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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

Successful build of CanonicalPackageURL, reference 1.0.0 (f7dc7d), with Swift 6.1 for macOS (SPM) on 1 May 2025 07:50:18 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats

Build Log

========================================
RunAll
========================================
Builder version: 4.61.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/SwiftPackageIndex/CanonicalPackageURL.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SwiftPackageIndex/CanonicalPackageURL
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at f7dc7d4 Merge pull request #10 from SwiftPackageIndex/swift-6
Cloned https://github.com/SwiftPackageIndex/CanonicalPackageURL.git
Revision (git rev-parse @):
f7dc7d49061fef2d347dabc532fb587fad17cc32
SUCCESS checkout https://github.com/SwiftPackageIndex/CanonicalPackageURL.git at 1.0.0
Fetching https://github.com/pointfreeco/swift-case-paths.git from cache
Fetched https://github.com/pointfreeco/swift-case-paths.git from cache (0.45s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
Fetching https://github.com/pointfreeco/swift-parsing.git from cache
Fetched https://github.com/pointfreeco/swift-parsing.git from cache (0.61s)
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.61s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.5.2 (1.14s)
Computing version for https://github.com/pointfreeco/swift-parsing.git
Computed https://github.com/pointfreeco/swift-parsing.git at 0.14.1 (0.48s)
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.5.2
Creating working copy for https://github.com/pointfreeco/swift-case-paths.git
Working copy of https://github.com/pointfreeco/swift-case-paths.git resolved at 1.0.0 (5da6989)
Creating working copy for https://github.com/pointfreeco/swift-parsing.git
Working copy of https://github.com/pointfreeco/swift-parsing.git resolved at 0.14.1
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "canonicalpackageurl",
      "name": "CanonicalPackageURL",
      "url": "https://github.com/SwiftPackageIndex/CanonicalPackageURL.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/CanonicalPackageURL",
      "dependencies": [
        {
          "identity": "swift-parsing",
          "name": "swift-parsing",
          "url": "https://github.com/pointfreeco/swift-parsing.git",
          "version": "0.14.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-parsing",
          "dependencies": [
            {
              "identity": "swift-case-paths",
              "name": "swift-case-paths",
              "url": "https://github.com/pointfreeco/swift-case-paths",
              "version": "1.7.0",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-case-paths",
              "dependencies": [
                {
                  "identity": "swift-syntax",
                  "name": "swift-syntax",
                  "url": "https://github.com/swiftlang/swift-syntax",
                  "version": "601.0.1",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-syntax",
                  "dependencies": [
                  ]
                },
                {
                  "identity": "xctest-dynamic-overlay",
                  "name": "xctest-dynamic-overlay",
                  "url": "https://github.com/pointfreeco/xctest-dynamic-overlay",
                  "version": "1.5.2",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xctest-dynamic-overlay",
                  "dependencies": [
                  ]
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/SwiftPackageIndex/CanonicalPackageURL.git
[1/168] Fetching canonicalpackageurl
Fetched https://github.com/SwiftPackageIndex/CanonicalPackageURL.git from cache (0.56s)
Fetching https://github.com/pointfreeco/swift-parsing.git from cache
Fetched https://github.com/pointfreeco/swift-parsing.git from cache (0.49s)
Computing version for https://github.com/pointfreeco/swift-parsing.git
Computed https://github.com/pointfreeco/swift-parsing.git at 0.14.1 (0.54s)
Fetching https://github.com/pointfreeco/swift-case-paths from cache
Fetched https://github.com/pointfreeco/swift-case-paths from cache (0.45s)
Computing version for https://github.com/pointfreeco/swift-case-paths
Computed https://github.com/pointfreeco/swift-case-paths at 1.7.0 (1.20s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
Fetching https://github.com/swiftlang/swift-syntax from cache
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.41s)
