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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 USBDeviceSwift with Swift 6.1 for iOS 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/Arti3DPlayer/USBDeviceSwift.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Arti3DPlayer/USBDeviceSwift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at b26a0b4 Merge pull request #27 from emorydunn/master
Cloned https://github.com/Arti3DPlayer/USBDeviceSwift.git
Revision (git rev-parse @):
b26a0b4b3f9230ac767eee248e31706f7949a143
SUCCESS checkout https://github.com/Arti3DPlayer/USBDeviceSwift.git at master
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Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Arti3DPlayer/USBDeviceSwift.git
https://github.com/Arti3DPlayer/USBDeviceSwift.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "USBDeviceSwift",
  "name" : "USBDeviceSwift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "USBDeviceSwift",
      "targets" : [
        "USBDeviceSwift"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "USBDeviceSwift",
      "module_type" : "SwiftTarget",
      "name" : "USBDeviceSwift",
      "path" : "Sources",
      "product_memberships" : [
        "USBDeviceSwift"
      ],
      "sources" : [
        "HIDDevice.swift",
        "HIDDeviceMonitor.swift",
        "SerialDevice.swift",
        "SerialDeviceMonitor.swift",
        "USBDevice.swift",
        "USBDeviceMonitor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
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" : "USBDeviceSwift",
  "name" : "USBDeviceSwift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "USBDeviceSwift",
      "targets" : [
        "USBDeviceSwift"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "USBDeviceSwift",
      "module_type" : "SwiftTarget",
      "name" : "USBDeviceSwift",
      "path" : "Sources",
      "product_memberships" : [
        "USBDeviceSwift"
      ],
      "sources" : [
        "HIDDevice.swift",
        "HIDDeviceMonitor.swift",
        "SerialDevice.swift",
        "SerialDeviceMonitor.swift",
        "USBDevice.swift",
        "USBDeviceMonitor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "USBDeviceSwift",
    "schemes" : [
      "USBDeviceSwift"
    ],
    "targets" : [
      "USBDeviceSwift"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme USBDeviceSwift -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 USBDeviceSwift -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
2025-04-27 19:46:58.625 xcodebuild[575:3272] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-27-04_19-46-0058.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:iOS }
	Available destinations for the "USBDeviceSwift" scheme:
		{ platform:macOS, arch:arm64, id:0c4f234f4d54a008d4e4cb16f7275cda4e13369e, name:My Mac }
		{ platform:macOS, arch:x86_64, id:0c4f234f4d54a008d4e4cb16f7275cda4e13369e, name:My Mac }
		{ platform:macOS, name:Any Mac }
INFRASTRUCTURE ERROR (status: destinationUnavailable