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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 Ditto with Swift 5.9 for visionOS using Xcode 15.2 at 4.7.1.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$workDir/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $workDir/.derivedData build -scheme Ditto-Package -destination generic/platform=xros

Build Log

========================================
RunAll
========================================
Builder version: 4.38.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/getditto/DittoSwiftPackage.git
Reference: 4.7.1
Initialized empty Git repository in /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/getditto/DittoSwiftPackage
 * tag               4.7.1      -> FETCH_HEAD
HEAD is now at e9ac25a Release 4.7.1
Cloned https://github.com/getditto/DittoSwiftPackage.git
Revision (git rev-parse @):
e9ac25ae9d38d215cc5958c995450dbc9b9dbea7
SUCCESS checkout https://github.com/getditto/DittoSwiftPackage.git at 4.7.1
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             5.9
Building package at path:  $workDir
https://github.com/getditto/DittoSwiftPackage.git
Command line invocation:
    /Applications/Xcode-15.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Ditto: /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace
resolved source packages: Ditto
objc[74007]: Class XROS1_1SimRuntime is implemented in both /Library/Developer/CoreSimulator/Volumes/xrOS_21O209/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10e8ac0e0) and /Library/Developer/CoreSimulator/Volumes/xrOS_21O5181e/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10ea5c0e0). One of the two will be used. Which one is undefined.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Ditto",
  "name" : "Ditto",
  "path" : "/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "DittoSwift",
      "targets" : [
        "DittoSwiftWrapper"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "DittoObjC",
      "targets" : [
        "DittoObjC"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DittoSwiftWrapper",
      "module_type" : "SwiftTarget",
      "name" : "DittoSwiftWrapper",
      "path" : "Sources/DittoSwiftWrapper",
      "product_memberships" : [
        "DittoSwift"
      ],
      "sources" : [
        "dummy.swift"
      ],
      "target_dependencies" : [
        "DittoSwift",
        "DittoObjC"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DittoSwift",
      "module_type" : "BinaryTarget",
      "name" : "DittoSwift",
      "path" : "remote/archive/DittoSwift.xcframework.zip",
      "product_memberships" : [
        "DittoSwift"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "DittoObjC",
      "module_type" : "BinaryTarget",
      "name" : "DittoObjC",
      "path" : "remote/archive/DittoObjC.xcframework.zip",
      "product_memberships" : [
        "DittoSwift",
        "DittoObjC"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "5.5"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Ditto-Package",
      "DittoObjC",
      "DittoSwift"
    ]
  }
}
objc[74243]: Class XROS1_1SimRuntime is implemented in both /Library/Developer/CoreSimulator/Volumes/xrOS_21O209/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10b67c0e0) and /Library/Developer/CoreSimulator/Volumes/xrOS_21O5181e/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10cff00e0). One of the two will be used. Which one is undefined.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Ditto-Package",
      "DittoObjC",
      "DittoSwift"
    ]
  }
}
objc[74289]: Class XROS1_1SimRuntime is implemented in both /Library/Developer/CoreSimulator/Volumes/xrOS_21O209/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10df240e0) and /Library/Developer/CoreSimulator/Volumes/xrOS_21O5181e/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10df4c0e0). One of the two will be used. Which one is undefined.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$workDir/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $workDir/.derivedData build -scheme Ditto-Package -destination generic/platform=xros
Command line invocation:
    /Applications/Xcode-15.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.derivedData build -scheme Ditto-Package -destination generic/platform=xros
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Resolved source packages:
  Ditto: /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'DittoSwift' in project 'Ditto'
        ➜ Explicit dependency on target 'DittoSwiftWrapper' in project 'Ditto'
    Target 'DittoSwiftWrapper' in project 'Ditto' (no dependencies)
    Target 'DittoObjC' in project 'Ditto' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
Build description signature: 33dc4c54b78d28be642f6008848c4b34
Build description path: /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/33dc4c54b78d28be642f6008848c4b34.xcbuilddata
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework'. (in target 'DittoSwiftWrapper' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework'. (in target 'DittoSwiftWrapper' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework'. (in target 'DittoObjC' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework'. (in target 'DittoSwift' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework'. (in target 'DittoSwift' from project 'Ditto')
objc[74321]: Class XROS1_1SimRuntime is implemented in both /Library/Developer/CoreSimulator/Volumes/xrOS_21O209/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10a4e00e0) and /Library/Developer/CoreSimulator/Volumes/xrOS_21O5181e/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10b3140e0). One of the two will be used. Which one is undefined.
** BUILD FAILED **
Command line invocation:
    /Applications/Xcode-15.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.derivedData build -scheme Ditto-Package -destination generic/platform=xros
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Resolved source packages:
  Ditto: /Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'DittoSwift' in project 'Ditto'
        ➜ Explicit dependency on target 'DittoSwiftWrapper' in project 'Ditto'
    Target 'DittoSwiftWrapper' in project 'Ditto' (no dependencies)
    Target 'DittoObjC' in project 'Ditto' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework'. (in target 'DittoObjC' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework'. (in target 'DittoSwiftWrapper' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework'. (in target 'DittoSwiftWrapper' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoObjC/DittoObjC.xcframework'. (in target 'DittoSwift' from project 'Ditto')
/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework:1:1: error: While building for visionOS, no library for this platform was found in '/Users/builder/builds/TDmZkXJm/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/DittoSwift/DittoSwift.xcframework'. (in target 'DittoSwift' from project 'Ditto')
objc[74350]: Class XROS1_1SimRuntime is implemented in both /Library/Developer/CoreSimulator/Volumes/xrOS_21O209/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10eb700e0) and /Library/Developer/CoreSimulator/Volumes/xrOS_21O5181e/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x11448c0e0). One of the two will be used. Which one is undefined.
** BUILD FAILED **
BUILD FAILURE 5.9 visionOS