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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 LetterCase, reference master (8db2ad), with Swift 6.0 for Linux on 21 Jan 2025 00:55:04 UTC.

Swift 6 data race errors: 3

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/rwbutler/LetterCase.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/rwbutler/LetterCase
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 8db2adb Updated pods
Cloned https://github.com/rwbutler/LetterCase.git
Revision (git rev-parse @):
8db2adb8cfb9431e25ceed1a6904eda580ffd22b
SUCCESS checkout https://github.com/rwbutler/LetterCase.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/rwbutler/LetterCase.git
https://github.com/rwbutler/LetterCase.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LetterCase",
  "name" : "LetterCase",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "LetterCase",
      "targets" : [
        "LetterCase"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LetterCase",
      "module_type" : "SwiftTarget",
      "name" : "LetterCase",
      "path" : "LetterCase/Classes",
      "product_memberships" : [
        "LetterCase"
      ],
      "sources" : [
        "KeyDecodingStrategyAdditions.swift",
        "LetterCase.swift",
        "LetterCaseOptions.swift",
        "StringAdditions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/7] Emitting module LetterCase
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:13:23: warning: static property 'preserveSuffix' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
   |                       |- warning: static property 'preserveSuffix' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'preserveSuffix' 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
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:14:23: warning: static property 'preservePunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
   |                       |- warning: static property 'preservePunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'preservePunctuation' 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
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
16 |
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:15:23: warning: static property 'stripPunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'stripPunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'stripPunctuation' 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
16 |
17 |     public init(rawValue: Int) {
[4/7] Compiling LetterCase LetterCase.swift
[5/7] Compiling LetterCase LetterCaseOptions.swift
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:13:23: warning: static property 'preserveSuffix' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
   |                       |- warning: static property 'preserveSuffix' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'preserveSuffix' 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
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:14:23: warning: static property 'preservePunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
   |                       |- warning: static property 'preservePunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'preservePunctuation' 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
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
16 |
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:15:23: warning: static property 'stripPunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'stripPunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'stripPunctuation' 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
16 |
17 |     public init(rawValue: Int) {
[6/7] Compiling LetterCase StringAdditions.swift
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:15:23: warning: static property 'stripPunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'stripPunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'stripPunctuation' 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
16 |
17 |     public init(rawValue: Int) {
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:14:23: warning: static property 'preservePunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
   |                       |- warning: static property 'preservePunctuation' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'preservePunctuation' 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
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
16 |
/host/spi-builder-workspace/LetterCase/Classes/LetterCaseOptions.swift:13:23: warning: static property 'preserveSuffix' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public struct LetterCaseOptions: OptionSet {
   |               `- note: consider making struct 'LetterCaseOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int
12 |
13 |     public static let preserveSuffix       = LetterCaseOptions(rawValue: 1 << 0)
   |                       |- warning: static property 'preserveSuffix' is not concurrency-safe because non-'Sendable' type 'LetterCaseOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'preserveSuffix' 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
14 |     public static let preservePunctuation  = LetterCaseOptions(rawValue: 1 << 1)
15 |     public static let stripPunctuation     = LetterCaseOptions(rawValue: 1 << 2)
[7/7] Compiling LetterCase KeyDecodingStrategyAdditions.swift
/host/spi-builder-workspace/LetterCase/Classes/KeyDecodingStrategyAdditions.swift:65:70: warning: capture of 'letterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
 63 |                 return lastKey
 64 |             }
 65 |             let newLetterCaseKey = lastKey.stringValue.convert(from: letterCase, to: newLetterCase)
    |                                                                      `- warning: capture of 'letterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
 66 |             return AnyKey(string: newLetterCaseKey)
 67 |         }
/host/spi-builder-workspace/LetterCase/Classes/LetterCase.swift:10:13: note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
 8 | import Foundation
 9 |
10 | public enum LetterCase: String {
   |             `- note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
11 |
12 |     public typealias Options = LetterCaseOptions
/host/spi-builder-workspace/LetterCase/Classes/KeyDecodingStrategyAdditions.swift:65:86: warning: capture of 'newLetterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
 63 |                 return lastKey
 64 |             }
 65 |             let newLetterCaseKey = lastKey.stringValue.convert(from: letterCase, to: newLetterCase)
    |                                                                                      `- warning: capture of 'newLetterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
 66 |             return AnyKey(string: newLetterCaseKey)
 67 |         }
/host/spi-builder-workspace/LetterCase/Classes/LetterCase.swift:10:13: note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
 8 | import Foundation
 9 |
10 | public enum LetterCase: String {
   |             `- note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
11 |
12 |     public typealias Options = LetterCaseOptions
/host/spi-builder-workspace/LetterCase/Classes/KeyDecodingStrategyAdditions.swift:107:70: warning: capture of 'letterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
105 |                 return lastKey
106 |             }
107 |             let newLetterCaseKey = lastKey.stringValue.convert(from: letterCase, to: newLetterCase)
    |                                                                      `- warning: capture of 'letterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
108 |             return AnyKey(string: newLetterCaseKey)
109 |         }
/host/spi-builder-workspace/LetterCase/Classes/LetterCase.swift:10:13: note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
 8 | import Foundation
 9 |
10 | public enum LetterCase: String {
   |             `- note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
11 |
12 |     public typealias Options = LetterCaseOptions
/host/spi-builder-workspace/LetterCase/Classes/KeyDecodingStrategyAdditions.swift:107:86: warning: capture of 'newLetterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
105 |                 return lastKey
106 |             }
107 |             let newLetterCaseKey = lastKey.stringValue.convert(from: letterCase, to: newLetterCase)
    |                                                                                      `- warning: capture of 'newLetterCase' with non-sendable type 'LetterCase' in a `@Sendable` closure
108 |             return AnyKey(string: newLetterCaseKey)
109 |         }
/host/spi-builder-workspace/LetterCase/Classes/LetterCase.swift:10:13: note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
 8 | import Foundation
 9 |
10 | public enum LetterCase: String {
   |             `- note: consider making enum 'LetterCase' conform to the 'Sendable' protocol
11 |
12 |     public typealias Options = LetterCaseOptions
Build complete! (11.38s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LetterCase",
  "name" : "LetterCase",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "LetterCase",
      "targets" : [
        "LetterCase"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LetterCase",
      "module_type" : "SwiftTarget",
      "name" : "LetterCase",
      "path" : "LetterCase/Classes",
      "product_memberships" : [
        "LetterCase"
      ],
      "sources" : [
        "KeyDecodingStrategyAdditions.swift",
        "LetterCase.swift",
        "LetterCaseOptions.swift",
        "StringAdditions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Done.