icalendar-vcard-kit – Build Information

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Build Information

Failed to build icalendar-vcard-kit, reference main (7226d5), with Swift 6.1 for iOS using Xcode 16.3 on 6 Jun 2025 01:58:36 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.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: 4.63.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/thoven87/icalendar-kit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/thoven87/icalendar-kit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7226d5a Merge pull request #2 from thoven87/thoven87-patch-1
Cloned https://github.com/thoven87/icalendar-kit.git
Revision (git rev-parse @):
7226d5a69e491107fc17b0b939b01e54d1387830
SUCCESS checkout https://github.com/thoven87/icalendar-kit.git at main
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/thoven87/icalendar-kit.git
https://github.com/thoven87/icalendar-kit.git
{
  "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" : [
        "ICalendarEventManagementTests.swift",
        "ICalendarTests.swift"
      ],
      "target_dependencies" : [
        "ICalendar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ICalendar",
      "module_type" : "SwiftTarget",
      "name" : "ICalendar",
      "path" : "Sources/ICalendar",
      "product_memberships" : [
        "ICalendar"
      ],
      "sources" : [
        "ICalendar.swift",
        "ICalendarComponents.swift",
        "ICalendarFormatter.swift",
        "ICalendarFoundation.swift",
        "ICalendarParser.swift",
        "ICalendarSerializer.swift",
        "ICalendarUtilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
Command line invocation:
    /Applications/Xcode-16.3.0.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
{
  "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" : [
        "ICalendarEventManagementTests.swift",
        "ICalendarTests.swift"
      ],
      "target_dependencies" : [
        "ICalendar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ICalendar",
      "module_type" : "SwiftTarget",
      "name" : "ICalendar",
      "path" : "Sources/ICalendar",
      "product_memberships" : [
        "ICalendar"
      ],
      "sources" : [
        "ICalendar.swift",
        "ICalendarComponents.swift",
        "ICalendarFormatter.swift",
        "ICalendarFoundation.swift",
        "ICalendarParser.swift",
        "ICalendarSerializer.swift",
        "ICalendarUtilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "ICalendar",
      "icalendar-vcard-kit-Package",
      "VCard"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme icalendar-vcard-kit-Package -destination generic/platform=iOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Command line invocation:
    /Applications/Xcode-16.3.0.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 "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
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-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: b860746c264bced34f1ce645c4af3d9d
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/b860746c264bced34f1ce645c4af3d9d.xcbuilddata
ClangStatCache /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.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/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.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/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/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-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_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/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.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/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
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
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/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 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-16.3.0.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 -stats-output-dir .stats -strict-concurrency\=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.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 -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.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 -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-16.3.0.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 -stats-output-dir .stats -strict-concurrency\=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.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 -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.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 -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\ ICalendarComponents.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/ICalendarComponents.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
SwiftCompile normal arm64 Compiling\ ICalendarFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFormatter.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
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\ ICalendarParser.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
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

SwiftCompile normal arm64 Compiling\ ICalendar.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ ICalendarFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarFoundation.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
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

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

<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
SwiftCompile normal arm64 Compiling\ ICalendarUtilities.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarUtilities.swift (in target 'ICalendar' 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

<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
SwiftEmitModule normal arm64 Emitting\ module\ for\ VCard (in target 'VCard' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
Failed frontend command:
/Applications/Xcode-16.3.0.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/VCard/VCard.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift -target arm64-apple-ios12.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -no-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -stats-output-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode/.stats -Onone -D SWIFT_PACKAGE -D DEBUG -serialize-debugging-options -const-gather-protocols-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 -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -enable-experimental-feature DebugDescriptionMacro -strict-concurrency\=complete -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.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/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 -module-name VCard -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 18.4 -target-sdk-name iphoneos18.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftsourceinfo -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 -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.abi.json
EmitSwiftModule normal arm64 (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:49:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCard(from content: String) async throws -> VCard {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:49:17: note: add @available attribute to enclosing instance method
    public func parseVCard(from content: String) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:60:45: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCard(from data: Data) async throws -> VCard {
                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:60:17: note: add @available attribute to enclosing instance method
    public func parseVCard(from data: Data) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:73:43: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCard(from url: URL) async throws -> VCard {
                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:73:17: note: add @available attribute to enclosing instance method
