Swift Package IndexBuild Information
Successful build of NWWebSocket, reference 0.5.10 (3d3b8a), with Swift 6.1 for macOS (SPM) on 5 Mar 2026 23:47:11 UTC.
Swift 6 data race errors: 1
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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 InferSendableFromCapturesBuild Log
========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pusher/NWWebSocket.git
Reference: 0.5.10
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pusher/NWWebSocket
* tag 0.5.10 -> FETCH_HEAD
HEAD is now at 3d3b8a2 Fix ENODATA and unrecognised POSIX errors not treated as disconnections
Cloned https://github.com/pusher/NWWebSocket.git
Revision (git rev-parse @):
3d3b8a24b17a0f079195031ca86af117fc158bef
SUCCESS checkout https://github.com/pusher/NWWebSocket.git at 0.5.10
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/pusher/NWWebSocket.git
https://github.com/pusher/NWWebSocket.git
{
"dependencies" : [
],
"manifest_display_name" : "NWWebSocket",
"name" : "NWWebSocket",
"path" : "/Users/admin/builder/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" : "NWWebSocket",
"targets" : [
"NWWebSocket"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "NWWebSocketTests",
"module_type" : "SwiftTarget",
"name" : "NWWebSocketTests",
"path" : "Tests/NWWebSocketTests",
"sources" : [
"NWWebSocketTests.swift",
"Server/NWServerConnection.swift",
"Server/NWWebSocketServer.swift",
"XCTestManifests.swift"
],
"target_dependencies" : [
"NWWebSocket"
],
"type" : "test"
},
{
"c99name" : "NWWebSocket",
"module_type" : "SwiftTarget",
"name" : "NWWebSocket",
"path" : "Sources/NWWebSocket",
"product_memberships" : [
"NWWebSocket"
],
"sources" : [
"Extension/NWConnection+Extension.swift",
"Model/Client/NWWebSocket.swift",
"Protocol/WebSocketConnection.swift"
],
"type" : "library"
}
],
"tools_version" : "5.1"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/6] Compiling NWWebSocket NWWebSocket.swift
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:145:13: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
143 | connection = NWConnection(to: endpoint, using: parameters)
144 | connection?.stateUpdateHandler = { [weak self] state in
145 | self?.stateDidChange(to: state)
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
146 | }
147 | connection?.betterPathUpdateHandler = { [weak self] isAvailable in
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:148:13: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
146 | }
147 | connection?.betterPathUpdateHandler = { [weak self] isAvailable in
148 | self?.betterPath(isAvailable: isAvailable)
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
149 | }
150 | connection?.viabilityUpdateHandler = { [weak self] isViable in
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:151:13: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
149 | }
150 | connection?.viabilityUpdateHandler = { [weak self] isViable in
151 | self?.viabilityDidChange(isViable: isViable)
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
152 | }
153 | listen()
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:186:30: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
184 |
185 | connection?.receiveMessage { [weak self] (data, context, _, error) in
186 | guard let self = self else {
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
187 | return
188 | }
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:211:30: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
209 |
210 | pingTimer = .scheduledTimer(withTimeInterval: interval, repeats: true) { [weak self] _ in
211 | guard let self = self else {
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
212 | return
213 | }
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:224:30: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
222 | let metadata = NWProtocolWebSocket.Metadata(opcode: .ping)
223 | metadata.setPongHandler(connectionQueue) { [weak self] error in
224 | guard let self = self else {
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
225 | return
226 | }
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:349:30: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
347 | connection = NWConnection(to: endpoint, using: parameters)
348 | connection?.stateUpdateHandler = { [weak self] state in
349 | guard let self = self else { return }
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
350 | self.stateDidChange(to: state)
351 |
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:355:17: warning: capture of 'completionHandler' with non-sendable type '(Result<any WebSocketConnection, NWError>) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
353 | switch state {
354 | case .ready:
355 | completionHandler(.success(self))
| |- warning: capture of 'completionHandler' with non-sendable type '(Result<any WebSocketConnection, NWError>) -> 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'
356 | case .failed(let error):
357 | completionHandler(.failure(error))
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:363:13: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
361 | }
362 | connection?.betterPathUpdateHandler = { [weak self] isAvailable in
363 | self?.betterPath(isAvailable: isAvailable)
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
364 | }
365 | connection?.viabilityUpdateHandler = { [weak self] isViable in
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:366:13: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
364 | }
365 | connection?.viabilityUpdateHandler = { [weak self] isViable in
366 | self?.viabilityDidChange(isViable: isViable)
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
367 | }
368 | listen()
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:425:30: warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
3 |
4 | /// A WebSocket client that manages a socket connection.
5 | open class NWWebSocket: WebSocketConnection {
| `- note: class 'NWWebSocket' does not conform to the 'Sendable' protocol
6 |
7 | // MARK: - Public properties
:
423 | isComplete: true,
424 | completion: .contentProcessed({ [weak self] error in
425 | guard let self = self else {
| `- warning: capture of 'self' with non-sendable type 'NWWebSocket?' in a '@Sendable' closure
426 | return
427 | }
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Model/Client/NWWebSocket.swift:503:40: warning: reference to captured var 'connectionToTearDown' in concurrently-executing code
501 | // Small delay to let any in-flight callbacks complete
502 | DispatchQueue.global().asyncAfter(deadline: .now() + 0.1) {
503 | guard let connection = connectionToTearDown else { return }
| `- warning: reference to captured var 'connectionToTearDown' in concurrently-executing code
504 |
505 | // Only cancel if not already cancelled
[4/6] Compiling NWWebSocket NWConnection+Extension.swift
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Extension/NWConnection+Extension.swift:3:17: warning: var '_intentionalDisconnection' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1 | import Network
2 |
3 | fileprivate var _intentionalDisconnection: Bool = false
| |- warning: var '_intentionalDisconnection' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_intentionalDisconnection' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var '_intentionalDisconnection' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
4 |
5 | internal extension NWConnection {
[5/6] Emitting module NWWebSocket
/Users/admin/builder/spi-builder-workspace/Sources/NWWebSocket/Extension/NWConnection+Extension.swift:3:17: warning: var '_intentionalDisconnection' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1 | import Network
2 |
3 | fileprivate var _intentionalDisconnection: Bool = false
| |- warning: var '_intentionalDisconnection' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_intentionalDisconnection' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var '_intentionalDisconnection' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
4 |
5 | internal extension NWConnection {
[6/6] Compiling NWWebSocket WebSocketConnection.swift
Build complete! (3.48s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "NWWebSocket",
"name" : "NWWebSocket",
"path" : "/Users/admin/builder/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" : "NWWebSocket",
"targets" : [
"NWWebSocket"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "NWWebSocketTests",
"module_type" : "SwiftTarget",
"name" : "NWWebSocketTests",
"path" : "Tests/NWWebSocketTests",
"sources" : [
"NWWebSocketTests.swift",
"Server/NWServerConnection.swift",
"Server/NWWebSocketServer.swift",
"XCTestManifests.swift"
],
"target_dependencies" : [
"NWWebSocket"
],
"type" : "test"
},
{
"c99name" : "NWWebSocket",
"module_type" : "SwiftTarget",
"name" : "NWWebSocket",
"path" : "Sources/NWWebSocket",
"product_memberships" : [
"NWWebSocket"
],
"sources" : [
"Extension/NWConnection+Extension.swift",
"Model/Client/NWWebSocket.swift",
"Protocol/WebSocketConnection.swift"
],
"type" : "library"
}
],
"tools_version" : "5.1"
}
Done.