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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 ZEGBot, reference develop (a2308c), with Swift 6.1 for Linux on 27 Apr 2025 07:02:56 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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/shaneqi/zegbot.git
Reference: develop
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/shaneqi/zegbot
 * branch            develop    -> FETCH_HEAD
 * [new branch]      develop    -> origin/develop
HEAD is now at a2308c9 Merge branch 'release/4.2.8' into develop
Cloned https://github.com/shaneqi/zegbot.git
Revision (git rev-parse @):
a2308c974db45846b42f1f615d1531358e4d4162
SUCCESS checkout https://github.com/shaneqi/zegbot.git at develop
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/shaneqi/zegbot.git
https://github.com/shaneqi/zegbot.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ZEGBot",
  "name" : "ZEGBot",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ZEGBot",
      "targets" : [
        "ZEGBot"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "ZEGBotExample",
      "targets" : [
        "ZEGBotExample"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "ZEGBotTests",
      "module_type" : "SwiftTarget",
      "name" : "ZEGBotTests",
      "path" : "Tests/ZEGBotTests",
      "sources" : [
        "ZEGBotTests.swift"
      ],
      "target_dependencies" : [
        "ZEGBot"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ZEGBotExample",
      "module_type" : "SwiftTarget",
      "name" : "ZEGBotExample",
      "path" : "Example",
      "product_memberships" : [
        "ZEGBotExample"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "ZEGBot"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ZEGBot",
      "module_type" : "SwiftTarget",
      "name" : "ZEGBot",
      "path" : "Sources",
      "product_memberships" : [
        "ZEGBot",
        "ZEGBotExample"
      ],
      "sources" : [
        "Extensions.swift",
        "HelperTypes.swift",
        "Methods.swift",
        "Network.swift",
        "Sending.swift",
        "Types.swift",
        "Updating.swift",
        "Utilities.swift",
        "ZEGBot.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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...
[0/7] Write sources
[2/7] Write swift-version-24593BA9C3E375BF.txt
[4/16] Compiling ZEGBot Extensions.swift
[5/16] Compiling ZEGBot HelperTypes.swift
[6/16] Emitting module ZEGBot
[7/16] Compiling ZEGBot Methods.swift
[8/17] Compiling ZEGBot Network.swift
/host/spi-builder-workspace/Sources/Network.swift:49:5: warning: capture of 'result' with non-sendable type 'Result<Output>?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 47 | 		let task = URLSession(configuration: .default).dataTask(with: request) { data, _, error in
 48 | 			if let data = data {
 49 | 				result = Result<Output>.decode(from: data)
    |     `- warning: capture of 'result' with non-sendable type 'Result<Output>?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 50 | 			} else {
 51 | 				result = .failure(error!)
/host/spi-builder-workspace/Sources/Utilities.swift:11:13: note: consider making generic enum 'Result' conform to the 'Sendable' protocol
 9 | import Foundation
10 |
11 | public enum Result<T>: Decodable where T: Decodable {
   |             `- note: consider making generic enum 'Result' conform to the 'Sendable' protocol
12 |
13 | 	case success(T)
/host/spi-builder-workspace/Sources/Network.swift:49:5: warning: mutation of captured var 'result' in concurrently-executing code; this is an error in the Swift 6 language mode
 47 | 		let task = URLSession(configuration: .default).dataTask(with: request) { data, _, error in
 48 | 			if let data = data {
 49 | 				result = Result<Output>.decode(from: data)
    |     `- warning: mutation of captured var 'result' in concurrently-executing code; this is an error in the Swift 6 language mode
 50 | 			} else {
 51 | 				result = .failure(error!)
/host/spi-builder-workspace/Sources/Network.swift:51:5: warning: mutation of captured var 'result' in concurrently-executing code; this is an error in the Swift 6 language mode
 49 | 				result = Result<Output>.decode(from: data)
 50 | 			} else {
 51 | 				result = .failure(error!)
