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Build Information

Successful build of websocket-kit, reference main (fc2f84), with Swift 6.4 for macOS (SPM) on 21 Sep 2026 07:06:50 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Local-Connectivity-Lab/websocket-kit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Local-Connectivity-Lab/websocket-kit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at fc2f843 add support for musl platform
Cloned https://github.com/Local-Connectivity-Lab/websocket-kit.git
Revision (git rev-parse @):
fc2f843173e946c3f1b333c6c732dcdec5a47090
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Local-Connectivity-Lab/websocket-kit.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Local-Connectivity-Lab/websocket-kit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
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Build complete! (32.64 sec)
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/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketHandler.swift:98:13: warning: conformance of 'NIOWebSocketFrameAggregator' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
 96 |
 97 |         return channel.pipeline.addHandlers([
 98 |             NIOWebSocketFrameAggregator(
    |             `- warning: conformance of 'NIOWebSocketFrameAggregator' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
 99 |                 minNonFinalFragmentSize: config.minNonFinalFragmentSize,
100 |                 maxAccumulatedFrameCount: config.maxAccumulatedFrameCount,
NIOWebSocket.NIOWebSocketFrameAggregator:2:11: note: conformance of 'NIOWebSocketFrameAggregator' to 'Sendable' has been explicitly marked unavailable here
1 | @available(*, unavailable)
2 | extension NIOWebSocketFrameAggregator : Sendable {
  |           `- note: conformance of 'NIOWebSocketFrameAggregator' to 'Sendable' has been explicitly marked unavailable here
3 | }
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketClient.swift:213:85: warning: type 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
211 |                     completionHandler: { _ in
212 |                         upgradePromise.succeed(())
213 |                         channel.pipeline.removeHandler(httpUpgradeRequestHandlerBox.value, promise: nil)
    |                                                                                     `- warning: type 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
214 |                     }
215 |                 )
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/HTTPUpgradeRequestHandler.swift:4:13: note: class 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
 2 | import NIOHTTP1
 3 |
 4 | final class HTTPUpgradeRequestHandler: ChannelInboundHandler, RemovableChannelHandler {
   |             `- note: class 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
 5 |     typealias InboundIn = HTTPClientResponsePart
 6 |     typealias OutboundOut = HTTPClientRequestPart
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketClient.swift:273:60: warning: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
271 |
272 |                 proxyEstablishedPromise.futureResult.flatMap {
273 |                     channel.pipeline.removeHandler(decoder.value)
    |                                                            `- warning: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
274 |                 }.flatMap {
275 |                     channel.pipeline.removeHandler(encoder.value)
NIOCore.ByteToMessageHandler:2:11: note: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' has been explicitly marked unavailable here
1 | @available(*, unavailable)
2 | extension ByteToMessageHandler : Sendable {
  |           `- note: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' has been explicitly marked unavailable here
3 | }
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketClient.swift:275:60: warning: conformance of 'HTTPRequestEncoder' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
273 |                     channel.pipeline.removeHandler(decoder.value)
274 |                 }.flatMap {
275 |                     channel.pipeline.removeHandler(encoder.value)
    |                                                            `- warning: conformance of 'HTTPRequestEncoder' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
276 |                 }.flatMap {
277 |                     if let maxQueueSize = maxQueueSize {
NIOHTTP1.HTTPRequestEncoder:2:11: note: conformance of 'HTTPRequestEncoder' to 'Sendable' has been explicitly marked unavailable here
1 | @available(*, unavailable)
2 | extension HTTPRequestEncoder : Sendable {
  |           `- note: conformance of 'HTTPRequestEncoder' to 'Sendable' has been explicitly marked unavailable here
3 | }
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketClient.swift:213:85: warning: type 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
211 |                     completionHandler: { _ in
212 |                         upgradePromise.succeed(())
