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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 HTTPClient, reference 0.6.0 (abee15), with Swift 6.1 for Linux on 26 Apr 2025 18:26:48 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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/uhooi/swift-http-client.git
Reference: 0.6.0
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/uhooi/swift-http-client
 * tag               0.6.0      -> FETCH_HEAD
HEAD is now at abee158 Merge pull request #25 from uhooi/hotfix/fix_deploy_cocoapods
Cloned https://github.com/uhooi/swift-http-client.git
Revision (git rev-parse @):
abee158d4edcc63583eb574ec64b43ebada1b070
SUCCESS checkout https://github.com/uhooi/swift-http-client.git at 0.6.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/uhooi/swift-http-client.git
https://github.com/uhooi/swift-http-client.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "HTTPClient",
  "name" : "HTTPClient",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "HTTPClient",
      "targets" : [
        "HTTPClient"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HTTPClientTests",
      "module_type" : "SwiftTarget",
      "name" : "HTTPClientTests",
      "path" : "Tests/HTTPClientTests",
      "sources" : [
        "HTTPClientTests.swift"
      ],
      "target_dependencies" : [
        "HTTPClient"
      ],
      "type" : "test"
    },
    {
      "c99name" : "HTTPClient",
      "module_type" : "SwiftTarget",
      "name" : "HTTPClient",
      "path" : "Sources/HTTPClient",
      "product_memberships" : [
        "HTTPClient"
      ],
      "sources" : [
        "Enums/ContentType.swift",
        "Enums/HTTPHeaderField.swift",
        "Enums/HTTPMethod.swift",
        "Enums/RequestError.swift",
        "Extensions/Foundation/URLSession+Async.swift",
        "HTTPClient.swift",
        "Request.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$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...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/10] Compiling HTTPClient Request.swift
[4/10] Compiling HTTPClient HTTPMethod.swift
[5/10] Compiling HTTPClient RequestError.swift
[6/10] Compiling HTTPClient HTTPClient.swift
/host/spi-builder-workspace/Sources/HTTPClient/HTTPClient.swift:124:17: warning: capture of 'completion' with non-sendable type '(Result<T.ResponseBody, any Error>) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
122 |         URLSession.shared.dataTask(with: request) { data, response, error in
123 |             if let error = error {
124 |                 completion(.failure(error))
    |                 |- warning: capture of 'completion' with non-sendable type '(Result<T.ResponseBody, any Error>) -> Void' 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'
125 |                 return
126 |             }
/host/spi-builder-workspace/Sources/HTTPClient/HTTPClient.swift:127:35: warning: capture of 'self' with non-sendable type 'HTTPClient' in a '@Sendable' closure; this is an error in the Swift 6 language mode
  5 |
  6 | /// HTTP client.
  7 | public final class HTTPClient {
    |                    `- note: class 'HTTPClient' does not conform to the 'Sendable' protocol
  8 |
  9 |     // MARK: Stored Instance Properties
    :
125 |                 return
126 |             }
127 |             if let requestError = self.validateResponse(response) {
    |                                   `- warning: capture of 'self' with non-sendable type 'HTTPClient' in a '@Sendable' closure; this is an error in the Swift 6 language mode
128 |                 completion(.failure(requestError))
129 |                 return
[7/10] Compiling HTTPClient URLSession+Async.swift
[8/10] Compiling HTTPClient ContentType.swift
[9/10] Compiling HTTPClient HTTPHeaderField.swift
[10/10] Emitting module HTTPClient
Build complete! (11.43s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "HTTPClient",
  "name" : "HTTPClient",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "HTTPClient",
      "targets" : [
        "HTTPClient"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HTTPClientTests",
      "module_type" : "SwiftTarget",
      "name" : "HTTPClientTests",
      "path" : "Tests/HTTPClientTests",
      "sources" : [
        "HTTPClientTests.swift"
      ],
      "target_dependencies" : [
        "HTTPClient"
      ],
      "type" : "test"
    },
    {
      "c99name" : "HTTPClient",
      "module_type" : "SwiftTarget",
      "name" : "HTTPClient",
      "path" : "Sources/HTTPClient",
      "product_memberships" : [
        "HTTPClient"
      ],
      "sources" : [
        "Enums/ContentType.swift",
        "Enums/HTTPHeaderField.swift",
        "Enums/HTTPMethod.swift",
        "Enums/RequestError.swift",
        "Extensions/Foundation/URLSession+Async.swift",
        "HTTPClient.swift",
        "Request.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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.