    public func parseVCard(from url: URL) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:86:51: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCards(from content: String) async throws -> [VCard] {
                                                  ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:86:17: note: add @available attribute to enclosing instance method
    public func parseVCards(from content: String) async throws -> [VCard] {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:102:48: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCard(_ vcard: VCard) async throws -> String {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:102:17: note: add @available attribute to enclosing instance method
    public func serializeVCard(_ vcard: VCard) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:113:48: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCard(_ vcard: VCard) async throws -> Data {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:113:17: note: add @available attribute to enclosing instance method
    public func serializeVCard(_ vcard: VCard) async throws -> Data {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:124:61: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCard(_ vcard: VCard, to url: URL) async throws {
                                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:124:17: note: add @available attribute to enclosing instance method
    public func serializeVCard(_ vcard: VCard, to url: URL) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:135:52: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCards(_ vcards: [VCard]) async throws -> String {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:135:17: note: add @available attribute to enclosing instance method
    public func serializeVCards(_ vcards: [VCard]) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:380:47: error: concurrency is only available in iOS 13.0.0 or newer
    public func validateVCard(_ vcard: VCard) async throws {
                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:380:17: note: add @available attribute to enclosing instance method
    public func validateVCard(_ vcard: VCard) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:386:52: error: concurrency is only available in iOS 13.0.0 or newer
    public func getVCardStatistics(_ vcard: VCard) async -> VCardStatistics {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:386:17: note: add @available attribute to enclosing instance method
    public func getVCardStatistics(_ vcard: VCard) async -> VCardStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:527:7: error: concurrency is only available in iOS 13.0.0 or newer
    ) async throws -> String {
      ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:524:17: note: add @available attribute to enclosing instance method
    public func exportVCards(
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:570:49: error: concurrency is only available in iOS 13.0.0 or newer
    public static func parse(_ content: String) async throws -> VCard {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:570:24: note: add @available attribute to enclosing static method
    public static func parse(_ content: String) async throws -> VCard {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:567:1: note: add @available attribute to enclosing extension
extension VCardClient {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:576:50: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serialize(_ vcard: VCard) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:576:24: note: add @available attribute to enclosing static method
    public static func serialize(_ vcard: VCard) async throws -> String {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:567:1: note: add @available attribute to enclosing extension
extension VCardClient {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: error: concurrency is only available in iOS 13.0.0 or newer
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:16:42: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ content: String) async throws -> VCard {
                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:16:17: note: add @available attribute to enclosing instance method
    public func parse(_ content: String) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:22:37: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ data: Data) async throws -> VCard {
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:22:17: note: add @available attribute to enclosing instance method
    public func parse(_ data: Data) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:30:40: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseFile(at url: URL) async throws -> VCard {
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:30:17: note: add @available attribute to enclosing instance method
    public func parseFile(at url: URL) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:49:48: error: concurrency is only available in iOS 13.0.0 or newer
    private func parseLines(_ lines: [String]) async throws -> VCard {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:49:18: note: add @available attribute to enclosing instance method
    private func parseLines(_ lines: [String]) async throws -> VCard {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:105:42: error: concurrency is only available in iOS 13.0.0 or newer
    public func validate(_ vcard: VCard) async throws {
                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:105:17: note: add @available attribute to enclosing instance method
    public func validate(_ vcard: VCard) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:119:53: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateProperties(_ vcard: VCard) async throws {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:119:18: note: add @available attribute to enclosing instance method
    private func validateProperties(_ vcard: VCard) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:204:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseMultiple(_ content: String) async throws -> [VCard] {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:204:17: note: add @available attribute to enclosing instance method
    public func parseMultiple(_ content: String) async throws -> [VCard] {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:241:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseAndValidate(_ content: String) async throws -> VCard {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:241:17: note: add @available attribute to enclosing instance method
    public func parseAndValidate(_ content: String) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:248:100: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ content: String, customValidation: @Sendable (VCard) async throws -> Void) async throws -> VCard {
                                                                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:248:17: note: add @available attribute to enclosing instance method
    public func parse(_ content: String, customValidation: @Sendable (VCard) async throws -> Void) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:282:47: error: concurrency is only available in iOS 13.0.0 or newer
    public func getStatistics(_ vcard: VCard) async -> VCardStatistics {
                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:282:17: note: add @available attribute to enclosing instance method
    public func getStatistics(_ vcard: VCard) async -> VCardStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: error: concurrency is only available in iOS 13.0.0 or newer
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:47:43: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcard: VCard) async throws -> String {
                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:47:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcard: VCard) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:57:49: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeToData(_ vcard: VCard) async throws -> Data {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:57:17: note: add @available attribute to enclosing instance method
