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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 master (c7f2c8), with Swift 6.0 (beta) for watchOS using Xcode 16.0 on 15 Sep 2024 04:31:56 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: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mRs-/RxNimble
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c7f2c85 Update Package.swift
Cloned https://github.com/mRs-/RxNimble.git
Revision (git rev-parse @):
c7f2c85e6e6ab5a5a2df6f716cc4ab2ade425715
SUCCESS checkout https://github.com/mRs-/RxNimble.git at master
========================================
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" : "6.0.0",
            "upper_bound" : "7.0.0"
          }
        ]
      },
      "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:
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  RxNimble: /Users/admin/builder/spi-builder-workspace
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  RxSwift: https://github.com/ReactiveX/RxSwift @ 6.7.1
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: 613072cc431d317bc8b9783a2e9b040c
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/613072cc431d317bc8b9783a2e9b040c.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:
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  RxNimble: /Users/admin/builder/spi-builder-workspace
  RxSwift: https://github.com/ReactiveX/RxSwift @ 6.7.1
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