dependencies" : [
        "ICalendar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ICalendar",
      "module_type" : "SwiftTarget",
      "name" : "ICalendar",
      "path" : "Sources/ICalendar",
      "product_memberships" : [
        "ICalendar"
      ],
      "sources" : [
        "Components/CalendarBuilder.swift",
        "Components/EventBuilder.swift",
        "Components/Events/ICalEvent.swift",
        "Components/ICalendar.swift",
        "Foundation/ICalendarBuilder.swift",
        "Foundation/ICalendarRecurrence.swift",
        "Foundation/ICalendarValidation.swift",
        "Foundation/ICalendarValueTypes.swift",
        "Functions/ICalendarGlobalFunctions.swift",
        "ICalAdvancediTIP.swift",
        "ICalJSCalendarConverter.swift",
        "ICalJSCalendarSupport.swift",
        "ICalNonGregorianCalendars.swift",
        "ICalParameterCodec.swift",
        "ICalendarComponents.swift",
        "ICalendarContext.swift",
        "ICalendarFormatter.swift",
        "ICalendarFoundation.swift",
        "ICalendarParser.swift",
        "ICalendarSerializer.swift",
        "ICalendarUtilities.swift",
        "Parsing/ICalDateTimeFormatting.swift",
        "TimeZoneRegistry.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "ICalendar",
      "icalendar-vcard-kit-Package",
      "VCard"
    ]
  }
}
2026-03-28 04:25:14.407 xcodebuild[693:4205] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme icalendar-vcard-kit-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme icalendar-vcard-kit-Package -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  icalendar-vcard-kit: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'VCard' in project 'icalendar-vcard-kit'
        ➜ Explicit dependency on target 'VCard' in project 'icalendar-vcard-kit'
    Target 'VCard' in project 'icalendar-vcard-kit' (no dependencies)
    Target 'ICalendar' in project 'icalendar-vcard-kit'
        ➜ Explicit dependency on target 'ICalendar' in project 'icalendar-vcard-kit'
    Target 'ICalendar' in project 'icalendar-vcard-kit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache
SwiftDriver VCard normal arm64 com.apple.xcode.tools.swift.compiler (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name VCard -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -target arm64-apple-ios12.0 -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-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard_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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.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/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver ICalendar normal arm64 com.apple.xcode.tools.swift.compiler (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name ICalendar -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -target arm64-apple-ios12.0 -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-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar_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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ VCard.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCard.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCard.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFormatter.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFormatter.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFoundation.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFoundation.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardSerializer.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardParser.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardUtilities.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ VCard (in target 'VCard' from project 'icalendar-vcard-kit')
EmitSwiftModule normal arm64 (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ VCardClient.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift (in target 'VCard' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ ICalendar (in target 'ICalendar' from project 'icalendar-vcard-kit')
Failed frontend command:
/Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/CalendarBuilder.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/EventBuilder.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/Events/ICalEvent.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Components/ICalendar.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarBuilder.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarRecurrence.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValidation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Foundation/ICalendarValueTypes.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalAdvancediTIP.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarConverter.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarSupport.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalNonGregorianCalendars.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalParameterCodec.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Parsing/ICalDateTimeFormatting.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift -target arm64-apple-ios12.0 -load-resolved-plugin /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.0.0.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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-3885c01c3e6b6a337905948deab2002e031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/swift-overrides.hmap -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/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ICalendar -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name iphoneos26.0 -clang-target arm64-apple-ios26.0 -in-process-plugin-server-path /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar-primary-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/ICalendar.build/Objects-normal/arm64/ICalendar.abi.json
EmitSwiftModule normal arm64 (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:234:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:226:24: note: add '@available' attribute to enclosing static method
    public static func createEvent(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:291:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:283:24: note: add '@available' attribute to enclosing static method
    public static func createRecurringEvent(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:316:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:310:24: note: add '@available' attribute to enclosing static method
    public static func createTodo(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:345:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:338:24: note: add '@available' attribute to enclosing static method
    public static func createTodo(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:463:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:458:24: note: add '@available' attribute to enclosing static method
    public static func createWeeklyRecurrence(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:482:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:475:24: note: add '@available' attribute to enclosing static method
    public static func createMonthlyRecurrence(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:521:31: error: 'gmt' is only available in iOS 16 or newer
        timeZone: TimeZone = .gmt
