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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 sLaunchctl, reference 0.3.2 (3055d4), with Swift 6.1 for iOS using Xcode 16.3 on 28 Apr 2025 07:37:22 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Alkenso/sLaunchctl.git
Reference: 0.3.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Alkenso/sLaunchctl
 * tag               0.3.2      -> FETCH_HEAD
HEAD is now at 3055d43 Bump min supported version to 10.15
Cloned https://github.com/Alkenso/sLaunchctl.git
Revision (git rev-parse @):
3055d43bd79ba34f013f0add76e0bee5b5a1acce
SUCCESS checkout https://github.com/Alkenso/sLaunchctl.git at 0.3.2
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Alkenso/sLaunchctl.git
https://github.com/Alkenso/sLaunchctl.git
{
  "dependencies" : [
    {
      "identity" : "swiftspellbook",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.3.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Alkenso/SwiftSpellbook.git"
    }
  ],
  "manifest_display_name" : "sLaunchctl",
  "name" : "sLaunchctl",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "sLaunchctl",
      "targets" : [
        "sLaunchctl"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sLaunchctlTests",
      "module_type" : "SwiftTarget",
      "name" : "sLaunchctlTests",
      "path" : "Tests/sLaunchctlTests",
      "product_dependencies" : [
        "SpellbookFoundation"
      ],
      "sources" : [
        "LaunchctlParsingTests.swift",
        "LiveTesting.swift",
        "ServiceParsingTests.swift"
      ],
      "target_dependencies" : [
        "sLaunchctl"
      ],
      "type" : "test"
    },
    {
      "c99name" : "sLaunchctl",
      "module_type" : "SwiftTarget",
      "name" : "sLaunchctl",
      "path" : "Sources/sLaunchctl",
      "product_dependencies" : [
        "SpellbookFoundation"
      ],
      "product_memberships" : [
        "sLaunchctl"
      ],
      "sources" : [
        "Internals/Error.swift",
        "Internals/OutputParser.swift",
        "Internals/Utils.swift",
        "Launchctl.swift",
        "Service.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
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/Alkenso/SwiftSpellbook.git
Creating working copy of package ‘SwiftSpellbook’
Checking out 0.4.2 of package ‘SwiftSpellbook’
Resolve Package Graph
Resolved source packages:
  SwiftSpellbook: https://github.com/Alkenso/SwiftSpellbook.git @ 0.4.2
  sLaunchctl: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftSpellbook, sLaunchctl
{
  "dependencies" : [
    {
      "identity" : "swiftspellbook",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.3.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Alkenso/SwiftSpellbook.git"
    }
  ],
  "manifest_display_name" : "sLaunchctl",
  "name" : "sLaunchctl",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "sLaunchctl",
      "targets" : [
        "sLaunchctl"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sLaunchctlTests",
      "module_type" : "SwiftTarget",
      "name" : "sLaunchctlTests",
      "path" : "Tests/sLaunchctlTests",
      "product_dependencies" : [
        "SpellbookFoundation"
      ],
      "sources" : [
        "LaunchctlParsingTests.swift",
        "LiveTesting.swift",
        "ServiceParsingTests.swift"
      ],
      "target_dependencies" : [
        "sLaunchctl"
      ],
      "type" : "test"
    },
    {
      "c99name" : "sLaunchctl",
      "module_type" : "SwiftTarget",
      "name" : "sLaunchctl",
      "path" : "Sources/sLaunchctl",
      "product_dependencies" : [
        "SpellbookFoundation"
      ],
      "product_memberships" : [
        "sLaunchctl"
      ],
      "sources" : [
        "Internals/Error.swift",
        "Internals/OutputParser.swift",
        "Internals/Utils.swift",
        "Launchctl.swift",
        "Service.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "sLaunchctl"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme sLaunchctl -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 sLaunchctl -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:
  sLaunchctl: /Users/admin/builder/spi-builder-workspace
  SwiftSpellbook: https://github.com/Alkenso/SwiftSpellbook.git @ 0.4.2
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (5 targets)
    Target 'sLaunchctl' in project 'sLaunchctl'
        ➜ Explicit dependency on target 'sLaunchctl' in project 'sLaunchctl'
        ➜ Explicit dependency on target 'SpellbookFoundation' in project 'SwiftSpellbook'
    Target 'sLaunchctl' in project 'sLaunchctl'
