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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 watchOS using Xcode 16.3 on 28 Apr 2025 02:06:39 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=watchOS

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:         watchOS
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-markdown’
Checking out 0.100.1 of package ‘swift-markdown’
Creating working copy of package ‘swift-cmark’
Checking out 0.100.1 of package ‘swift-cmark’
Creating working copy of package ‘MarkCodable’
Checking out 0.6.9 of package ‘MarkCodable’
Creating working copy of package ‘Pow’
Checking out 1.0.5 of package ‘Pow’
Resolve Package Graph
Resolved source packages:
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
  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
resolved source packages: Pow, swift-markdown, MarkCodable, cmark-gfm, MarkWalkthrough
{
  "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=watchOS 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=watchOS "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:
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
  MarkWalkthrough: /Users/admin/builder/spi-builder-workspace
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
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/WatchOS.platform/Developer/SDKs/WatchOS11.4.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/WatchOS.platform/Developer/SDKs/WatchOS11.4.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 armv7k -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: b66f807b993212305a185d995fba94c0
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/b66f807b993212305a185d995fba94c0.xcbuilddata
error: The package product 'MarkCodable' requires minimum platform version 6.0 for the watchOS platform, but this target supports 5.0 (in target 'MarkWalkthrough' from project 'MarkWalkthrough')
error: The package product 'Pow' requires minimum platform version 8.0 for the watchOS platform, but this target supports 5.0 (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
  Pow: https://github.com/EmergeTools/Pow @ 1.0.5
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
  swift-markdown: https://github.com/markcodable/swift-markdown.git @ 0.100.1
resolved source packages: MarkWalkthrough, Pow, MarkCodable, cmark-gfm, swift-markdown
{
  "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=watchOS
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=watchOS
Resolve Package Graph
Resolved source packages:
  MarkCodable: https://github.com/MarkCodable/MarkCodable @ 0.6.9
  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
  cmark-gfm: https://github.com/markcodable/swift-cmark.git @ 0.100.1
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/WatchOS.platform/Developer/SDKs/WatchOS11.4.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/WatchOS.platform/Developer/SDKs/WatchOS11.4.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 armv7k -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: b4f344a88ffe51a94485a04e14023501
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/b4f344a88ffe51a94485a04e14023501.xcbuilddata
error: The package product 'MarkCodable' requires minimum platform version 6.0 for the watchOS platform, but this target supports 5.0 (in target 'MarkWalkthrough' from project 'MarkWalkthrough')
error: The package product 'Pow' requires minimum platform version 8.0 for the watchOS platform, but this target supports 5.0 (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 watchOS