    public func serializeToData(_ vcard: VCard) async throws -> Data {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:66:59: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeToFile(_ vcard: VCard, url: URL) async throws {
                                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:66:17: note: add @available attribute to enclosing instance method
    public func serializeToFile(_ vcard: VCard, url: URL) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:72:46: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcards: [VCard]) async throws -> String {
                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:72:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcards: [VCard]) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:85:49: error: concurrency is only available in iOS 13.0.0 or newer
    private func serializeVCard(_ vcard: VCard) async -> String {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:85:18: note: add @available attribute to enclosing instance method
    private func serializeVCard(_ vcard: VCard) async -> String {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:157:66: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcard: VCard, version: VCardVersion) async throws -> String {
                                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:157:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcard: VCard, version: VCardVersion) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:171:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeMinimal(_ vcard: VCard) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:171:17: note: add @available attribute to enclosing instance method
    public func serializeMinimal(_ vcard: VCard) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:185:51: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForApple(_ vcard: VCard) async -> String {
                                                  ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:185:17: note: add @available attribute to enclosing instance method
    public func serializeForApple(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:251:52: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForGoogle(_ vcard: VCard) async -> String {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:251:17: note: add @available attribute to enclosing instance method
    public func serializeForGoogle(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:284:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForOutlook(_ vcard: VCard) async -> String {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:284:17: note: add @available attribute to enclosing instance method
    public func serializeForOutlook(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:324:49: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializePretty(_ vcard: VCard) async -> String {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:324:17: note: add @available attribute to enclosing instance method
    public func serializePretty(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:345:47: error: concurrency is only available in iOS 13.0.0 or newer
    public func getStatistics(_ vcard: VCard) async -> SerializationStatistics {
                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:345:17: note: add @available attribute to enclosing instance method
    public func getStatistics(_ vcard: VCard) async -> SerializationStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:394:50: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serialize(_ vcard: VCard) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:394:24: note: add @available attribute to enclosing static method
    public static func serialize(_ vcard: VCard) async throws -> String {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:391:1: note: add @available attribute to enclosing extension
extension VCardSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:400:56: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serializeToData(_ vcard: VCard) async throws -> Data {
                                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:400:24: note: add @available attribute to enclosing static method
    public static func serializeToData(_ vcard: VCard) async throws -> Data {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:391:1: note: add @available attribute to enclosing extension
extension VCardSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:406:63: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcard: VCard, lineEnding: String) async throws -> String {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:406:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcard: VCard, lineEnding: String) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:391:1: note: add @available attribute to enclosing extension
extension VCardSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:544:64: error: concurrency is only available in iOS 13.0.0 or newer
    public static func extractVCardsFromDirectory(at url: URL) async throws -> [VCard] {
                                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:544:24: note: add @available attribute to enclosing static method
    public static func extractVCardsFromDirectory(at url: URL) async throws -> [VCard] {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:542:15: note: add @available attribute to enclosing struct
public struct VCardIOUtilities {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:566:79: error: concurrency is only available in iOS 13.0.0 or newer
    public static func exportVCardsToFiles(_ vcards: [VCard], directory: URL) async throws {
                                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:566:24: note: add @available attribute to enclosing static method
    public static func exportVCardsToFiles(_ vcards: [VCard], directory: URL) async throws {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:542:15: note: add @available attribute to enclosing struct
public struct VCardIOUtilities {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:582:69: error: concurrency is only available in iOS 13.0.0 or newer
    public static func backupVCards(_ vcards: [VCard], to url: URL) async throws {
                                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:582:24: note: add @available attribute to enclosing static method
    public static func backupVCards(_ vcards: [VCard], to url: URL) async throws {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:542:15: note: add @available attribute to enclosing struct
public struct VCardIOUtilities {
              ^
SwiftCompile normal arm64 Compiling\ VCard.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCard.swift (in target 'VCard' from project 'icalendar-vcard-kit')
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
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\ VCardUtilities.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift (in target 'VCard' from project 'icalendar-vcard-kit')
Command SwiftCompile failed with a nonzero exit code
** BUILD FAILED **
The following build commands failed:
	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')
	SwiftCompile normal arm64 Compiling\ VCardUtilities.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift (in target 'VCard' from project 'icalendar-vcard-kit')
	Building workspace spi-builder-workspace with scheme icalendar-vcard-kit-Package
(4 failures)
Command line invocation:
    /Applications/Xcode-16.3.0.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
{
  "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" : [
        "ICalendarEventManagementTests.swift",
        "ICalendarTests.swift"
      ],
      "target_dependencies" : [
        "ICalendar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ICalendar",
      "module_type" : "SwiftTarget",
