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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 UInt256, reference master (53950a), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 01:48:48 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hyugit/UInt256.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/hyugit/UInt256
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 53950a7 update metadata
Cloned https://github.com/hyugit/UInt256.git
Revision (git rev-parse @):
53950a76fe56f3cb27074dcdb1f534ec28a8483f
SUCCESS checkout https://github.com/hyugit/UInt256.git at master
========================================
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": "uint256",
      "name": "UInt256",
      "url": "https://github.com/hyugit/UInt256.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/UInt256",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/hyugit/UInt256.git
[1/574] Fetching uint256
Fetched https://github.com/hyugit/UInt256.git from cache (0.80s)
Creating working copy for https://github.com/hyugit/UInt256.git
Working copy of https://github.com/hyugit/UInt256.git resolved at master (53950a7)
warning: '.resolve-product-dependencies': dependency 'uint256' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/hyugit/UInt256.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/17] Compiling UInt256 UInt256+Equatable.swift
[4/17] Compiling UInt256 UInt256+ExpressibleByIntegerLiteral.swift
[5/18] Compiling UInt256 UInt256.swift
[6/18] Emitting module UInt256
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:7:23: warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 5 | extension UInt256: UnsignedInteger {
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
   |                       |- warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'max' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'max' 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
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
 9 |
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:8:23: warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
   |                       |- warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'min' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'min' 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
 9 |
10 |     public var magnitude: UInt256 {
[7/18] Compiling UInt256 UInt256+arc4random.swift
[8/18] Compiling UInt256 UInt256+Numeric.swift
[9/18] Compiling UInt256 UInt256+UnsignedInteger.swift
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:7:23: warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 5 | extension UInt256: UnsignedInteger {
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
   |                       |- warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'max' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'max' 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
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
 9 |
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:8:23: warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
   |                       |- warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'min' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'min' 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
 9 |
10 |     public var magnitude: UInt256 {
[10/18] Compiling UInt256 UInt256+CustomStringConvertible.swift
[11/18] Compiling UInt256 UInt256+Divide&Conquer.swift
[12/18] Compiling UInt256 UInt256+Karatsuba.swift
[13/18] Compiling UInt256 UInt256+BinaryInteger.swift
[14/18] Compiling UInt256 UInt256+Comparable.swift
[15/18] Compiling UInt256 FixedWidthInteger+BarrettDivision.swift
[16/18] Compiling UInt256 FixedWidthInteger+LongDivision.swift
[17/18] Compiling UInt256 UInt256+FixedWidthInteger.swift
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:7:23: warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 5 | extension UInt256: UnsignedInteger {
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
   |                       |- warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'max' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'max' 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
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
 9 |
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:8:23: warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
   |                       |- warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'min' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'min' 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
 9 |
10 |     public var magnitude: UInt256 {
[18/18] Compiling UInt256 UInt256+Hashable.swift
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:7:23: warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 5 | extension UInt256: UnsignedInteger {
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
   |                       |- warning: static property 'max' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'max' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'max' 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
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
 9 |
/Users/admin/builder/spi-builder-workspace/Sources/UInt256+UnsignedInteger.swift:8:23: warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 6 |
 7 |     public static var max = UInt256([UInt64.max, UInt64.max, UInt64.max, UInt64.max])
 8 |     public static var min = UInt256([UInt64.min, UInt64.min, UInt64.min, UInt64.min])
   |                       |- warning: static property 'min' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'min' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'min' 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
 9 |
10 |     public var magnitude: UInt256 {
Build complete! (14.01s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "UInt256",
  "name" : "UInt256",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "UInt256",
      "targets" : [
        "UInt256"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "UInt256Tests",
      "module_type" : "SwiftTarget",
      "name" : "UInt256Tests",
      "path" : "Tests",
      "sources" : [
        "Arithmetics.swift",
        "BinaryOperations.swift",
        "LinuxMain.swift",
        "PerformanceTests.swift",
        "UInt256Tests.swift"
      ],
      "target_dependencies" : [
        "UInt256"
      ],
      "type" : "test"
    },
    {
      "c99name" : "UInt256",
      "module_type" : "SwiftTarget",
      "name" : "UInt256",
      "path" : "Sources",
      "product_memberships" : [
        "UInt256"
      ],
      "sources" : [
        "FixedWidthInteger+BarrettDivision.swift",
        "FixedWidthInteger+LongDivision.swift",
        "UInt256+BinaryInteger.swift",
        "UInt256+Comparable.swift",
        "UInt256+CustomStringConvertible.swift",
        "UInt256+Divide&Conquer.swift",
        "UInt256+Equatable.swift",
        "UInt256+ExpressibleByIntegerLiteral.swift",
        "UInt256+FixedWidthInteger.swift",
        "UInt256+Hashable.swift",
        "UInt256+Karatsuba.swift",
        "UInt256+Numeric.swift",
        "UInt256+UnsignedInteger.swift",
        "UInt256+arc4random.swift",
        "UInt256.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Done.