    |     `- warning: mutation of captured var 'result' in concurrently-executing code; this is an error in the Swift 6 language mode
 52 | 			}
 53 | 			semaphore.signal()
[9/17] Compiling ZEGBot Sending.swift
[10/17] Compiling ZEGBot Types.swift
[11/17] Compiling ZEGBot Updating.swift
[12/17] Compiling ZEGBot Utilities.swift
[13/17] Compiling ZEGBot ZEGBot.swift
/host/spi-builder-workspace/Sources/ZEGBot.swift:53:6: warning: capture of 'handler' with non-sendable type 'UpdatesHandler' (aka '(Array<Update>, ZEGBot) -> ()') in a '@Sendable' closure; this is an error in the Swift 6 language mode
51 | 						}
52 | 					}
53 | 					handler(updates, self)
   |      |- warning: capture of 'handler' with non-sendable type 'UpdatesHandler' (aka '(Array<Update>, ZEGBot) -> ()') in a '@Sendable' closure; this is an error in the Swift 6 language mode
   |      `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
54 | 				case .failure(let error):
55 | 					encounterError = error
/host/spi-builder-workspace/Sources/ZEGBot.swift:53:23: warning: capture of 'self' with non-sendable type 'ZEGBot' in a '@Sendable' closure; this is an error in the Swift 6 language mode
17 | public typealias UpdatesHandler = ([Update], ZEGBot) -> Void
18 |
19 | public struct ZEGBot {
   |               `- note: consider making struct 'ZEGBot' conform to the 'Sendable' protocol
20 |
21 | 	internal let session = URLSession(configuration: .default)
   :
51 | 						}
52 | 					}
53 | 					handler(updates, self)
   |                       `- warning: capture of 'self' with non-sendable type 'ZEGBot' in a '@Sendable' closure; this is an error in the Swift 6 language mode
54 | 				case .failure(let error):
55 | 					encounterError = error
/host/spi-builder-workspace/Sources/ZEGBot.swift:37:6: warning: mutation of captured var 'encounterError' in concurrently-executing code; this is an error in the Swift 6 language mode
35 | 			with: URL(string: urlPrefix + "getupdates?timeout=60&offset=\(offset)")!) { data, _, error in
36 | 				guard let data = data else {
37 | 					encounterError = error!
   |      `- warning: mutation of captured var 'encounterError' in concurrently-executing code; this is an error in the Swift 6 language mode
38 | 					semaphore.signal()
39 | 					return
/host/spi-builder-workspace/Sources/ZEGBot.swift:50:8: warning: mutation of captured var 'offset' in concurrently-executing code; this is an error in the Swift 6 language mode
48 | 								.callbackQuery(updateId: let updateId, _),
49 | 								.unimplemented(updateId: let updateId):
50 | 							offset = updateId + 1
   |        `- warning: mutation of captured var 'offset' in concurrently-executing code; this is an error in the Swift 6 language mode
51 | 						}
52 | 					}
/host/spi-builder-workspace/Sources/ZEGBot.swift:55:6: warning: mutation of captured var 'encounterError' in concurrently-executing code; this is an error in the Swift 6 language mode
53 | 					handler(updates, self)
54 | 				case .failure(let error):
55 | 					encounterError = error
   |      `- warning: mutation of captured var 'encounterError' in concurrently-executing code; this is an error in the Swift 6 language mode
56 | 				}
57 | 				semaphore.signal()
[14/18] Wrapping AST for ZEGBot for debugging
[16/20] Compiling ZEGBotExample main.swift
[17/20] Emitting module ZEGBotExample
[18/21] Wrapping AST for ZEGBotExample for debugging
[19/21] Write Objects.LinkFileList
[20/21] Linking ZEGBotExample
Build complete! (8.49s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ZEGBot",
  "name" : "ZEGBot",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ZEGBot",
      "targets" : [
        "ZEGBot"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "ZEGBotExample",
      "targets" : [
        "ZEGBotExample"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "ZEGBotTests",
      "module_type" : "SwiftTarget",
      "name" : "ZEGBotTests",
      "path" : "Tests/ZEGBotTests",
      "sources" : [
        "ZEGBotTests.swift"
      ],
      "target_dependencies" : [
        "ZEGBot"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ZEGBotExample",
      "module_type" : "SwiftTarget",
      "name" : "ZEGBotExample",
      "path" : "Example",
      "product_memberships" : [
        "ZEGBotExample"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "ZEGBot"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ZEGBot",
      "module_type" : "SwiftTarget",
      "name" : "ZEGBot",
      "path" : "Sources",
      "product_memberships" : [
        "ZEGBot",
        "ZEGBotExample"
      ],
      "sources" : [
        "Extensions.swift",
        "HelperTypes.swift",
        "Methods.swift",
        "Network.swift",
        "Sending.swift",
        "Types.swift",
        "Updating.swift",
        "Utilities.swift",
        "ZEGBot.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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.