      "name" : "ICalendar",
      "path" : "Sources/ICalendar",
      "product_memberships" : [
        "ICalendar"
      ],
      "sources" : [
        "ICalendar.swift",
        "ICalendarComponents.swift",
        "ICalendarFormatter.swift",
        "ICalendarFoundation.swift",
        "ICalendarParser.swift",
        "ICalendarSerializer.swift",
        "ICalendarUtilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "ICalendar",
      "icalendar-vcard-kit-Package",
      "VCard"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.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-16.3.0.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
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: ae73649ff2e62b3a1d573c8ef39cddb2
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ae73649ff2e62b3a1d573c8ef39cddb2.xcbuilddata
ClangStatCache /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.sdkstatcache
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-16.3.0.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 -DXcode -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.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 -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.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 -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-16.3.0.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 -DXcode -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.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 -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.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 -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
SwiftCompile normal arm64 Compiling\ ICalendar.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift (in target 'ICalendar' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

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

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

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

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

SwiftEmitModule normal arm64 Emitting\ module\ for\ VCard (in target 'VCard' from project 'icalendar-vcard-kit')
Failed frontend command:
/Applications/Xcode-16.3.0.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/VCard/VCard.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFormatter.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardFoundation.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift -target arm64-apple-ios12.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -no-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -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/VCard.build/Objects-normal/arm64/VCard_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.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/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 -module-name VCard -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 18.4 -target-sdk-name iphoneos18.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftsourceinfo -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 -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/icalendar-vcard-kit.build/Debug-iphoneos/VCard.build/Objects-normal/arm64/VCard.abi.json
EmitSwiftModule normal arm64 (in target 'VCard' from project 'icalendar-vcard-kit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:49:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCard(from content: String) async throws -> VCard {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:49:17: note: add @available attribute to enclosing instance method
    public func parseVCard(from content: String) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:60:45: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCard(from data: Data) async throws -> VCard {
                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:60:17: note: add @available attribute to enclosing instance method
    public func parseVCard(from data: Data) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:73:43: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCard(from url: URL) async throws -> VCard {
                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:73:17: note: add @available attribute to enclosing instance method
    public func parseVCard(from url: URL) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:86:51: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseVCards(from content: String) async throws -> [VCard] {
                                                  ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:86:17: note: add @available attribute to enclosing instance method
    public func parseVCards(from content: String) async throws -> [VCard] {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:102:48: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCard(_ vcard: VCard) async throws -> String {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:102:17: note: add @available attribute to enclosing instance method
    public func serializeVCard(_ vcard: VCard) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:113:48: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCard(_ vcard: VCard) async throws -> Data {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:113:17: note: add @available attribute to enclosing instance method
    public func serializeVCard(_ vcard: VCard) async throws -> Data {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:124:61: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCard(_ vcard: VCard, to url: URL) async throws {
                                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:124:17: note: add @available attribute to enclosing instance method
    public func serializeVCard(_ vcard: VCard, to url: URL) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:135:52: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeVCards(_ vcards: [VCard]) async throws -> String {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:135:17: note: add @available attribute to enclosing instance method
    public func serializeVCards(_ vcards: [VCard]) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:380:47: error: concurrency is only available in iOS 13.0.0 or newer
    public func validateVCard(_ vcard: VCard) async throws {
                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:380:17: note: add @available attribute to enclosing instance method
    public func validateVCard(_ vcard: VCard) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:386:52: error: concurrency is only available in iOS 13.0.0 or newer
    public func getVCardStatistics(_ vcard: VCard) async -> VCardStatistics {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:386:17: note: add @available attribute to enclosing instance method
    public func getVCardStatistics(_ vcard: VCard) async -> VCardStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:527:7: error: concurrency is only available in iOS 13.0.0 or newer
    ) async throws -> String {
      ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:524:17: note: add @available attribute to enclosing instance method
    public func exportVCards(
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:5:15: note: add @available attribute to enclosing struct
public struct VCardClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:570:49: error: concurrency is only available in iOS 13.0.0 or newer
    public static func parse(_ content: String) async throws -> VCard {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:570:24: note: add @available attribute to enclosing static method
    public static func parse(_ content: String) async throws -> VCard {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:567:1: note: add @available attribute to enclosing extension
extension VCardClient {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:576:50: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serialize(_ vcard: VCard) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:576:24: note: add @available attribute to enclosing static method
