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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 MarkWalkthrough, reference 0.6.0 (8563d0), with Swift 6.1 for iOS using Xcode 16.3 on 28 Apr 2025 02:06:43 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/icanzilb/MarkWalkthrough.git
Reference: 0.6.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/icanzilb/MarkWalkthrough
 * tag               0.6.0      -> FETCH_HEAD
HEAD is now at 8563d02 initial commit
Cloned https://github.com/icanzilb/MarkWalkthrough.git
Revision (git rev-parse @):
8563d026acc6fd4315c3090116e5db2250c88f9d
SUCCESS checkout https://github.com/icanzilb/MarkWalkthrough.git at 0.6.0
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/icanzilb/MarkWalkthrough.git
https://github.com/icanzilb/MarkWalkthrough.git
{
  "dependencies" : [
    {
      "identity" : "markcodable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.6.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/MarkCodable/MarkCodable"
    },
    {
      "identity" : "pow",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/EmergeTools/Pow"
    }
  ],
  "manifest_display_name" : "MarkWalkthrough",
  "name" : "MarkWalkthrough",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "MarkWalkthrough",
      "targets" : [
        "MarkWalkthrough"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MarkWalkthrough",
      "module_type" : "SwiftTarget",
      "name" : "MarkWalkthrough",
      "path" : "Sources/MarkWalkthrough",
      "product_dependencies" : [
        "MarkCodable",
        "Pow"
      ],
      "product_memberships" : [
        "MarkWalkthrough"
      ],
      "sources" : [
        "AnyTransitionExt.swift",
        "MarkWalkthroughModel.swift",
        "MarkWalkthroughWindow.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
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/EmergeTools/Pow
Fetching from https://github.com/MarkCodable/MarkCodable
Fetching from https://github.com/markcodable/swift-markdown.git
Fetching from https://github.com/markcodable/swift-cmark.git
Creating working copy of package ‘swift-cmark’
Checking out 0.100.1 of package ‘swift-cmark’
Creating working copy of package ‘Pow’
Checking out 1.0.5 of package ‘Pow’
Creating working copy of package ‘MarkCodable’
Checking out 0.6.9 of package ‘MarkCodable’
Creating working copy of package ‘swift-markdown’
Checking out 0.100.1 of package ‘swift-markdown’
Resolve Package Graph
Resolved source packages:
  MarkWalkthrough: /Users/admin/builder/spi-builder-workspace
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
resolved source packages: MarkWalkthrough, swift-markdown, cmark-gfm, Pow, MarkCodable
{
  "dependencies" : [
    {
      "identity" : "markcodable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.6.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/MarkCodable/MarkCodable"
    },
    {
      "identity" : "pow",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/EmergeTools/Pow"
    }
  ],
  "manifest_display_name" : "MarkWalkthrough",
  "name" : "MarkWalkthrough",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "MarkWalkthrough",
      "targets" : [
        "MarkWalkthrough"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MarkWalkthrough",
      "module_type" : "SwiftTarget",
      "name" : "MarkWalkthrough",
      "path" : "Sources/MarkWalkthrough",
      "product_dependencies" : [
        "MarkCodable",
        "Pow"
      ],
      "product_memberships" : [
        "MarkWalkthrough"
      ],
      "sources" : [
        "AnyTransitionExt.swift",
        "MarkWalkthroughModel.swift",
        "MarkWalkthroughWindow.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "MarkWalkthrough"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme MarkWalkthrough -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 MarkWalkthrough -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:
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
  MarkWalkthrough: /Users/admin/builder/spi-builder-workspace
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (14 targets)
    Target 'MarkWalkthrough' in project 'MarkWalkthrough'
        ➜ Explicit dependency on target 'MarkWalkthrough' in project 'MarkWalkthrough'
        ➜ Explicit dependency on target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Pow' in project 'Pow'
    Target 'MarkWalkthrough' in project 'MarkWalkthrough'
        ➜ Explicit dependency on target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Pow' in project 'Pow'
    Target 'Pow' in project 'Pow'
        ➜ Explicit dependency on target 'Pow' in project 'Pow'
        ➜ Explicit dependency on target 'Pow_Pow' in project 'Pow'
    Target 'Pow' in project 'Pow'
        ➜ Explicit dependency on target 'Pow_Pow' in project 'Pow'
    Target 'Pow_Pow' in project 'Pow' (no dependencies)
    Target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Markdown' in project 'swift-markdown'
    Target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Markdown' in project 'swift-markdown'
    Target 'Markdown' in project 'swift-markdown'
        ➜ Explicit dependency on target 'Markdown' in project 'swift-markdown'
        ➜ Explicit dependency on target 'CAtomic' in project 'swift-markdown'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm-extensions' in project 'cmark-gfm'
    Target 'Markdown' in project 'swift-markdown'
        ➜ Explicit dependency on target 'CAtomic' in project 'swift-markdown'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm-extensions' in project 'cmark-gfm'