Fetched https://github.com/swiftlang/swift-syntax from cache (1.03s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.5.2 (1.10s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 601.0.1 (0.67s)
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 601.0.1
Creating working copy for https://github.com/pointfreeco/swift-case-paths
Working copy of https://github.com/pointfreeco/swift-case-paths resolved at 1.7.0
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.5.2
Creating working copy for https://github.com/pointfreeco/swift-parsing.git
Working copy of https://github.com/pointfreeco/swift-parsing.git resolved at 0.14.1
Creating working copy for https://github.com/SwiftPackageIndex/CanonicalPackageURL.git
Working copy of https://github.com/SwiftPackageIndex/CanonicalPackageURL.git resolved at 1.0.0 (f7dc7d4)
warning: '.resolve-product-dependencies': dependency 'canonicalpackageurl' is not used by any target
Found 1 product dependencies
  - swift-parsing
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/SwiftPackageIndex/CanonicalPackageURL.git
https://github.com/SwiftPackageIndex/CanonicalPackageURL.git
{
  "dependencies" : [
    {
      "identity" : "swift-case-paths",
      "requirement" : {
        "revision" : [
          "1.0.0"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-case-paths.git"
    },
    {
      "identity" : "swift-parsing",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-parsing.git"
    }
  ],
  "manifest_display_name" : "CanonicalPackageURL",
  "name" : "CanonicalPackageURL",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "CanonicalPackageURL",
      "targets" : [
        "CanonicalPackageURL"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CanonicalPackageURLTests",
      "module_type" : "SwiftTarget",
      "name" : "CanonicalPackageURLTests",
      "path" : "Tests/CanonicalPackageURLTests",
      "sources" : [
        "CanonicalPackageURLTests.swift",
        "PublicInterfaceTests.swift"
      ],
      "target_dependencies" : [
        "CanonicalPackageURL"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CanonicalPackageURL",
      "module_type" : "SwiftTarget",
      "name" : "CanonicalPackageURL",
      "path" : "Sources/CanonicalPackageURL",
      "product_dependencies" : [
        "Parsing"
      ],
      "product_memberships" : [
        "CanonicalPackageURL"
      ],
      "sources" : [
        "CanonicalPackageURL.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats
Building for debugging...
[0/6] Write sources
[5/6] Write swift-version-2F0A5646E1D333AE.txt
[7/25] Compiling IssueReporting TestContext.swift
[8/25] Compiling IssueReporting Unimplemented.swift
[9/25] Compiling IssueReporting IsTesting.swift
[10/25] Compiling IssueReporting IssueReporter.swift
[11/25] Compiling IssueReporting LockIsolated.swift
[12/25] Compiling IssueReporting Rethrows.swift
[13/25] Compiling IssueReporting SwiftTesting.swift
[14/25] Compiling IssueReporting UncheckedSendable.swift
[15/25] Compiling IssueReporting Warn.swift
[16/25] Compiling IssueReporting XCTest.swift
[17/25] Compiling IssueReporting BreakpointReporter.swift
[18/25] Compiling IssueReporting FatalErrorReporter.swift
[19/25] Compiling IssueReporting ErrorReporting.swift
[20/25] Compiling IssueReporting AppHostWarning.swift
[21/25] Emitting module IssueReporting
[22/25] Compiling IssueReporting Deprecations.swift
[23/25] Compiling IssueReporting FailureObserver.swift
[24/25] Compiling IssueReporting RuntimeWarningReporter.swift
[25/25] Compiling IssueReporting ReportIssue.swift
[26/27] Compiling IssueReporting WithExpectedIssue.swift
[27/27] Compiling IssueReporting WithIssueContext.swift
[28/30] Emitting module XCTestDynamicOverlay
[29/30] Compiling XCTestDynamicOverlay Exports.swift
[30/30] Compiling XCTestDynamicOverlay Deprecations.swift
[31/38] Compiling CasePaths XCTUnwrap.swift
[32/38] Compiling CasePaths TypeName.swift
[33/38] Compiling CasePaths Operators.swift
[34/38] Compiling CasePaths OpenExistential.swift
[35/38] Compiling CasePaths CasePath.swift
[36/38] Compiling CasePaths CasePaths.swift
[37/38] Emitting module CasePaths
[38/38] Compiling CasePaths EnumReflection.swift
[39/107] Compiling Parsing Enum.swift
[40/107] Compiling Parsing FixedWidthInteger.swift
[41/107] Compiling Parsing Identity.swift
[42/107] Compiling Parsing JSON.swift
[43/107] Compiling Parsing LosslessStringConvertible.swift
[44/107] Compiling Parsing Memberwise.swift
[45/107] Compiling Parsing ParseableFormatStyleConversion.swift
[46/107] Compiling Parsing RawRepresentable.swift
