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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build MatomoTracker with Swift 6.1 for watchOS using Xcode 16.3.

Build Command

Build command unavailable

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/matomo-org/matomo-sdk-ios.git
Reference: v7.7.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/matomo-org/matomo-sdk-ios
 * tag               v7.7.0     -> FETCH_HEAD
HEAD is now at 82a1f3b Prepared 7.7.0 release
Cloned https://github.com/matomo-org/matomo-sdk-ios.git
Revision (git rev-parse @):
82a1f3b18215381e2133d98b7cc09b5a855ff99d
SUCCESS checkout https://github.com/matomo-org/matomo-sdk-ios.git at v7.7.0
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Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/matomo-org/matomo-sdk-ios.git
https://github.com/matomo-org/matomo-sdk-ios.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MatomoTracker",
  "name" : "MatomoTracker",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "MatomoTracker",
      "targets" : [
        "MatomoTracker"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "MatomoTracker",
      "module_type" : "SwiftTarget",
      "name" : "MatomoTracker",
      "path" : "MatomoTracker",
      "product_memberships" : [
        "MatomoTracker"
      ],
      "sources" : [
        "Application.swift",
        "CustomDimension.swift",
        "CustomVariable.swift",
        "Device.swift",
        "Dispatcher.swift",
        "Event.swift",
        "EventAPISerializer.swift",
        "Locale+HttpAcceptLanguage.swift",
        "Logger.swift",
        "MainThread.swift",
        "MatomoTracker.swift",
        "MatomoUserDefaults.swift",
        "MemoryQueue.swift",
        "OrderItem.swift",
        "Queue.swift",
        "Session.swift",
        "URLSessionDispatcher.swift",
        "UserAgent.swift",
        "UserDefaultsQueue.swift",
        "Visitor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MatomoTracker",
  "name" : "MatomoTracker",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "MatomoTracker",
      "targets" : [
        "MatomoTracker"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "MatomoTracker",
      "module_type" : "SwiftTarget",
      "name" : "MatomoTracker",
      "path" : "MatomoTracker",
      "product_memberships" : [
        "MatomoTracker"
      ],
      "sources" : [
        "Application.swift",
        "CustomDimension.swift",
        "CustomVariable.swift",
        "Device.swift",
        "Dispatcher.swift",
        "Event.swift",
        "EventAPISerializer.swift",
        "Locale+HttpAcceptLanguage.swift",
        "Logger.swift",
        "MainThread.swift",
        "MatomoTracker.swift",
        "MatomoUserDefaults.swift",
        "MemoryQueue.swift",
        "OrderItem.swift",
        "Queue.swift",
        "Session.swift",
        "URLSessionDispatcher.swift",
        "UserAgent.swift",
        "UserDefaultsQueue.swift",
        "Visitor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "MatomoTracker",
    "schemes" : [
      "MatomoTracker"
    ],
    "targets" : [
      "MatomoTracker",
      "MatomoTrackerTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme MatomoTracker -destination generic/platform=watchOS 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 MatomoTracker -destination generic/platform=watchOS "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
2025-04-29 01:35:29.502 xcodebuild[576:3286] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-29-04_01-35-0029.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:watchOS }
	Available destinations for the "MatomoTracker" scheme:
		{ platform:macOS, arch:arm64, id:6b239b7560520a1b31df84b2b8a7d11248e47775, name:My Mac }
		{ platform:macOS, arch:x86_64, id:6b239b7560520a1b31df84b2b8a7d11248e47775, name:My Mac }
		{ platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device }
		{ platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device }
		{ platform:macOS, name:Any Mac }
		{ platform:tvOS, id:dvtdevice-DVTiOSDevicePlaceholder-appletvos:placeholder, name:Any tvOS Device }
		{ platform:tvOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-appletvsimulator:placeholder, name:Any tvOS Simulator Device }
INFRASTRUCTURE ERROR (status: destinationUnavailable