                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:515:24: note: add '@available' attribute to enclosing static method
    public static func createYearlyRecurrence(
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:221:13: note: add '@available' attribute to enclosing enum
public enum ICalendarFactory {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:563:69: error: 'gmt' is only available in iOS 16 or newer
    public static func parse(_ value: String, timeZone: TimeZone = .gmt) -> ICalDateTime? {
                                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:563:24: note: add '@available' attribute to enclosing static method
    public static func parse(_ value: String, timeZone: TimeZone = .gmt) -> ICalDateTime? {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/Functions/ICalendarGlobalFunctions.swift:560:13: note: add '@available' attribute to enclosing enum
public enum ICalendarDateTime {
            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift:76:38: error: 'gmt' is only available in iOS 16 or newer
        defaultTimeZone: TimeZone = .gmt,
                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift:74:12: note: add '@available' attribute to enclosing initializer
    public init(
           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarContext.swift:44:15: note: add '@available' attribute to enclosing struct
public struct ICalendarContext: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:65:79: error: 'gmt' is only available in iOS 16 or newer
    package static func parseDateTime(_ value: String, timeZone: TimeZone? = .gmt) -> ICalDateTime? {
                                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:65:25: note: add '@available' attribute to enclosing static method
    package static func parseDateTime(_ value: String, timeZone: TimeZone? = .gmt) -> ICalDateTime? {
                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:4:16: note: add '@available' attribute to enclosing struct
package struct ICalendarFormatter {
               ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:641:78: error: 'gmt' is only available in iOS 16 or newer
    package static func parseDateList(_ value: String, timeZone: TimeZone = .gmt) -> [ICalDateTime] {
                                                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:641:25: note: add '@available' attribute to enclosing static method
    package static func parseDateList(_ value: String, timeZone: TimeZone = .gmt) -> [ICalDateTime] {
                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift:4:16: note: add '@available' attribute to enclosing struct
package struct ICalendarFormatter {
               ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:7:54: error: 'gmt' is only available in iOS 16 or newer
    public func asICalDateTime(timeZone: TimeZone = .gmt, isDateOnly: Bool = false) -> ICalDateTime {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:7:17: note: add '@available' attribute to enclosing instance method
    public func asICalDateTime(timeZone: TimeZone = .gmt, isDateOnly: Bool = false) -> ICalDateTime {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:5:1: note: add '@available' attribute to enclosing extension
extension Date {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:12:54: error: 'gmt' is only available in iOS 16 or newer
    public func asICalDateOnly(timeZone: TimeZone = .gmt) -> ICalDateTime {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:12:17: note: add '@available' attribute to enclosing instance method
    public func asICalDateOnly(timeZone: TimeZone = .gmt) -> ICalDateTime {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:5:1: note: add '@available' attribute to enclosing extension
extension Date {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:168:76: error: 'gmt' is only available in iOS 16 or newer
    public init(summary: String, uid: String? = nil, timeZone: TimeZone = .gmt) {
                                                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:168:12: note: add '@available' attribute to enclosing initializer
    public init(summary: String, uid: String? = nil, timeZone: TimeZone = .gmt) {
           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:165:15: note: add '@available' attribute to enclosing struct
public struct ICalTodoBuilder: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:179:63: error: 'gmt' is only available in iOS 16 or newer
    public func startDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:179:17: note: add '@available' attribute to enclosing instance method
    public func startDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:165:15: note: add '@available' attribute to enclosing struct
public struct ICalTodoBuilder: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:185:61: error: 'gmt' is only available in iOS 16 or newer
    public func dueDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:185:17: note: add '@available' attribute to enclosing instance method
    public func dueDate(_ date: Date, timeZone: TimeZone = .gmt) -> ICalTodoBuilder {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift:165:15: note: add '@available' attribute to enclosing struct
public struct ICalTodoBuilder: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:9:30: error: 'Mutex' is only available in iOS 18.0 or newer
    private let cacheMutex = Mutex<[String: ICalTimeZone]>([String: ICalTimeZone]())
                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:6:20: note: add '@available' attribute to enclosing class
public final class TimeZoneRegistry: Sendable {
                   ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:9:58: error: 'init(_:)' is only available in iOS 18.0 or newer
    private let cacheMutex = Mutex<[String: ICalTimeZone]>([String: ICalTimeZone]())
                                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/TimeZoneRegistry.swift:6:20: note: add '@available' attribute to enclosing class
public final class TimeZoneRegistry: Sendable {
                   ^
SwiftCompile normal arm64 Compiling\ ICalJSCalendarSupport.swift,\ ICalNonGregorianCalendars.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarSupport.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalNonGregorianCalendars.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalJSCalendarSupport.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalNonGregorianCalendars.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalParameterCodec.swift,\ ICalendarComponents.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalParameterCodec.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalParameterCodec.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftDriverJobDiscovery normal arm64 Emitting module for VCard (in target 'VCard' from project 'icalendar-vcard-kit')
2026-03-28 04:25:15.278 xcodebuild[695:4236] [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\ ICalendar (in target 'ICalendar' from project 'icalendar-vcard-kit')
	EmitSwiftModule normal arm64 (in target 'ICalendar' from project 'icalendar-vcard-kit')
	Building workspace spi-builder-workspace with scheme icalendar-vcard-kit-Package
(3 failures)
BUILD FAILURE 6.2 iOS