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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 Ross, reference 0.1.4 (83d299), with Swift 6.1 for iOS using Xcode 16.3 on 27 Apr 2025 11:25:47 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ross -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/gonzalonunez/ross.git
Reference: 0.1.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/gonzalonunez/ross
 * tag               0.1.4      -> FETCH_HEAD
HEAD is now at 83d299d Preserve header comments
Cloned https://github.com/gonzalonunez/ross.git
Revision (git rev-parse @):
83d299d66320639255ba866cebc01f542cc21996
SUCCESS checkout https://github.com/gonzalonunez/ross.git at 0.1.4
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/gonzalonunez/ross.git
https://github.com/gonzalonunez/ross.git
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    },
    {
      "identity" : "swift-syntax",
      "requirement" : {
        "exact" : [
          "0.50800.0-SNAPSHOT-2022-12-29-a"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-syntax.git"
    }
  ],
  "manifest_display_name" : "Ross",
  "name" : "Ross",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "ross",
      "targets" : [
        "ross"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ross",
      "module_type" : "SwiftTarget",
      "name" : "ross",
      "path" : "Sources/ross",
      "product_dependencies" : [
        "ArgumentParser",
        "SwiftParser",
        "SwiftSyntax"
      ],
      "product_memberships" : [
        "ross"
      ],
      "sources" : [
        "CommentRewriter.swift",
        "Ross.swift",
        "RossRunner.swift",
        "RossRunnerError.swift"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "RossTests",
      "module_type" : "SwiftTarget",
      "name" : "RossTests",
      "path" : "Tests/RossTests",
      "sources" : [
        "RossTests.swift"
      ],
      "target_dependencies" : [
        "ross"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "5.6"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/apple/swift-syntax.git
Fetching from https://github.com/apple/swift-argument-parser (cached)
Creating working copy of package ‘swift-argument-parser’
Checking out 1.5.0 of package ‘swift-argument-parser’
Creating working copy of package ‘swift-syntax’
Checking out 0.50800.0-SNAPSHOT-2022-12-29-a of package ‘swift-syntax’
Resolve Package Graph
Resolved source packages:
  SwiftSyntax: https://github.com/apple/swift-syntax.git @ 0.50800.0-SNAPSHOT-2022-12-29-a
  Ross: /Users/admin/builder/spi-builder-workspace
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.5.0
resolved source packages: SwiftSyntax, Ross, swift-argument-parser
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    },
    {
      "identity" : "swift-syntax",
      "requirement" : {
        "exact" : [
          "0.50800.0-SNAPSHOT-2022-12-29-a"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-syntax.git"
    }
  ],
  "manifest_display_name" : "Ross",
  "name" : "Ross",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "ross",
      "targets" : [
        "ross"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ross",
      "module_type" : "SwiftTarget",
      "name" : "ross",
      "path" : "Sources/ross",
      "product_dependencies" : [
        "ArgumentParser",
        "SwiftParser",
        "SwiftSyntax"
      ],
      "product_memberships" : [
        "ross"
      ],
      "sources" : [
        "CommentRewriter.swift",
        "Ross.swift",
        "RossRunner.swift",
        "RossRunnerError.swift"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "RossTests",
      "module_type" : "SwiftTarget",
      "name" : "RossTests",
      "path" : "Tests/RossTests",
      "sources" : [
        "RossTests.swift"
      ],
      "target_dependencies" : [
        "ross"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Ross"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ross -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 Ross -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
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  SwiftSyntax: https://github.com/apple/swift-syntax.git @ 0.50800.0-SNAPSHOT-2022-12-29-a
  Ross: /Users/admin/builder/spi-builder-workspace
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.5.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
    Target 'RossTests' in project 'Ross'
        ➜ Explicit dependency on target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'SwiftSyntax' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftDiagnostics' in project 'SwiftSyntax'
    Target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftDiagnostics' in project 'SwiftSyntax'
    Target 'SwiftDiagnostics' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'SwiftSyntax' in project 'SwiftSyntax' (no dependencies)
    Target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
    Target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
    Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 9acc5dd8bef7bbe26b19d72273dd3268
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/9acc5dd8bef7bbe26b19d72273dd3268.xcbuilddata
error: The package product 'SwiftParser' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
error: The package product 'SwiftSyntax' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
error: The package product 'SwiftParser' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
error: The package product 'SwiftSyntax' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Ross
(1 failure)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  Ross: /Users/admin/builder/spi-builder-workspace
  SwiftSyntax: https://github.com/apple/swift-syntax.git @ 0.50800.0-SNAPSHOT-2022-12-29-a
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.5.0
resolved source packages: Ross, SwiftSyntax, swift-argument-parser
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    },
    {
      "identity" : "swift-syntax",
      "requirement" : {
        "exact" : [
          "0.50800.0-SNAPSHOT-2022-12-29-a"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-syntax.git"
    }
  ],
  "manifest_display_name" : "Ross",
  "name" : "Ross",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "ross",
      "targets" : [
        "ross"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ross",
      "module_type" : "SwiftTarget",
      "name" : "ross",
      "path" : "Sources/ross",
      "product_dependencies" : [
        "ArgumentParser",
        "SwiftParser",
        "SwiftSyntax"
      ],
      "product_memberships" : [
        "ross"
      ],
      "sources" : [
        "CommentRewriter.swift",
        "Ross.swift",
        "RossRunner.swift",
        "RossRunnerError.swift"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "RossTests",
      "module_type" : "SwiftTarget",
      "name" : "RossTests",
      "path" : "Tests/RossTests",
      "sources" : [
        "RossTests.swift"
      ],
      "target_dependencies" : [
        "ross"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Ross"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ross -destination generic/platform=iOS
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 Ross -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  SwiftSyntax: https://github.com/apple/swift-syntax.git @ 0.50800.0-SNAPSHOT-2022-12-29-a
  swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.5.0
  Ross: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
    Target 'RossTests' in project 'Ross'
        ➜ Explicit dependency on target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'ross' in project 'Ross'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'SwiftSyntax' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftDiagnostics' in project 'SwiftSyntax'
    Target 'SwiftParser' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftDiagnostics' in project 'SwiftSyntax'
    Target 'SwiftDiagnostics' in project 'SwiftSyntax'
        ➜ Explicit dependency on target 'SwiftSyntax' in project 'SwiftSyntax'
    Target 'SwiftSyntax' in project 'SwiftSyntax' (no dependencies)
    Target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
    Target 'ArgumentParser' in project 'swift-argument-parser'
        ➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
    Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: a3297b525afbdc84a7726e61fa65578e
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/a3297b525afbdc84a7726e61fa65578e.xcbuilddata
error: The package product 'SwiftParser' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
error: The package product 'SwiftSyntax' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
error: The package product 'SwiftParser' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
error: The package product 'SwiftSyntax' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'ross' from project 'Ross')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Ross
(1 failure)
BUILD FAILURE 6.1 iOS