    Target 'cmark-gfm-extensions' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm-extensions' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
    Target 'cmark-gfm-extensions' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
    Target 'cmark-gfm' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
    Target 'cmark-gfm' in project 'cmark-gfm' (no dependencies)
    Target 'CAtomic' in project 'swift-markdown' (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 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/usr/bin/actool --version --output-format xml1
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: 241296ca0a31666bf0391fb26ef426e5
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/241296ca0a31666bf0391fb26ef426e5.xcbuilddata
error: The package product 'MarkCodable' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'MarkWalkthrough' from project 'MarkWalkthrough')
error: The package product 'Pow' requires minimum platform version 15.0 for the iOS platform, but this target supports 12.0 (in target 'MarkWalkthrough' from project 'MarkWalkthrough')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme MarkWalkthrough
(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:
  MarkWalkthrough: /Users/admin/builder/spi-builder-workspace
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
resolved source packages: MarkWalkthrough, swift-markdown, cmark-gfm, Pow, MarkCodable
{
  "dependencies" : [
    {
      "identity" : "markcodable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.6.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/MarkCodable/MarkCodable"
    },
    {
      "identity" : "pow",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/EmergeTools/Pow"
    }
  ],
  "manifest_display_name" : "MarkWalkthrough",
  "name" : "MarkWalkthrough",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "MarkWalkthrough",
      "targets" : [
        "MarkWalkthrough"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MarkWalkthrough",
      "module_type" : "SwiftTarget",
      "name" : "MarkWalkthrough",
      "path" : "Sources/MarkWalkthrough",
      "product_dependencies" : [
        "MarkCodable",
        "Pow"
      ],
      "product_memberships" : [
        "MarkWalkthrough"
      ],
      "sources" : [
        "AnyTransitionExt.swift",
        "MarkWalkthroughModel.swift",
        "MarkWalkthroughWindow.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "MarkWalkthrough"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme MarkWalkthrough -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 MarkWalkthrough -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
  MarkWalkthrough: /Users/admin/builder/spi-builder-workspace
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (14 targets)
    Target 'MarkWalkthrough' in project 'MarkWalkthrough'
        ➜ Explicit dependency on target 'MarkWalkthrough' in project 'MarkWalkthrough'
        ➜ Explicit dependency on target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Pow' in project 'Pow'
    Target 'MarkWalkthrough' in project 'MarkWalkthrough'
        ➜ Explicit dependency on target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Pow' in project 'Pow'
    Target 'Pow' in project 'Pow'
        ➜ Explicit dependency on target 'Pow' in project 'Pow'
        ➜ Explicit dependency on target 'Pow_Pow' in project 'Pow'
    Target 'Pow' in project 'Pow'
        ➜ Explicit dependency on target 'Pow_Pow' in project 'Pow'
    Target 'Pow_Pow' in project 'Pow' (no dependencies)
    Target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Markdown' in project 'swift-markdown'
    Target 'MarkCodable' in project 'MarkCodable'
        ➜ Explicit dependency on target 'Markdown' in project 'swift-markdown'
    Target 'Markdown' in project 'swift-markdown'
        ➜ Explicit dependency on target 'Markdown' in project 'swift-markdown'
        ➜ Explicit dependency on target 'CAtomic' in project 'swift-markdown'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm-extensions' in project 'cmark-gfm'
    Target 'Markdown' in project 'swift-markdown'
        ➜ Explicit dependency on target 'CAtomic' in project 'swift-markdown'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm-extensions' in project 'cmark-gfm'
    Target 'cmark-gfm-extensions' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm-extensions' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
    Target 'cmark-gfm-extensions' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
    Target 'cmark-gfm' in project 'cmark-gfm'
        ➜ Explicit dependency on target 'cmark-gfm' in project 'cmark-gfm'
    Target 'cmark-gfm' in project 'cmark-gfm' (no dependencies)
    Target 'CAtomic' in project 'swift-markdown' (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 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/usr/bin/actool --version --output-format xml1
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: 5001c408b9e5d4e208b6f1bb1f8869e9
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/5001c408b9e5d4e208b6f1bb1f8869e9.xcbuilddata
error: The package product 'MarkCodable' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'MarkWalkthrough' from project 'MarkWalkthrough')
error: The package product 'Pow' requires minimum platform version 15.0 for the iOS platform, but this target supports 12.0 (in target 'MarkWalkthrough' from project 'MarkWalkthrough')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme MarkWalkthrough
(1 failure)
BUILD FAILURE 6.1 iOS