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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 BigInt with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 4

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
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Clone URL: https://github.com/Boilertalk/BigInt.swift.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Boilertalk/BigInt.swift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 4c25294 Add deprecation warning
Cloned https://github.com/Boilertalk/BigInt.swift.git
Revision (git rev-parse @):
4c25294ed1b8c816f12241cb4a66dbf3d571b8d2
SUCCESS checkout https://github.com/Boilertalk/BigInt.swift.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/Boilertalk/BigInt.swift.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...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
[3/23] Compiling BigInt Shifts.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[4/23] Compiling BigInt SquareRoot.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[5/25] Compiling BigInt Subtraction.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[6/25] Compiling BigInt WordsAndBits.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[7/25] Compiling BigInt BitwiseOps.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[8/25] Compiling BigInt Codable.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[9/25] Compiling BigInt Comparable.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[10/25] Compiling BigInt IntegerConversion.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Multiplication.swift:84:23: warning: static property 'directMultiplicationLimit' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 82 |
 83 |     /// Multiplication switches to an asymptotically better recursive algorithm when arguments have more words than this limit.
 84 |     public static var directMultiplicationLimit: Int = 1024
    |                       |- warning: static property 'directMultiplicationLimit' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'directMultiplicationLimit' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'directMultiplicationLimit' 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
 85 |
 86 |     /// Multiply `a` by `b` and return the result.
[11/25] Compiling BigInt Multiplication.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Multiplication.swift:84:23: warning: static property 'directMultiplicationLimit' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 82 |
 83 |     /// Multiplication switches to an asymptotically better recursive algorithm when arguments have more words than this limit.
 84 |     public static var directMultiplicationLimit: Int = 1024
    |                       |- warning: static property 'directMultiplicationLimit' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'directMultiplicationLimit' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'directMultiplicationLimit' 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
 85 |
 86 |     /// Multiply `a` by `b` and return the result.
[12/25] Compiling BigInt PrimeTest.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/PrimeTest.swift:18:5: warning: let 'pseudoPrimes' is not concurrency-safe because non-'Sendable' type '[BigUInt]' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | ///
 17 | /// This is sequence [A014233](http://oeis.org/A014233) on the [Online Encyclopaedia of Integer Sequences](http://oeis.org).
 18 | let pseudoPrimes: [BigUInt] = [
    |     |- warning: let 'pseudoPrimes' is not concurrency-safe because non-'Sendable' type '[BigUInt]' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate 'pseudoPrimes' 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
 19 |     /*  2 */ 2_047,
 20 |     /*  3 */ 1_373_653,
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:16:15: note: consider making struct 'BigUInt' conform to the 'Sendable' protocol
 14 | /// This particular big integer type uses base-2^64 digits to represent integers; you can think of it as a wrapper
 15 | /// around `Array<UInt64>`. (In fact, `BigUInt` only uses an array if there are more than two digits.)
 16 | public struct BigUInt: UnsignedInteger {
    |               `- note: consider making struct 'BigUInt' conform to the 'Sendable' protocol
 17 |     /// The type representing a digit in `BigUInt`'s underlying number system.
 18 |     public typealias Word = UInt
[13/25] Compiling BigInt Random.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/PrimeTest.swift:18:5: warning: let 'pseudoPrimes' is not concurrency-safe because non-'Sendable' type '[BigUInt]' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | ///
 17 | /// This is sequence [A014233](http://oeis.org/A014233) on the [Online Encyclopaedia of Integer Sequences](http://oeis.org).
 18 | let pseudoPrimes: [BigUInt] = [
    |     |- warning: let 'pseudoPrimes' is not concurrency-safe because non-'Sendable' type '[BigUInt]' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate 'pseudoPrimes' 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
 19 |     /*  2 */ 2_047,
 20 |     /*  3 */ 1_373_653,
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:16:15: note: consider making struct 'BigUInt' conform to the 'Sendable' protocol
 14 | /// This particular big integer type uses base-2^64 digits to represent integers; you can think of it as a wrapper
 15 | /// around `Array<UInt64>`. (In fact, `BigUInt` only uses an array if there are more than two digits.)
 16 | public struct BigUInt: UnsignedInteger {
    |               `- note: consider making struct 'BigUInt' conform to the 'Sendable' protocol
 17 |     /// The type representing a digit in `BigUInt`'s underlying number system.
