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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 HTMLEntities, reference master (d8ca73), with Swift 6.1 for Linux on 26 Apr 2025 21:38:39 UTC.

Swift 6 data race errors: 4

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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/Kitura/swift-html-entities.git
Reference: master
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/Kitura/swift-html-entities
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at d8ca731 Remove .swift-version file
Cloned https://github.com/Kitura/swift-html-entities.git
Revision (git rev-parse @):
d8ca73197f59ce260c71bd6d7f6eb8bbdccf508b
SUCCESS checkout https://github.com/Kitura/swift-html-entities.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Kitura/swift-html-entities.git
https://github.com/Kitura/swift-html-entities.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "HTMLEntities",
  "name" : "HTMLEntities",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "HTMLEntities",
      "targets" : [
        "HTMLEntities"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HTMLEntitiesTests",
      "module_type" : "SwiftTarget",
      "name" : "HTMLEntitiesTests",
      "path" : "Tests/HTMLEntitiesTests",
      "sources" : [
        "HTMLEntitiesTests.swift",
        "LinuxSafeguardTest.swift"
      ],
      "target_dependencies" : [
        "HTMLEntities"
      ],
      "type" : "test"
    },
    {
      "c99name" : "HTMLEntities",
      "module_type" : "SwiftTarget",
      "name" : "HTMLEntities",
      "path" : "Sources/HTMLEntities",
      "product_memberships" : [
        "HTMLEntities"
      ],
      "sources" : [
        "Constants.swift",
        "ParseError.swift",
        "String+HTMLEntities.swift",
        "Utilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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
[3/7] Emitting module HTMLEntities
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:23:27: warning: static property 'allowUnsafeSymbols' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 21 |     struct HTMLEscapeOptions {
 22 |         /// Specifies if all ASCII characters should be skipped when escaping text
 23 |         public static var allowUnsafeSymbols = false
    |                           |- warning: static property 'allowUnsafeSymbols' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'allowUnsafeSymbols' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'allowUnsafeSymbols' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 24 |
 25 |         /// Specifies if decimal escapes should be used instead of hexadecimal escapes
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:26:27: warning: static property 'decimal' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 24 |
 25 |         /// Specifies if decimal escapes should be used instead of hexadecimal escapes
 26 |         public static var decimal = false
    |                           |- warning: static property 'decimal' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'decimal' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'decimal' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 27 |
 28 |         /// Specifies if all characters should be escaped, even if some are safe characters
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:29:27: warning: static property 'encodeEverything' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 27 |
 28 |         /// Specifies if all characters should be escaped, even if some are safe characters
 29 |         public static var encodeEverything = false
    |                           |- warning: static property 'encodeEverything' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'encodeEverything' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'encodeEverything' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 30 |
 31 |         /// Specifies if named character references should be used whenever possible
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:32:27: warning: static property 'useNamedReferences' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 30 |
 31 |         /// Specifies if named character references should be used whenever possible
 32 |         public static var useNamedReferences = false
    |                           |- warning: static property 'useNamedReferences' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'useNamedReferences' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'useNamedReferences' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 33 |     }
 34 |
[4/7] Compiling HTMLEntities Utilities.swift
[5/7] Compiling HTMLEntities ParseError.swift
[6/7] Compiling HTMLEntities Constants.swift
[7/7] Compiling HTMLEntities String+HTMLEntities.swift
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:23:27: warning: static property 'allowUnsafeSymbols' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 21 |     struct HTMLEscapeOptions {
 22 |         /// Specifies if all ASCII characters should be skipped when escaping text
 23 |         public static var allowUnsafeSymbols = false
    |                           |- warning: static property 'allowUnsafeSymbols' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'allowUnsafeSymbols' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'allowUnsafeSymbols' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 24 |
 25 |         /// Specifies if decimal escapes should be used instead of hexadecimal escapes
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:26:27: warning: static property 'decimal' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 24 |
 25 |         /// Specifies if decimal escapes should be used instead of hexadecimal escapes
 26 |         public static var decimal = false
    |                           |- warning: static property 'decimal' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'decimal' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'decimal' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 27 |
 28 |         /// Specifies if all characters should be escaped, even if some are safe characters
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:29:27: warning: static property 'encodeEverything' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 27 |
 28 |         /// Specifies if all characters should be escaped, even if some are safe characters
 29 |         public static var encodeEverything = false
    |                           |- warning: static property 'encodeEverything' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'encodeEverything' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'encodeEverything' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 30 |
 31 |         /// Specifies if named character references should be used whenever possible
/host/spi-builder-workspace/Sources/HTMLEntities/String+HTMLEntities.swift:32:27: warning: static property 'useNamedReferences' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 30 |
 31 |         /// Specifies if named character references should be used whenever possible
 32 |         public static var useNamedReferences = false
    |                           |- warning: static property 'useNamedReferences' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'useNamedReferences' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make static property 'useNamedReferences' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 33 |     }
 34 |
Build complete! (2.59s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "HTMLEntities",
  "name" : "HTMLEntities",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "HTMLEntities",
      "targets" : [
        "HTMLEntities"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HTMLEntitiesTests",
      "module_type" : "SwiftTarget",
      "name" : "HTMLEntitiesTests",
      "path" : "Tests/HTMLEntitiesTests",
      "sources" : [
        "HTMLEntitiesTests.swift",
        "LinuxSafeguardTest.swift"
      ],
      "target_dependencies" : [
        "HTMLEntities"
      ],
      "type" : "test"
    },
    {
      "c99name" : "HTMLEntities",
      "module_type" : "SwiftTarget",
      "name" : "HTMLEntities",
      "path" : "Sources/HTMLEntities",
      "product_memberships" : [
        "HTMLEntities"
      ],
      "sources" : [
        "Constants.swift",
        "ParseError.swift",
        "String+HTMLEntities.swift",
        "Utilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
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.