        ➜ Explicit dependency on target 'SpellbookFoundation' in project 'SwiftSpellbook'
    Target 'SpellbookFoundation' in project 'SwiftSpellbook'
        ➜ Explicit dependency on target 'SpellbookFoundation' in project 'SwiftSpellbook'
        ➜ Explicit dependency on target 'SpellbookFoundationObjC' in project 'SwiftSpellbook'
    Target 'SpellbookFoundation' in project 'SwiftSpellbook'
        ➜ Explicit dependency on target 'SpellbookFoundationObjC' in project 'SwiftSpellbook'
    Target 'SpellbookFoundationObjC' in project 'SwiftSpellbook' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x objective-c++ -c /dev/null
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
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x c -c /dev/null
Build description signature: b803ae6ba83e0f26409db3f82b260682
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/b803ae6ba83e0f26409db3f82b260682.xcbuilddata
error: The package product 'SpellbookFoundation' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'sLaunchctl' from project 'sLaunchctl')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme sLaunchctl
(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:
  sLaunchctl: /Users/admin/builder/spi-builder-workspace
  SwiftSpellbook: https://github.com/Alkenso/SwiftSpellbook.git @ 0.4.2
resolved source packages: sLaunchctl, SwiftSpellbook
{
  "dependencies" : [
    {
      "identity" : "swiftspellbook",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.3.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Alkenso/SwiftSpellbook.git"
    }
  ],
  "manifest_display_name" : "sLaunchctl",
  "name" : "sLaunchctl",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "sLaunchctl",
      "targets" : [
        "sLaunchctl"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sLaunchctlTests",
      "module_type" : "SwiftTarget",
      "name" : "sLaunchctlTests",
      "path" : "Tests/sLaunchctlTests",
      "product_dependencies" : [
        "SpellbookFoundation"
      ],
      "sources" : [
        "LaunchctlParsingTests.swift",
        "LiveTesting.swift",
        "ServiceParsingTests.swift"
      ],
      "target_dependencies" : [
        "sLaunchctl"
      ],
      "type" : "test"
    },
    {
      "c99name" : "sLaunchctl",
      "module_type" : "SwiftTarget",
      "name" : "sLaunchctl",
      "path" : "Sources/sLaunchctl",
      "product_dependencies" : [
        "SpellbookFoundation"
      ],
      "product_memberships" : [
        "sLaunchctl"
      ],
      "sources" : [
        "Internals/Error.swift",
        "Internals/OutputParser.swift",
        "Internals/Utils.swift",
        "Launchctl.swift",
        "Service.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "sLaunchctl"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme sLaunchctl -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 sLaunchctl -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  sLaunchctl: /Users/admin/builder/spi-builder-workspace
  SwiftSpellbook: https://github.com/Alkenso/SwiftSpellbook.git @ 0.4.2
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (5 targets)
    Target 'sLaunchctl' in project 'sLaunchctl'
        ➜ Explicit dependency on target 'sLaunchctl' in project 'sLaunchctl'
        ➜ Explicit dependency on target 'SpellbookFoundation' in project 'SwiftSpellbook'
    Target 'sLaunchctl' in project 'sLaunchctl'
        ➜ Explicit dependency on target 'SpellbookFoundation' in project 'SwiftSpellbook'
    Target 'SpellbookFoundation' in project 'SwiftSpellbook'
        ➜ Explicit dependency on target 'SpellbookFoundation' in project 'SwiftSpellbook'
        ➜ Explicit dependency on target 'SpellbookFoundationObjC' in project 'SwiftSpellbook'
    Target 'SpellbookFoundation' in project 'SwiftSpellbook'
        ➜ Explicit dependency on target 'SpellbookFoundationObjC' in project 'SwiftSpellbook'
    Target 'SpellbookFoundationObjC' in project 'SwiftSpellbook' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x objective-c++ -c /dev/null
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
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.4.sdk -x c -c /dev/null
Build description signature: fa50488a92ae8c4cbe2bfdbca4e5c6b7
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/fa50488a92ae8c4cbe2bfdbca4e5c6b7.xcbuilddata
error: The package product 'SpellbookFoundation' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'sLaunchctl' from project 'sLaunchctl')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme sLaunchctl
(1 failure)
BUILD FAILURE 6.1 iOS