 18 |     public typealias Word = UInt
[14/25] Compiling BigInt Addition.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[15/25] Compiling BigInt BigInt.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[16/25] Compiling BigInt BigUInt.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[17/25] Compiling BigInt Strideable.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[18/25] Compiling BigInt StringConversion.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[19/25] Compiling BigInt Exponentiation.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[20/25] Compiling BigInt FloatingPointConversion.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[21/25] Compiling BigInt GCD.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Hashable.swift:15:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigUInt' to 'Hashable' by implementing 'hash(into:)' instead
13 |     //MARK: Hashing
14 |
15 |     public var hashValue: Int {
   |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigUInt' to 'Hashable' by implementing 'hash(into:)' instead
16 |         let words = self.words.map({ Int(bitPattern: $0) })
17 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Hashable.swift:27:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigInt' to 'Hashable' by implementing 'hash(into:)' instead
25 | extension BigInt: Hashable {
26 |
27 |     public var hashValue: Int {
   |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigInt' to 'Hashable' by implementing 'hash(into:)' instead
28 |         var words = self.words.map({ Int(bitPattern: $0) })
29 |
[22/25] Compiling BigInt Hashable.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Hashable.swift:15:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigUInt' to 'Hashable' by implementing 'hash(into:)' instead
13 |     //MARK: Hashing
14 |
15 |     public var hashValue: Int {
   |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigUInt' to 'Hashable' by implementing 'hash(into:)' instead
16 |         let words = self.words.map({ Int(bitPattern: $0) })
17 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Hashable.swift:27:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigInt' to 'Hashable' by implementing 'hash(into:)' instead
25 | extension BigInt: Hashable {
26 |
27 |     public var hashValue: Int {
   |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigInt' to 'Hashable' by implementing 'hash(into:)' instead
28 |         var words = self.words.map({ Int(bitPattern: $0) })
29 |
[23/25] Compiling BigInt DataConversion.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[24/25] Compiling BigInt Division.swift
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
[25/25] Emitting module BigInt
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:30:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 28 |     }
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
 32 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:31:14: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 29 |
 30 |     internal fileprivate (set) var kind: Kind // Internal for testing only
 31 |     internal fileprivate (set) var storage: [Word] // Internal for testing only; stored separately to prevent COW copies
    |              `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 32 |
 33 |     /// Initializes a new BigUInt with value 0.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Hashable.swift:15:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigUInt' to 'Hashable' by implementing 'hash(into:)' instead
13 |     //MARK: Hashing
14 |
15 |     public var hashValue: Int {
   |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigUInt' to 'Hashable' by implementing 'hash(into:)' instead
16 |         let words = self.words.map({ Int(bitPattern: $0) })
17 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Hashable.swift:27:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigInt' to 'Hashable' by implementing 'hash(into:)' instead
25 | extension BigInt: Hashable {
26 |
27 |     public var hashValue: Int {
   |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'BigInt' to 'Hashable' by implementing 'hash(into:)' instead
28 |         var words = self.words.map({ Int(bitPattern: $0) })
29 |
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/Multiplication.swift:84:23: warning: static property 'directMultiplicationLimit' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 82 |
 83 |     /// Multiplication switches to an asymptotically better recursive algorithm when arguments have more words than this limit.
 84 |     public static var directMultiplicationLimit: Int = 1024
    |                       |- warning: static property 'directMultiplicationLimit' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'directMultiplicationLimit' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'directMultiplicationLimit' 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
 85 |
 86 |     /// Multiply `a` by `b` and return the result.
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/PrimeTest.swift:18:5: warning: let 'pseudoPrimes' is not concurrency-safe because non-'Sendable' type '[BigUInt]' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | ///
 17 | /// This is sequence [A014233](http://oeis.org/A014233) on the [Online Encyclopaedia of Integer Sequences](http://oeis.org).
 18 | let pseudoPrimes: [BigUInt] = [
    |     |- warning: let 'pseudoPrimes' is not concurrency-safe because non-'Sendable' type '[BigUInt]' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate 'pseudoPrimes' 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
 19 |     /*  2 */ 2_047,
 20 |     /*  3 */ 1_373_653,
/Users/admin/builder/spi-builder-workspace/BigInt/Classes/BigUInt.swift:16:15: note: consider making struct 'BigUInt' conform to the 'Sendable' protocol
 14 | /// This particular big integer type uses base-2^64 digits to represent integers; you can think of it as a wrapper
 15 | /// around `Array<UInt64>`. (In fact, `BigUInt` only uses an array if there are more than two digits.)
 16 | public struct BigUInt: UnsignedInteger {
    |               `- note: consider making struct 'BigUInt' conform to the 'Sendable' protocol
 17 |     /// The type representing a digit in `BigUInt`'s underlying number system.
 18 |     public typealias Word = UInt
Build complete! (19.28s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "BigInt",
  "name" : "BigInt",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "BigInt",
      "targets" : [
        "BigInt"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BigIntTests",
      "module_type" : "SwiftTarget",
      "name" : "BigIntTests",
      "path" : "Tests/BigIntTests",
      "sources" : [
        "BigIntTests.swift",
        "BigUIntTests.swift",
        "ProfileTests.swift",
        "Tools.swift",
        "WordTests.swift"
      ],
      "target_dependencies" : [
        "BigInt"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BigInt",
      "module_type" : "SwiftTarget",
      "name" : "BigInt",
      "path" : "BigInt/Classes",
      "product_memberships" : [
        "BigInt"
      ],
      "sources" : [
        "Addition.swift",
        "BigInt.swift",
        "BigUInt.swift",
        "BitwiseOps.swift",
        "Codable.swift",
        "Comparable.swift",
        "DataConversion.swift",
        "Division.swift",
        "Exponentiation.swift",
        "FloatingPointConversion.swift",
        "GCD.swift",
        "Hashable.swift",
        "IntegerConversion.swift",
        "Multiplication.swift",
        "PrimeTest.swift",
        "Random.swift",
        "Shifts.swift",
        "SquareRoot.swift",
        "Strideable.swift",
        "StringConversion.swift",
        "Subtraction.swift",
        "WordsAndBits.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.