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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 SwiftCalc with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/schwa/SwiftCalc.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/schwa/SwiftCalc
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at fb31571 Remove code cov to fix buildkite.
Cloned https://github.com/schwa/SwiftCalc.git
Revision (git rev-parse @):
fb31571bf338526f50478897027ac9747b7acaa7
SUCCESS checkout https://github.com/schwa/SwiftCalc.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/schwa/SwiftCalc.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/3] Write sources
[1/3] Write swift-version-6F35C1178C84523A.txt
[2/3] Compiling parser parser.c
[4/8] Compiling SwiftCalc Math.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCalc/Math.swift:32:16: warning: static property 'all' is not concurrency-safe because non-'Sendable' type '[Function]' may have shared mutable state; this is an error in the Swift 6 language mode
30 | public extension Math {
31 |
32 |     static let all = [
   |                |- warning: static property 'all' is not concurrency-safe because non-'Sendable' type '[Function]' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'all' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |         Function("sin") { parameters in
34 |             return try .number(Darwin.sin(parameters.doubles.onlyElement))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCalc/SwiftCalc.swift:44:15: note: consider making struct 'Function' conform to the 'Sendable' protocol
 42 | }
 43 |
 44 | public struct Function: Identifiable {
    |               `- note: consider making struct 'Function' conform to the 'Sendable' protocol
 45 |     public let id: String
 46 |     public let closure: ([Value]) throws -> Value
[5/8] Compiling SwiftCalc SwiftCalc.swift
[6/8] Compiling SwiftCalc Introspection.swift
[7/8] Compiling SwiftCalc AttributedString.swift
<unknown>:0: warning: cannot form key path that captures non-sendable type 'KeyPath<AttributeScopes.SwiftUIAttributes, AttributeScopes.SwiftUIAttributes.ForegroundColorAttribute>'; this is an error in the Swift 6 language mode
<unknown>:0: warning: cannot form key path that captures non-sendable type 'KeyPath<AttributeScopes.SwiftUIAttributes, AttributeScopes.SwiftUIAttributes.ForegroundColorAttribute>'; this is an error in the Swift 6 language mode
<unknown>:0: warning: cannot form key path that captures non-sendable type 'KeyPath<AttributeScopes.SwiftUIAttributes, AttributeScopes.SwiftUIAttributes.ForegroundColorAttribute>'; this is an error in the Swift 6 language mode
<unknown>:0: warning: cannot form key path that captures non-sendable type 'KeyPath<AttributeScopes.SwiftUIAttributes, AttributeScopes.SwiftUIAttributes.ForegroundColorAttribute>'; this is an error in the Swift 6 language mode
Swift.KeyPath:1:14: note: generic class 'KeyPath' does not conform to the 'Sendable' protocol
1 | public class KeyPath<Root, Value> : PartialKeyPath<Root> {
  |              |- note: generic class 'KeyPath' does not conform to the 'Sendable' protocol
  |              |- note: generic class 'KeyPath' does not conform to the 'Sendable' protocol
  |              |- note: generic class 'KeyPath' does not conform to the 'Sendable' protocol
  |              `- note: generic class 'KeyPath' does not conform to the 'Sendable' protocol
2 |     deinit
3 | }
[8/8] Emitting module SwiftCalc
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCalc/Math.swift:32:16: warning: static property 'all' is not concurrency-safe because non-'Sendable' type '[Function]' may have shared mutable state; this is an error in the Swift 6 language mode
30 | public extension Math {
31 |
32 |     static let all = [
   |                |- warning: static property 'all' is not concurrency-safe because non-'Sendable' type '[Function]' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'all' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |         Function("sin") { parameters in
34 |             return try .number(Darwin.sin(parameters.doubles.onlyElement))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCalc/SwiftCalc.swift:44:15: note: consider making struct 'Function' conform to the 'Sendable' protocol
 42 | }
 43 |
 44 | public struct Function: Identifiable {
    |               `- note: consider making struct 'Function' conform to the 'Sendable' protocol
 45 |     public let id: String
 46 |     public let closure: ([Value]) throws -> Value
Build complete! (30.72s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftCalc",
  "name" : "SwiftCalc",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftCalc",
      "targets" : [
        "SwiftCalc"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "parser",
      "module_type" : "ClangTarget",
      "name" : "parser",
      "path" : "Sources/parser",
      "product_memberships" : [
        "SwiftCalc"
      ],
      "sources" : [
        "parser.c"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SwiftCalcTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCalcTests",
      "path" : "Tests/SwiftCalcTests",
      "sources" : [
        "SwiftCalcTests.swift"
      ],
      "target_dependencies" : [
        "SwiftCalc"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftCalc",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCalc",
      "path" : "Sources/SwiftCalc",
      "product_memberships" : [
        "SwiftCalc"
      ],
      "sources" : [
        "AttributedString.swift",
        "Introspection.swift",
        "Math.swift",
        "SwiftCalc.swift"
      ],
      "target_dependencies" : [
        "parser"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.