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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 SVGPath, reference v1.0.0 (e738fb), with Swift 6.1 for Linux on 29 Apr 2025 07:08:17 UTC.

Swift 6 data race errors: 2

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/yukiny0811/SVGPath.git
Reference: v1.0.0
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/yukiny0811/SVGPath
 * tag               v1.0.0     -> FETCH_HEAD
HEAD is now at e738fb6 Update for 1.1.5 release
Cloned https://github.com/yukiny0811/SVGPath.git
Revision (git rev-parse @):
e738fb6400d4e4d14e82c41c9d30c3908285eae9
SUCCESS checkout https://github.com/yukiny0811/SVGPath.git at v1.0.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/yukiny0811/SVGPath.git
https://github.com/yukiny0811/SVGPath.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SVGPath",
  "name" : "SVGPath",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SVGPath",
      "targets" : [
        "SVGPath"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SVGPathTests",
      "module_type" : "SwiftTarget",
      "name" : "SVGPathTests",
      "path" : "Tests",
      "sources" : [
        "CGPathTests.swift",
        "MetadataTests.swift",
        "SVGPathTests.swift"
      ],
      "target_dependencies" : [
        "SVGPath"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SVGPath",
      "module_type" : "SwiftTarget",
      "name" : "SVGPath",
      "path" : "Sources",
      "product_memberships" : [
        "SVGPath"
      ],
      "sources" : [
        "SVGPath+CoreGraphics.swift",
        "SVGPath.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/5] Compiling SVGPath SVGPath+CoreGraphics.swift
[4/5] Emitting module SVGPath
/host/spi-builder-workspace/Sources/SVGPath.swift:242:27: warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'SVGPath.WriteOptions' may have shared mutable state; this is an error in the Swift 6 language mode
239 |     }
240 |
241 |     struct WriteOptions {
    |            `- note: consider making struct 'WriteOptions' conform to the 'Sendable' protocol
242 |         public static let `default` = Self()
    |                           |- warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'SVGPath.WriteOptions' may have shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: add '@MainActor' to make static property 'default' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
243 |
244 |         public var prettyPrinted: Bool
/host/spi-builder-workspace/Sources/SVGPath.swift:490:16: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'SVGPoint' may have shared mutable state; this is an error in the Swift 6 language mode
478 | }
479 |
480 | public struct SVGPoint: Hashable {
    |               `- note: consider making struct 'SVGPoint' conform to the 'Sendable' protocol
481 |     public var x, y: Double
482 |
    :
488 |
489 | public extension SVGPoint {
490 |     static let zero = SVGPoint(x: 0, y: 0)
    |                |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'SVGPoint' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
491 |
492 |     static func + (lhs: SVGPoint, rhs: SVGPoint) -> SVGPoint {
[5/5] Compiling SVGPath SVGPath.swift
/host/spi-builder-workspace/Sources/SVGPath.swift:242:27: warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'SVGPath.WriteOptions' may have shared mutable state; this is an error in the Swift 6 language mode
239 |     }
240 |
241 |     struct WriteOptions {
    |            `- note: consider making struct 'WriteOptions' conform to the 'Sendable' protocol
242 |         public static let `default` = Self()
    |                           |- warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'SVGPath.WriteOptions' may have shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: add '@MainActor' to make static property 'default' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
243 |
244 |         public var prettyPrinted: Bool
/host/spi-builder-workspace/Sources/SVGPath.swift:490:16: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'SVGPoint' may have shared mutable state; this is an error in the Swift 6 language mode
478 | }
479 |
480 | public struct SVGPoint: Hashable {
    |               `- note: consider making struct 'SVGPoint' conform to the 'Sendable' protocol
481 |     public var x, y: Double
482 |
    :
488 |
489 | public extension SVGPoint {
490 |     static let zero = SVGPoint(x: 0, y: 0)
    |                |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'SVGPoint' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
491 |
492 |     static func + (lhs: SVGPoint, rhs: SVGPoint) -> SVGPoint {
Build complete! (5.80s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SVGPath",
  "name" : "SVGPath",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SVGPath",
      "targets" : [
        "SVGPath"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SVGPathTests",
      "module_type" : "SwiftTarget",
      "name" : "SVGPathTests",
      "path" : "Tests",
      "sources" : [
        "CGPathTests.swift",
        "MetadataTests.swift",
        "SVGPathTests.swift"
      ],
      "target_dependencies" : [
        "SVGPath"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SVGPath",
      "module_type" : "SwiftTarget",
      "name" : "SVGPath",
      "path" : "Sources",
      "product_memberships" : [
        "SVGPath"
      ],
      "sources" : [
        "SVGPath+CoreGraphics.swift",
        "SVGPath.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.