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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 RxNimble, reference 5.0.4 (ade31d), with Swift 6.0 (beta) for watchOS using Xcode 16.0 on 15 Sep 2024 04:33:27 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme RxNimble -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.53.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mRs-/RxNimble.git
Reference: 5.0.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mRs-/RxNimble
 * tag               5.0.4      -> FETCH_HEAD
HEAD is now at ade31d7 Updated Package.swift
Cloned https://github.com/mRs-/RxNimble.git
Revision (git rev-parse @):
ade31d7f902dc420f4001b202e47657f887e55bc
SUCCESS checkout https://github.com/mRs-/RxNimble.git at 5.0.4
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/mRs-/RxNimble.git
Command line invocation:
    /Applications/Xcode-16.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "rxswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ReactiveX/RxSwift"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
    }
  ],
  "manifest_display_name" : "RxNimble",
  "name" : "RxNimble",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "RxNimble",
      "targets" : [
        "RxNimble"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "RxNimble",
      "module_type" : "SwiftTarget",
      "name" : "RxNimble",
      "path" : "Source",
      "product_dependencies" : [
        "RxSwift",
        "Nimble",
        "RxTest",
        "RxBlocking"
      ],
      "product_memberships" : [
        "RxNimble"
      ],
      "sources" : [
        "Core/Expectation+Ext.swift",
        "RxBlocking/Expectation+Blocking.swift",
        "RxTest/Equal+RxTest.swift",
        "RxTest/Expectation+RxTest.swift",
        "RxTest/ThrowError+RxTest.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "RxNimble",
    "schemes" : [
      "RxNimbleRxBlocking",
      "RxNimbleRxTest"
    ],
    "targets" : [
      "RxNimbleRxBlocking",
      "RxNimbleRxTest",
      "RxNimbleRxBlockingTests",
      "RxNimbleRxTestTests"
    ]
  }
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "RxNimble"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme RxNimble -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete
Command line invocation:
    /Applications/Xcode-16.0.0-Release.Candidate.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 RxNimble -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  RxSwift: https://github.com/ReactiveX/RxSwift @ 5.1.3
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
  RxNimble: /Users/admin/builder/spi-builder-workspace
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (10 targets)
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble' (no dependencies)
    Target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxSwift' in project 'RxSwift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 8feed1ad85e5d04fbe9d1175fe1ed7a4
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/8feed1ad85e5d04fbe9d1175fe1ed7a4.xcbuilddata
error: The package product 'Nimble' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'RxNimble' from project 'RxNimble')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme RxNimble
(1 failure)
Command line invocation:
    /Applications/Xcode-16.0.0-Release.Candidate.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 RxNimble -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete
Resolve Package Graph
Resolved source packages:
  RxNimble: /Users/admin/builder/spi-builder-workspace
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  RxSwift: https://github.com/ReactiveX/RxSwift @ 5.1.3
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (10 targets)
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble' (no dependencies)
    Target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxSwift' in project 'RxSwift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'Nimble' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'RxNimble' from project 'RxNimble')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme RxNimble
(1 failure)
BUILD FAILURE 6.0 watchOS