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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 MathParser, reference master (2e067f), with Swift 6.1 for iOS using Xcode 16.3 on 24 Apr 2025 15:10:01 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/davedelong/DDMathParser.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/davedelong/DDMathParser
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 2e067fc Correct factorial implementation for integers > 20
Cloned https://github.com/davedelong/DDMathParser.git
Revision (git rev-parse @):
2e067fc17c36f4298649b6681d52286fe4ca388e
SUCCESS checkout https://github.com/davedelong/DDMathParser.git at master
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/davedelong/DDMathParser.git
https://github.com/davedelong/DDMathParser.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MathParser",
  "name" : "MathParser",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "MathParser",
      "targets" : [
        "MathParser"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MathParserTests",
      "module_type" : "SwiftTarget",
      "name" : "MathParserTests",
      "path" : "MathParser/Tests/MathParserTests",
      "sources" : [
        "EvaluatorTests.swift",
        "ExpressionTests.swift",
        "GithubIssues.swift",
        "GroupingTests.swift",
        "ResolverTests.swift",
        "RewriterTests.swift",
        "TestHelpers.swift",
        "TokenizerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "MathParser"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MathParser",
      "module_type" : "SwiftTarget",
      "name" : "MathParser",
      "path" : "MathParser/Sources/MathParser",
      "product_memberships" : [
        "MathParser"
      ],
      "sources" : [
        "Character.swift",
        "Configuration.swift",
        "DecimalNumberExtractor.swift",
        "Deprecations.swift",
        "Double.swift",
        "DynamicResolution.swift",
        "Either.swift",
        "Evaluator.swift",
        "ExponentExtractor.swift",
        "Expression+Matching.swift",
        "Expression.swift",
        "ExpressionRewriter.swift",
        "Expressionizer.swift",
        "FractionNumberExtractor.swift",
        "Function.swift",
        "FunctionSet.swift",
        "Functions+Defaults.swift",
        "GroupedToken.swift",
        "HexNumberExtractor.swift",
        "IdentifierExtractor.swift",
        "LocalizedNumberExtractor.swift",
        "MathParserErrors.swift",
        "OctalNumberExtractor.swift",
        "Operator+Defaults.swift",
        "Operator.swift",
        "OperatorExtractor.swift",
        "OperatorSet.swift",
        "OperatorTokenSet.swift",
        "PeekingIterator.swift",
        "QuotedVariableExtractor.swift",
        "RawToken.swift",
        "ResolvedToken.swift",
        "RewriteRule+Defaults.swift",
        "RewriteRule.swift",
        "String.swift",
        "SubstitutionExtensions.swift",
        "TokenCharacterBuffer.swift",
        "TokenExtractor.swift",
        "TokenGrouper.swift",
        "TokenResolver.swift",
        "Tokenizer.swift",
        "VariableExtractor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MathParser",
  "name" : "MathParser",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "MathParser",
      "targets" : [
        "MathParser"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MathParserTests",
      "module_type" : "SwiftTarget",
      "name" : "MathParserTests",
      "path" : "MathParser/Tests/MathParserTests",
      "sources" : [
        "EvaluatorTests.swift",
        "ExpressionTests.swift",
        "GithubIssues.swift",
        "GroupingTests.swift",
        "ResolverTests.swift",
        "RewriterTests.swift",
        "TestHelpers.swift",
        "TokenizerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "MathParser"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MathParser",
      "module_type" : "SwiftTarget",
      "name" : "MathParser",
      "path" : "MathParser/Sources/MathParser",
      "product_memberships" : [
        "MathParser"
      ],
      "sources" : [
        "Character.swift",
        "Configuration.swift",
        "DecimalNumberExtractor.swift",
        "Deprecations.swift",
        "Double.swift",
        "DynamicResolution.swift",
        "Either.swift",
        "Evaluator.swift",
        "ExponentExtractor.swift",
        "Expression+Matching.swift",
        "Expression.swift",
        "ExpressionRewriter.swift",
        "Expressionizer.swift",
        "FractionNumberExtractor.swift",
        "Function.swift",
        "FunctionSet.swift",
        "Functions+Defaults.swift",
        "GroupedToken.swift",
        "HexNumberExtractor.swift",
        "IdentifierExtractor.swift",
        "LocalizedNumberExtractor.swift",
        "MathParserErrors.swift",
        "OctalNumberExtractor.swift",
        "Operator+Defaults.swift",
        "Operator.swift",
        "OperatorExtractor.swift",
        "OperatorSet.swift",
        "OperatorTokenSet.swift",
        "PeekingIterator.swift",
        "QuotedVariableExtractor.swift",
        "RawToken.swift",
        "ResolvedToken.swift",
        "RewriteRule+Defaults.swift",
        "RewriteRule.swift",
        "String.swift",
        "SubstitutionExtensions.swift",
        "TokenCharacterBuffer.swift",
        "TokenExtractor.swift",
        "TokenGrouper.swift",
        "TokenResolver.swift",
        "Tokenizer.swift",
        "VariableExtractor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Demo",
    "schemes" : [
      "Demo"
    ],
    "targets" : [