    public static func serialize(_ vcard: VCard) async throws -> String {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift:567:1: note: add @available attribute to enclosing extension
extension VCardClient {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: error: concurrency is only available in iOS 13.0.0 or newer
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:16:42: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ content: String) async throws -> VCard {
                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:16:17: note: add @available attribute to enclosing instance method
    public func parse(_ content: String) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:22:37: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ data: Data) async throws -> VCard {
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:22:17: note: add @available attribute to enclosing instance method
    public func parse(_ data: Data) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:30:40: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseFile(at url: URL) async throws -> VCard {
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:30:17: note: add @available attribute to enclosing instance method
    public func parseFile(at url: URL) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:49:48: error: concurrency is only available in iOS 13.0.0 or newer
    private func parseLines(_ lines: [String]) async throws -> VCard {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:49:18: note: add @available attribute to enclosing instance method
    private func parseLines(_ lines: [String]) async throws -> VCard {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:105:42: error: concurrency is only available in iOS 13.0.0 or newer
    public func validate(_ vcard: VCard) async throws {
                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:105:17: note: add @available attribute to enclosing instance method
    public func validate(_ vcard: VCard) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:119:53: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateProperties(_ vcard: VCard) async throws {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:119:18: note: add @available attribute to enclosing instance method
    private func validateProperties(_ vcard: VCard) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:204:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseMultiple(_ content: String) async throws -> [VCard] {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:204:17: note: add @available attribute to enclosing instance method
    public func parseMultiple(_ content: String) async throws -> [VCard] {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:241:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseAndValidate(_ content: String) async throws -> VCard {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:241:17: note: add @available attribute to enclosing instance method
    public func parseAndValidate(_ content: String) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:248:100: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ content: String, customValidation: @Sendable (VCard) async throws -> Void) async throws -> VCard {
                                                                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:248:17: note: add @available attribute to enclosing instance method
    public func parse(_ content: String, customValidation: @Sendable (VCard) async throws -> Void) async throws -> VCard {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:282:47: error: concurrency is only available in iOS 13.0.0 or newer
    public func getStatistics(_ vcard: VCard) async -> VCardStatistics {
                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:282:17: note: add @available attribute to enclosing instance method
    public func getStatistics(_ vcard: VCard) async -> VCardStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardParser.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: error: concurrency is only available in iOS 13.0.0 or newer
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:47:43: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcard: VCard) async throws -> String {
                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:47:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcard: VCard) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:57:49: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeToData(_ vcard: VCard) async throws -> Data {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:57:17: note: add @available attribute to enclosing instance method
    public func serializeToData(_ vcard: VCard) async throws -> Data {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:66:59: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeToFile(_ vcard: VCard, url: URL) async throws {
                                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:66:17: note: add @available attribute to enclosing instance method
    public func serializeToFile(_ vcard: VCard, url: URL) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:72:46: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcards: [VCard]) async throws -> String {
                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:72:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcards: [VCard]) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:85:49: error: concurrency is only available in iOS 13.0.0 or newer
    private func serializeVCard(_ vcard: VCard) async -> String {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:85:18: note: add @available attribute to enclosing instance method
    private func serializeVCard(_ vcard: VCard) async -> String {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:157:66: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcard: VCard, version: VCardVersion) async throws -> String {
                                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:157:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcard: VCard, version: VCardVersion) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:171:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeMinimal(_ vcard: VCard) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:171:17: note: add @available attribute to enclosing instance method
    public func serializeMinimal(_ vcard: VCard) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:185:51: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForApple(_ vcard: VCard) async -> String {
                                                  ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:185:17: note: add @available attribute to enclosing instance method
    public func serializeForApple(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:251:52: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForGoogle(_ vcard: VCard) async -> String {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:251:17: note: add @available attribute to enclosing instance method
    public func serializeForGoogle(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:284:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForOutlook(_ vcard: VCard) async -> String {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:284:17: note: add @available attribute to enclosing instance method
    public func serializeForOutlook(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:324:49: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializePretty(_ vcard: VCard) async -> String {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:324:17: note: add @available attribute to enclosing instance method
    public func serializePretty(_ vcard: VCard) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:345:47: error: concurrency is only available in iOS 13.0.0 or newer
    public func getStatistics(_ vcard: VCard) async -> SerializationStatistics {
                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:345:17: note: add @available attribute to enclosing instance method