213 |                         channel.pipeline.removeHandler(httpUpgradeRequestHandlerBox.value, promise: nil)
    |                                                                                     `- warning: type 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
214 |                     }
215 |                 )
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/HTTPUpgradeRequestHandler.swift:4:13: note: class 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
 2 | import NIOHTTP1
 3 |
 4 | final class HTTPUpgradeRequestHandler: ChannelInboundHandler, RemovableChannelHandler {
   |             `- note: class 'HTTPUpgradeRequestHandler' does not conform to the 'Sendable' protocol
 5 |     typealias InboundIn = HTTPClientResponsePart
 6 |     typealias OutboundOut = HTTPClientRequestPart
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketClient.swift:273:60: warning: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
271 |
272 |                 proxyEstablishedPromise.futureResult.flatMap {
273 |                     channel.pipeline.removeHandler(decoder.value)
    |                                                            `- warning: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
274 |                 }.flatMap {
275 |                     channel.pipeline.removeHandler(encoder.value)
NIOCore.ByteToMessageHandler:2:11: note: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' has been explicitly marked unavailable here
1 | @available(*, unavailable)
2 | extension ByteToMessageHandler : Sendable {
  |           `- note: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' has been explicitly marked unavailable here
3 | }
/Users/admin/builder/spi-builder-workspace/Sources/WebSocketKit/WebSocketClient.swift:275:60: warning: conformance of 'HTTPRequestEncoder' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
273 |                     channel.pipeline.removeHandler(decoder.value)
274 |                 }.flatMap {
275 |                     channel.pipeline.removeHandler(encoder.value)
    |                                                            `- warning: conformance of 'HTTPRequestEncoder' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode
276 |                 }.flatMap {
277 |                     if let maxQueueSize = maxQueueSize {
NIOHTTP1.HTTPRequestEncoder:2:11: note: conformance of 'HTTPRequestEncoder' to 'Sendable' has been explicitly marked unavailable here
1 | @available(*, unavailable)
2 | extension HTTPRequestEncoder : Sendable {
  |           `- note: conformance of 'HTTPRequestEncoder' to 'Sendable' has been explicitly marked unavailable here
3 | }
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-nio",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.73.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-nio.git"
    },
    {
      "identity" : "swift-nio-extras",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.16.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-nio-extras.git"
    },
    {
      "identity" : "swift-nio-ssl",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.24.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-nio-ssl.git"
    },
    {
      "identity" : "swift-nio-transport-services",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.16.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-nio-transport-services.git"
    },
    {
      "identity" : "swift-atomics",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-atomics.git"
    }
  ],
  "manifest_display_name" : "websocket-kit",
  "name" : "websocket-kit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "WebSocketKit",
      "targets" : [
        "WebSocketKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "WebSocketKitTests",
      "module_type" : "SwiftTarget",
      "name" : "WebSocketKitTests",
      "path" : "Tests/WebSocketKitTests",
      "sources" : [
        "AsyncWebSocketKitTests.swift",
        "SSLTestHelpers.swift",
        "Utilities.swift",
        "WebSocketKitTests.swift"
      ],
      "target_dependencies" : [
        "WebSocketKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "WebSocketKit",
      "module_type" : "SwiftTarget",
      "name" : "WebSocketKit",
      "path" : "Sources/WebSocketKit",
      "product_dependencies" : [
        "NIOCore",
        "NIOConcurrencyHelpers",
        "NIOExtras",
        "NIOFoundationCompat",
        "NIOHTTP1",
        "NIOSSL",
        "NIOWebSocket",
        "NIOTransportServices",
        "Atomics"
      ],
      "product_memberships" : [
        "WebSocketKit"
      ],
      "sources" : [
        "Concurrency/WebSocket+Concurrency.swift",
        "Exports.swift",
        "HTTPUpgradeRequestHandler.swift",
        "WebSocket+ChannelOption.swift",
        "WebSocket+Connect.swift",
        "WebSocket+SocketOptions.swift",
        "WebSocket.swift",
        "WebSocketClient.swift",
        "WebSocketHandler.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Done.