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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 Futures, reference 1.6.1 (f47a29), with Swift 6.0 for Linux on 27 Nov 2024 06:32:10 UTC.

Swift 6 data race errors: 1

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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: 4.58.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/davidask/Futures.git
Reference: 1.6.1
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/davidask/Futures
 * tag               1.6.1      -> FETCH_HEAD
HEAD is now at f47a292 Rename file, update discard member
Cloned https://github.com/davidask/Futures.git
Revision (git rev-parse @):
f47a292801a7d5c465e91df62da47f7139c77e72
SUCCESS checkout https://github.com/davidask/Futures.git at 1.6.1
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/davidask/Futures.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
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
[3/8] Compiling Futures PromisesExtended.swift
[4/8] Compiling Futures Promise.swift
/host/spi-builder-workspace/Sources/Futures/DispatchQueue+Futures.swift:6:16: warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
4 |
5 |     /// The default queue, on which futures are observed and executed on.
6 |     static var futures = DispatchQueue(label: "com.formbound.future.default", attributes: .concurrent)
  |                |- warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'futures' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: annotate 'futures' 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
7 | }
8 |
/host/spi-builder-workspace/Sources/Futures/Promise.swift:16:17: warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 14 |     queue.async {
 15 |         do {
 16 |             try promise.fulfill(body())
    |                 `- warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 17 |         } catch {
 18 |             promise.reject(error)
    :
 94 | ///
 95 | /// - Note: `Future` is the observable value, while `Promise` is the function that sets it.
 96 | public struct Promise<Value> {
    |               `- note: consider making generic struct 'Promise' conform to the 'Sendable' protocol
 97 |
 98 |     /// The future value of this promise.
/host/spi-builder-workspace/Sources/Futures/Promise.swift:16:33: warning: capture of 'body' with non-sendable type '() throws -> Value' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 14 |     queue.async {
 15 |         do {
 16 |             try promise.fulfill(body())
    |                                 |- warning: capture of 'body' with non-sendable type '() throws -> Value' 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'
 17 |         } catch {
 18 |             promise.reject(error)
/host/spi-builder-workspace/Sources/Futures/Promise.swift:46:17: warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 44 |         do {
 45 |             let completion = { (value: Result<Value, Error>) in
 46 |                 promise.resolve(value)
    |                 `- warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 47 |             }
 48 |
    :
 94 | ///
 95 | /// - Note: `Future` is the observable value, while `Promise` is the function that sets it.
 96 | public struct Promise<Value> {
    |               `- note: consider making generic struct 'Promise' conform to the 'Sendable' protocol
 97 |
 98 |     /// The future value of this promise.
/host/spi-builder-workspace/Sources/Futures/Promise.swift:49:17: warning: capture of 'body' with non-sendable type '(@escaping (Result<Value, any Error>) -> Void) throws -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 47 |             }
 48 |
 49 |             try body(completion)
    |                 |- warning: capture of 'body' with non-sendable type '(@escaping (Result<Value, any Error>) -> Void) throws -> 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'
 50 |         } catch {
 51 |             promise.reject(error)
/host/spi-builder-workspace/Sources/Futures/Promise.swift:46:17: warning: capture of 'promise' with non-sendable type 'Promise<Value>' in an isolated closure; this is an error in the Swift 6 language mode
 44 |         do {
 45 |             let completion = { (value: Result<Value, Error>) in
 46 |                 promise.resolve(value)
    |                 `- warning: capture of 'promise' with non-sendable type 'Promise<Value>' in an isolated closure; this is an error in the Swift 6 language mode
 47 |             }
 48 |
    :
 94 | ///
 95 | /// - Note: `Future` is the observable value, while `Promise` is the function that sets it.
 96 | public struct Promise<Value> {
    |               `- note: consider making generic struct 'Promise' conform to the 'Sendable' protocol
 97 |
 98 |     /// The future value of this promise.
[5/8] Compiling Futures AnyFuture.swift
[6/8] Compiling Futures DispatchQueue+Futures.swift
/host/spi-builder-workspace/Sources/Futures/DispatchQueue+Futures.swift:6:16: warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
4 |
5 |     /// The default queue, on which futures are observed and executed on.
6 |     static var futures = DispatchQueue(label: "com.formbound.future.default", attributes: .concurrent)
  |                |- warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'futures' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: annotate 'futures' 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
7 | }
8 |
[7/8] Compiling Futures Future.swift
/host/spi-builder-workspace/Sources/Futures/DispatchQueue+Futures.swift:6:16: warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
4 |
5 |     /// The default queue, on which futures are observed and executed on.
6 |     static var futures = DispatchQueue(label: "com.formbound.future.default", attributes: .concurrent)
  |                |- warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'futures' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: annotate 'futures' 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
7 | }
8 |
/host/spi-builder-workspace/Sources/Futures/Future.swift:67:13: warning: capture of 'self' with non-sendable type 'FutureObserver<Value>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 39 | /// - `Future<Value>.whenFulfilled()`
 40 | /// - `Future<Value>.whenRejected()`
 41 | public final class FutureObserver<Value>: AnyFutureObserver {
    |                    `- note: generic class 'FutureObserver' does not conform to the 'Sendable' protocol
 42 |
 43 |     private let callback: (Result<Value, Error>) -> Void
    :
 65 |     fileprivate func invoke(_ value: Result<Value, Error>) {
 66 |         queue.async {
 67 |             self.callback(value)
    |             `- warning: capture of 'self' with non-sendable type 'FutureObserver<Value>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 68 |         }
 69 |     }
/host/spi-builder-workspace/Sources/Futures/Future.swift:67:27: warning: capture of 'value' with non-sendable type 'Result<Value, any Error>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 39 | /// - `Future<Value>.whenFulfilled()`
 40 | /// - `Future<Value>.whenRejected()`
 41 | public final class FutureObserver<Value>: AnyFutureObserver {
    |                                   `- note: consider making generic parameter 'Value' conform to the 'Sendable' protocol
 42 |
 43 |     private let callback: (Result<Value, Error>) -> Void
    :
 65 |     fileprivate func invoke(_ value: Result<Value, Error>) {
 66 |         queue.async {
 67 |             self.callback(value)
    |                           `- warning: capture of 'value' with non-sendable type 'Result<Value, any Error>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 68 |         }
 69 |     }
[8/8] Emitting module Futures
/host/spi-builder-workspace/Sources/Futures/DispatchQueue+Futures.swift:6:16: warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
4 |
5 |     /// The default queue, on which futures are observed and executed on.
6 |     static var futures = DispatchQueue(label: "com.formbound.future.default", attributes: .concurrent)
  |                |- warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                |- note: convert 'futures' to a 'let' constant to make 'Sendable' shared state immutable
  |                |- note: annotate 'futures' 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
7 | }
8 |
Build complete! (13.09s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Futures",
  "name" : "Futures",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "2.0"
    }
  ],
  "products" : [
    {
      "name" : "Futures",
      "targets" : [
        "Futures"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FuturesTests",
      "module_type" : "SwiftTarget",
      "name" : "FuturesTests",
      "path" : "Tests/FuturesTests",
      "sources" : [
        "FuturesTests.swift"
      ],
      "target_dependencies" : [
        "Futures"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Futures",
      "module_type" : "SwiftTarget",
      "name" : "Futures",
      "path" : "Sources/Futures",
      "product_memberships" : [
        "Futures"
      ],
      "sources" : [
        "AnyFuture.swift",
        "DispatchQueue+Futures.swift",
        "Future.swift",
        "Promise.swift",
        "PromisesExtended.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Done.