    public func getStatistics(_ vcard: VCard) async -> SerializationStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:4:14: note: add @available attribute to enclosing actor
public actor VCardSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:394:50: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serialize(_ vcard: VCard) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:394:24: note: add @available attribute to enclosing static method
    public static func serialize(_ vcard: VCard) async throws -> String {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:391:1: note: add @available attribute to enclosing extension
extension VCardSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:400:56: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serializeToData(_ vcard: VCard) async throws -> Data {
                                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:400:24: note: add @available attribute to enclosing static method
    public static func serializeToData(_ vcard: VCard) async throws -> Data {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:391:1: note: add @available attribute to enclosing extension
extension VCardSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:406:63: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ vcard: VCard, lineEnding: String) async throws -> String {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:406:17: note: add @available attribute to enclosing instance method
    public func serialize(_ vcard: VCard, lineEnding: String) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardSerializer.swift:391:1: note: add @available attribute to enclosing extension
extension VCardSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:544:64: error: concurrency is only available in iOS 13.0.0 or newer
    public static func extractVCardsFromDirectory(at url: URL) async throws -> [VCard] {
                                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:544:24: note: add @available attribute to enclosing static method
    public static func extractVCardsFromDirectory(at url: URL) async throws -> [VCard] {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:542:15: note: add @available attribute to enclosing struct
public struct VCardIOUtilities {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:566:79: error: concurrency is only available in iOS 13.0.0 or newer
    public static func exportVCardsToFiles(_ vcards: [VCard], directory: URL) async throws {
                                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:566:24: note: add @available attribute to enclosing static method
    public static func exportVCardsToFiles(_ vcards: [VCard], directory: URL) async throws {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:542:15: note: add @available attribute to enclosing struct
public struct VCardIOUtilities {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:582:69: error: concurrency is only available in iOS 13.0.0 or newer
    public static func backupVCards(_ vcards: [VCard], to url: URL) async throws {
                                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:582:24: note: add @available attribute to enclosing static method
    public static func backupVCards(_ vcards: [VCard], to url: URL) async throws {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardUtilities.swift:542:15: note: add @available attribute to enclosing struct
public struct VCardIOUtilities {
              ^
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

SwiftEmitModule normal arm64 Emitting\ module\ for\ ICalendar (in target 'ICalendar' from project 'icalendar-vcard-kit')
Failed frontend command:
/Applications/Xcode-16.3.0.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/ICalendar.swift /Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarComponents.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 -target arm64-apple-ios12.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk/Developer/Library/Frameworks -no-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -profile-generate -profile-coverage-mapping -swift-version 6 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -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 -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos18.4-22E235-339d34bc69d7fc736c3220795c36f340.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 -module-name ICalendar -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 18.4 -target-sdk-name iphoneos18.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/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-master-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-master-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/ICalendar.swift:52:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseCalendar(from content: String) async throws -> ICalendar {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:52:17: note: add @available attribute to enclosing instance method
    public func parseCalendar(from content: String) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:63:48: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseCalendar(from data: Data) async throws -> ICalendar {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:63:17: note: add @available attribute to enclosing instance method
    public func parseCalendar(from data: Data) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:76:46: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseCalendar(from url: URL) async throws -> ICalendar {
                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:76:17: note: add @available attribute to enclosing instance method
    public func parseCalendar(from url: URL) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:89:54: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseCalendars(from content: String) async throws -> [ICalendar] {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:89:17: note: add @available attribute to enclosing instance method
    public func parseCalendars(from content: String) async throws -> [ICalendar] {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:105:58: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeCalendar(_ calendar: ICalendar) async throws -> String {
                                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:105:17: note: add @available attribute to enclosing instance method
    public func serializeCalendar(_ calendar: ICalendar) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:115:58: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeCalendar(_ calendar: ICalendar) async throws -> Data {
                                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:115:17: note: add @available attribute to enclosing instance method
    public func serializeCalendar(_ calendar: ICalendar) async throws -> Data {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:125:71: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeCalendar(_ calendar: ICalendar, to url: URL) async throws {
                                                                      ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:125:17: note: add @available attribute to enclosing instance method
    public func serializeCalendar(_ calendar: ICalendar, to url: URL) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:135:62: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeCalendars(_ calendars: [ICalendar]) async throws -> String {
                                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:135:17: note: add @available attribute to enclosing instance method
    public func serializeCalendars(_ calendars: [ICalendar]) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:458:57: error: concurrency is only available in iOS 13.0.0 or newer
    public func validateCalendar(_ calendar: ICalendar) async throws {
                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:458:17: note: add @available attribute to enclosing instance method