[47/114] Compiling Parsing Not.swift
[48/114] Compiling Parsing OneOf.swift
[49/114] Compiling Parsing OneOfMany.swift
[50/114] Compiling Parsing Optional.swift
[51/114] Compiling Parsing Optionally.swift
[52/114] Compiling Parsing Parse.swift
[53/114] Compiling Parsing ParseableFormatStyle.swift
[54/114] Compiling Parsing OneOfBuilder.swift
[55/114] Compiling Parsing ParserBuilder.swift
[56/114] Compiling Parsing Conversion.swift
[57/114] Compiling Parsing AnyConversion.swift
[58/114] Compiling Parsing BinaryFloatingPoint.swift
[59/114] Compiling Parsing ConversionMap.swift
[60/114] Compiling Parsing Conversions.swift
[61/114] Compiling Parsing Data.swift
[62/114] Compiling Parsing Parser.swift
[63/114] Compiling Parsing ParserPrinter.swift
[64/114] Compiling Parsing Always.swift
[65/114] Compiling Parsing AnyParserPrinter.swift
[66/114] Compiling Parsing Backtracking.swift
[67/114] Compiling Parsing Bool.swift
[68/114] Compiling Parsing CaseIterableRawRepresentable.swift
[69/114] Compiling Parsing CharacterSet.swift
[70/114] Compiling Parsing ReplaceError.swift
[71/114] Compiling Parsing Rest.swift
[72/114] Compiling Parsing Skip.swift
[73/114] Compiling Parsing StartsWith.swift
[74/114] Compiling Parsing UUID.swift
[75/114] Compiling Parsing Whitespace.swift
[76/114] Compiling Parsing AnyParser.swift
[77/114] Compiling Parsing String.swift
[78/114] Compiling Parsing Substring.swift
[79/114] Compiling Parsing UTF8View.swift
[80/114] Compiling Parsing ConvertingError.swift
[81/114] Compiling Parsing CountingRange.swift
[82/114] Compiling Parsing EmptyInitializable.swift
[83/114] Compiling Parsing AnyEquatable.swift
[84/114] Compiling Parsing Deprecations.swift
[85/114] Compiling Parsing Peek.swift
[86/114] Compiling Parsing Pipe.swift
[87/114] Compiling Parsing Prefix.swift
[88/114] Compiling Parsing PrefixThrough.swift
[89/114] Compiling Parsing PrefixUpTo.swift
[90/114] Compiling Parsing Printing.swift
[91/114] Compiling Parsing Pullback.swift
[92/114] Compiling Parsing Conditional.swift
[93/114] Compiling Parsing Consumed.swift
[94/114] Compiling Parsing Digits.swift
[95/114] Compiling Parsing End.swift
[96/114] Compiling Parsing Fail.swift
[97/114] Compiling Parsing Filter.swift
[98/114] Compiling Parsing First.swift
[99/114] Compiling Parsing Float.swift
[100/114] Compiling Parsing From.swift
[101/114] Compiling Parsing Int.swift
[102/114] Compiling Parsing Lazy.swift
[103/114] Compiling Parsing Literal.swift
[104/114] Compiling Parsing Many.swift
[105/114] Compiling Parsing Map.swift
[106/114] Compiling Parsing Newline.swift
[107/114] Emitting module Parsing
[108/114] Compiling Parsing CompactMap.swift
[109/114] Compiling Parsing FlatMap.swift
[110/114] Compiling Parsing Parsers.swift
[111/114] Compiling Parsing Stream.swift
[112/114] Compiling Parsing ParsingError.swift
[113/114] Compiling Parsing PrependableCollection.swift
[114/114] Compiling Parsing PrintingError.swift
[115/116] Emitting module CanonicalPackageURL
[116/116] Compiling CanonicalPackageURL CanonicalPackageURL.swift
Build complete! (11.90s)
warning: 'spi-builder-workspace': dependency 'swift-case-paths' is not used by any target
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-case-paths",
      "requirement" : {
        "revision" : [
          "1.0.0"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-case-paths.git"
    },
    {
      "identity" : "swift-parsing",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.12.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-parsing.git"
    }
  ],
  "manifest_display_name" : "CanonicalPackageURL",
  "name" : "CanonicalPackageURL",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "CanonicalPackageURL",
      "targets" : [
        "CanonicalPackageURL"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CanonicalPackageURLTests",
      "module_type" : "SwiftTarget",
      "name" : "CanonicalPackageURLTests",
      "path" : "Tests/CanonicalPackageURLTests",
      "sources" : [
        "CanonicalPackageURLTests.swift",
        "PublicInterfaceTests.swift"
      ],
      "target_dependencies" : [
        "CanonicalPackageURL"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CanonicalPackageURL",
      "module_type" : "SwiftTarget",
      "name" : "CanonicalPackageURL",
      "path" : "Sources/CanonicalPackageURL",
      "product_dependencies" : [
        "Parsing"
      ],
      "product_memberships" : [
        "CanonicalPackageURL"
      ],
      "sources" : [
        "CanonicalPackageURL.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.