      "Demo"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Demo -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 Demo -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
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Demo' in project 'Demo' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/usr/bin/ibtool --version --output-format xml1
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/usr/bin/actool --print-asset-tag-combinations --output-format xml1 /Users/admin/builder/spi-builder-workspace/Demo/Assets.xcassets
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/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 6ea1214bf29706100484daefb7c7587d
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/6ea1214bf29706100484daefb7c7587d.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Demo.xcodeproj: warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 12.0 to 18.4.99. (in target 'Demo' from project 'Demo')
/Users/admin/builder/spi-builder-workspace/Demo.xcodeproj: error: No profiles for 'com.davedelong.MathParser.Demo' were found: Xcode couldn't find any iOS App Development provisioning profiles matching 'com.davedelong.MathParser.Demo'. Automatic signing is disabled and unable to generate a profile. To enable automatic signing, pass -allowProvisioningUpdates to xcodebuild. (in target 'Demo' from project 'Demo')
/Users/admin/builder/spi-builder-workspace/Demo.xcodeproj: error: Missing package product 'MathParser' (in target 'Demo' from project 'Demo')
** BUILD FAILED **
The following build commands failed:
	Building project Demo with scheme Demo
(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
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MathParser",
  "name" : "MathParser",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "MathParser",
      "targets" : [
        "MathParser"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MathParserTests",
      "module_type" : "SwiftTarget",
      "name" : "MathParserTests",
      "path" : "MathParser/Tests/MathParserTests",
      "sources" : [
        "EvaluatorTests.swift",
        "ExpressionTests.swift",
        "GithubIssues.swift",
        "GroupingTests.swift",
        "ResolverTests.swift",
        "RewriterTests.swift",
        "TestHelpers.swift",
        "TokenizerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "MathParser"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MathParser",
      "module_type" : "SwiftTarget",
      "name" : "MathParser",
      "path" : "MathParser/Sources/MathParser",
      "product_memberships" : [
        "MathParser"
      ],
      "sources" : [
        "Character.swift",
        "Configuration.swift",
        "DecimalNumberExtractor.swift",
        "Deprecations.swift",
        "Double.swift",
        "DynamicResolution.swift",
        "Either.swift",
        "Evaluator.swift",
        "ExponentExtractor.swift",
        "Expression+Matching.swift",
        "Expression.swift",
        "ExpressionRewriter.swift",
        "Expressionizer.swift",
        "FractionNumberExtractor.swift",
        "Function.swift",
        "FunctionSet.swift",
        "Functions+Defaults.swift",
        "GroupedToken.swift",
        "HexNumberExtractor.swift",
        "IdentifierExtractor.swift",
        "LocalizedNumberExtractor.swift",
        "MathParserErrors.swift",
        "OctalNumberExtractor.swift",
        "Operator+Defaults.swift",
        "Operator.swift",
        "OperatorExtractor.swift",
        "OperatorSet.swift",
        "OperatorTokenSet.swift",
        "PeekingIterator.swift",
        "QuotedVariableExtractor.swift",
        "RawToken.swift",
        "ResolvedToken.swift",
        "RewriteRule+Defaults.swift",
        "RewriteRule.swift",
        "String.swift",
        "SubstitutionExtensions.swift",
        "TokenCharacterBuffer.swift",
        "TokenExtractor.swift",
        "TokenGrouper.swift",
        "TokenResolver.swift",
        "Tokenizer.swift",
        "VariableExtractor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Demo",
    "schemes" : [
      "Demo"
    ],
    "targets" : [
      "Demo"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Demo -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 Demo -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Demo' in project 'Demo' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/usr/bin/ibtool --version --output-format xml1
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/usr/bin/actool --print-asset-tag-combinations --output-format xml1 /Users/admin/builder/spi-builder-workspace/Demo/Assets.xcassets
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/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: ffa912b8896a920f5f5cfd82e6e00742
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ffa912b8896a920f5f5cfd82e6e00742.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Demo.xcodeproj: warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 12.0 to 18.4.99. (in target 'Demo' from project 'Demo')
/Users/admin/builder/spi-builder-workspace/Demo.xcodeproj: error: No profiles for 'com.davedelong.MathParser.Demo' were found: Xcode couldn't find any iOS App Development provisioning profiles matching 'com.davedelong.MathParser.Demo'. Automatic signing is disabled and unable to generate a profile. To enable automatic signing, pass -allowProvisioningUpdates to xcodebuild. (in target 'Demo' from project 'Demo')
/Users/admin/builder/spi-builder-workspace/Demo.xcodeproj: error: Missing package product 'MathParser' (in target 'Demo' from project 'Demo')
** BUILD FAILED **
The following build commands failed:
	Building project Demo with scheme Demo
(1 failure)
BUILD FAILURE 6.1 iOS