    public func validateCalendar(_ calendar: ICalendar) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:464:62: error: concurrency is only available in iOS 13.0.0 or newer
    public func getCalendarStatistics(_ calendar: ICalendar) async -> CalendarStatistics {
                                                             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:464:17: note: add @available attribute to enclosing instance method
    public func getCalendarStatistics(_ calendar: ICalendar) async -> CalendarStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:489:7: error: concurrency is only available in iOS 13.0.0 or newer
    ) async -> [ICalEvent] {
      ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:485:17: note: add @available attribute to enclosing instance method
    public func findEvents(
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:5:15: note: add @available attribute to enclosing struct
public struct ICalendarClient: Sendable {
              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:857:49: error: concurrency is only available in iOS 13.0.0 or newer
    public static func parse(_ content: String) async throws -> ICalendar {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:857:24: note: add @available attribute to enclosing static method
    public static func parse(_ content: String) async throws -> ICalendar {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:854:1: note: add @available attribute to enclosing extension
extension ICalendarClient {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:863:57: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serialize(_ calendar: ICalendar) async throws -> String {
                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:863:24: note: add @available attribute to enclosing static method
    public static func serialize(_ calendar: ICalendar) async throws -> String {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendar.swift:854:1: note: add @available attribute to enclosing extension
extension ICalendarClient {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: error: concurrency is only available in iOS 13.0.0 or newer
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:17:42: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ content: String) async throws -> ICalendar {
                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:17:17: note: add @available attribute to enclosing instance method
    public func parse(_ content: String) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:23:37: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ data: Data) async throws -> ICalendar {
                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:23:17: note: add @available attribute to enclosing instance method
    public func parse(_ data: Data) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:31:40: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseFile(at url: URL) async throws -> ICalendar {
                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:31:17: note: add @available attribute to enclosing instance method
    public func parseFile(at url: URL) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:50:48: error: concurrency is only available in iOS 13.0.0 or newer
    private func parseLines(_ lines: [String]) async throws -> ICalendar {
                                               ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:50:18: note: add @available attribute to enclosing instance method
    private func parseLines(_ lines: [String]) async throws -> ICalendar {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:175:49: error: concurrency is only available in iOS 13.0.0 or newer
    public func validate(_ calendar: ICalendar) async throws {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:175:17: note: add @available attribute to enclosing instance method
    public func validate(_ calendar: ICalendar) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:191:73: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateComponent(_ component: any ICalendarComponent) async throws {
                                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:191:18: note: add @available attribute to enclosing instance method
    private func validateComponent(_ component: any ICalendarComponent) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:208:52: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateEvent(_ event: ICalEvent) async throws {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:208:18: note: add @available attribute to enclosing instance method
    private func validateEvent(_ event: ICalEvent) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:232:49: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateTodo(_ todo: ICalTodo) async throws {
                                                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:232:18: note: add @available attribute to enclosing instance method
    private func validateTodo(_ todo: ICalTodo) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:249:58: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateJournal(_ journal: ICalJournal) async throws {
                                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:249:18: note: add @available attribute to enclosing instance method
    private func validateJournal(_ journal: ICalJournal) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:261:52: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateAlarm(_ alarm: ICalAlarm) async throws {
                                                   ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:261:18: note: add @available attribute to enclosing instance method
    private func validateAlarm(_ alarm: ICalAlarm) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:304:61: error: concurrency is only available in iOS 13.0.0 or newer
    private func validateTimeZone(_ timeZone: ICalTimeZone) async throws {
                                                            ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:304:18: note: add @available attribute to enclosing instance method
    private func validateTimeZone(_ timeZone: ICalTimeZone) async throws {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:4:14: note: add @available attribute to enclosing actor
public actor ICalendarParser: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:331:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseMultiple(_ content: String) async throws -> [ICalendar] {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:331:17: note: add @available attribute to enclosing instance method
    public func parseMultiple(_ content: String) async throws -> [ICalendar] {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:328:1: note: add @available attribute to enclosing extension
extension ICalendarParser {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:370:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func parseAndValidate(_ content: String) async throws -> ICalendar {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:370:17: note: add @available attribute to enclosing instance method
    public func parseAndValidate(_ content: String) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:328:1: note: add @available attribute to enclosing extension
extension ICalendarParser {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:377:104: error: concurrency is only available in iOS 13.0.0 or newer
    public func parse(_ content: String, customValidation: @Sendable (ICalendar) async throws -> Void) async throws -> ICalendar {
                                                                                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:377:17: note: add @available attribute to enclosing instance method
    public func parse(_ content: String, customValidation: @Sendable (ICalendar) async throws -> Void) async throws -> ICalendar {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarParser.swift:328:1: note: add @available attribute to enclosing extension
extension ICalendarParser {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: error: concurrency is only available in iOS 13.0.0 or newer
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:52:50: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ calendar: ICalendar) async throws -> String {
                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:52:17: note: add @available attribute to enclosing instance method
    public func serialize(_ calendar: ICalendar) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:62:56: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeToData(_ calendar: ICalendar) async throws -> Data {
                                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:62:17: note: add @available attribute to enclosing instance method
    public func serializeToData(_ calendar: ICalendar) async throws -> Data {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:71:66: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeToFile(_ calendar: ICalendar, url: URL) async throws {
                                                                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:71:17: note: add @available attribute to enclosing instance method
    public func serializeToFile(_ calendar: ICalendar, url: URL) async throws {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:77:53: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ calendars: [ICalendar]) async throws -> String {
                                                    ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:77:17: note: add @available attribute to enclosing instance method
    public func serialize(_ calendars: [ICalendar]) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:90:74: error: concurrency is only available in iOS 13.0.0 or newer
    private func serializeComponent(_ component: any ICalendarComponent) async -> String {
                                                                         ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:90:18: note: add @available attribute to enclosing instance method
    private func serializeComponent(_ component: any ICalendarComponent) async -> String {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:175:56: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeEvents(_ calendar: ICalendar) async throws -> String {
                                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:175:17: note: add @available attribute to enclosing instance method
    public func serializeEvents(_ calendar: ICalendar) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:203:63: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeWithTimeZones(_ calendar: ICalendar) async throws -> String {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:203:17: note: add @available attribute to enclosing instance method
    public func serializeWithTimeZones(_ calendar: ICalendar) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:239:57: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeMinimal(_ calendar: ICalendar) async throws -> String {
                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:239:17: note: add @available attribute to enclosing instance method
    public func serializeMinimal(_ calendar: ICalendar) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:254:60: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForOutlook(_ calendar: ICalendar) async -> String {
                                                           ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:254:17: note: add @available attribute to enclosing instance method
    public func serializeForOutlook(_ calendar: ICalendar) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:279:63: error: concurrency is only available in iOS 13.0.0 or newer
    private func serializeEventForOutlook(_ event: ICalEvent) async -> String {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:279:18: note: add @available attribute to enclosing instance method
    private func serializeEventForOutlook(_ event: ICalEvent) async -> String {
                 ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:331:59: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializeForGoogle(_ calendar: ICalendar) async -> String {
                                                          ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:331:17: note: add @available attribute to enclosing instance method
    public func serializeForGoogle(_ calendar: ICalendar) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:360:56: error: concurrency is only available in iOS 13.0.0 or newer
    public func serializePretty(_ calendar: ICalendar) async -> String {
                                                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:360:17: note: add @available attribute to enclosing instance method
    public func serializePretty(_ calendar: ICalendar) async -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:381:54: error: concurrency is only available in iOS 13.0.0 or newer
    public func getStatistics(_ calendar: ICalendar) async -> SerializationStatistics {
                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:381:17: note: add @available attribute to enclosing instance method
    public func getStatistics(_ calendar: ICalendar) async -> SerializationStatistics {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:12:14: note: add @available attribute to enclosing actor
public actor ICalendarSerializer: Sendable {
             ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:433:57: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serialize(_ calendar: ICalendar) async throws -> String {
                                                        ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:433:24: note: add @available attribute to enclosing static method
    public static func serialize(_ calendar: ICalendar) async throws -> String {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:430:1: note: add @available attribute to enclosing extension
extension ICalendarSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:439:63: error: concurrency is only available in iOS 13.0.0 or newer
    public static func serializeToData(_ calendar: ICalendar) async throws -> Data {
                                                              ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:439:24: note: add @available attribute to enclosing static method
    public static func serializeToData(_ calendar: ICalendar) async throws -> Data {
                       ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:430:1: note: add @available attribute to enclosing extension
extension ICalendarSerializer {
^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:445:70: error: concurrency is only available in iOS 13.0.0 or newer
    public func serialize(_ calendar: ICalendar, lineEnding: String) async throws -> String {
                                                                     ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:445:17: note: add @available attribute to enclosing instance method
    public func serialize(_ calendar: ICalendar, lineEnding: String) async throws -> String {
                ^
/Users/admin/builder/spi-builder-workspace/Sources/ICalendar/ICalendarSerializer.swift:430:1: note: add @available attribute to enclosing extension
extension ICalendarSerializer {
^
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\ VCardClient.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift (in target 'VCard' from project 'icalendar-vcard-kit')
Command SwiftCompile failed with a nonzero exit code
** BUILD FAILED **
The following build commands failed:
	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')
	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')
	SwiftCompile normal arm64 Compiling\ VCardClient.swift /Users/admin/builder/spi-builder-workspace/Sources/VCard/VCardClient.swift (in target 'VCard' from project 'icalendar-vcard-kit')
	Building workspace spi-builder-workspace with scheme icalendar-vcard-kit-Package
(6 failures)
BUILD FAILURE 6.1 iOS