NIOAsyncWebSockets – Build Information

Build Information

Successful build of NIOAsyncWebSockets, reference main (308eff), with Swift 6.4 for macOS (SPM) on 19 Sep 2026 23:02:41 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

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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/samalone/nio-async-websockets.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/samalone/nio-async-websockets
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 308eff3 Add link to API documentation
Cloned https://github.com/samalone/nio-async-websockets.git
Revision (git rev-parse @):
308eff3b3b05d492398e8b2d775bf804c64ec138
SUCCESS checkout https://github.com/samalone/nio-async-websockets.git at main
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Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/samalone/nio-async-websockets.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 808]
[Planning deferred tasks]
[148 / 306] swift-nio_NIOPosix
[150 / 306]
[166 / 311] CNIOWindows
[180 / 344]
[199 / 355] _NIOBase64
[211 / 378]
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[266 / 404] InternalCollectionsUtilities
[275 / 404]
[285 / 406] CNIOLLHTTP
[290 / 419]
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[303 / 419]
[311 / 419] _NIOBase64
[322 / 419] NIOConcurrencyHelpers
[328 / 419] _NIODataStructures
[339 / 420]
[343 / 431] ContainersPreview
[361 / 431] ContainersPreview
[363 / 432] DequeModule
[372 / 443] DequeModule
[374 / 443] DequeModule
[376 / 443] DequeModule
[385 / 444] NIOCore
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[400 / 461] NIOCore
[401 / 461] NIOCore
[402 / 461] NIOCore
[402 / 461] CNIOAtomics
[404 / 461] NIOCore
[414 / 463] NIOEmbedded
[418 / 467] NIOPosix
[435 / 496] NIOEmbedded
[436 / 496]
[441 / 496]
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[455 / 496] NIOPosix
[456 / 496] NIOPosix
[462 / 497] NIOPosix
[464 / 499] NIO
[472 / 500] NIOPosix
[472 / 500] NIOHTTP1
[483 / 512] NIOHTTP1
[484 / 512] NIOHTTP1
[491 / 513] NIOHTTP1
[491 / 513] NIOWebSocket
[503 / 525] NIOWebSocket
[504 / 525] NIOWebSocket
[512 / 526] NIOAsyncWebSockets
[521 / 562]
[523 / 562]
[531 / 562] NIOHTTP1
[534 / 562]
[537 / 562]
[540 / 562]
[542 / 562]
[543 / 562]
[553 / 562] NIOAsyncWebSockets
Build complete! (18.15 sec)
Fetching https://github.com/apple/swift-nio.git
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Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.103.0
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Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
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Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
/Users/admin/builder/spi-builder-workspace/Sources/NIOAsyncWebSockets/NIOTypedHTTPServerUpgradeHandler.swift:324:49: [1;33mwarning: [1;39mconformance of 'HTTPResponseEncoder' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode[0;0m
[0;36m322 |[0;0m             self.sendUpgradeResponse(context: context, responseHeaders: responseHeaders)
[0;36m323 |[0;0m         }.flatMap {
[0;36m324 |[0;0m             context.pipeline.removeHandler(self.httpEncoder)
    [0;36m|[0;0m                                                 `- [1;33mwarning: [1;39mconformance of 'HTTPResponseEncoder' to 'Sendable' is unavailable; this is an error in the Swift 6 language mode[0;0m
[0;36m325 |[0;0m         }.flatMap { () -> EventLoopFuture<UpgradeResult> in
[0;36m326 |[0;0m             return upgrader.upgrade(channel: context.channel, upgradeRequest: requestHead)
NIOHTTP1.HTTPResponseEncoder:2:11: [1;39mnote: [1;39mconformance of 'HTTPResponseEncoder' to 'Sendable' has been explicitly marked unavailable here[0;0m
[0;36m1 |[0;0m @available(*, unavailable)
[0;36m2 |[0;0m extension HTTPResponseEncoder : Sendable {
  [0;36m|[0;0m           `- [1;39mnote: [1;39mconformance of 'HTTPResponseEncoder' to 'Sendable' has been explicitly marked unavailable here[0;0m
[0;36m3 |[0;0m }
/Users/admin/builder/spi-builder-workspace/Sources/NIOAsyncWebSockets/NIOWebSocketServerUpgrader.swift:294:31: [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m292 |[0;0m                 hasher.update(string: key)
[0;36m293 |[0;0m                 hasher.update(string: magicWebSocketGUID)
[0;36m294 |[0;0m                 acceptValue = String(base64Encoding: hasher.finish())
    [0;36m|[0;0m                               `- [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m295 |[0;0m             }
[0;36m296 |[0;0m
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
/Users/admin/builder/spi-builder-workspace/Sources/NIOAsyncWebSockets/NIOWebSocketClientUpgrader.swift:148:16: [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m146 |[0;0m             UInt64.random(in: UInt64.min...UInt64.max, using: &generator)
[0;36m147 |[0;0m         )
[0;36m148 |[0;0m         return String(base64Encoding: buffer.readableBytesView)
    [0;36m|[0;0m                `- [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m149 |[0;0m     }
[0;36m150 |[0;0m     /// Generates a random WebSocket Request Key by generating 16 bytes randomly using the `SystemRandomNumberGenerator` and encoding them as a base64 string as defined in RFC6455 https://tools.ietf.org/html/rfc6455#section-4.1.
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
/Users/admin/builder/spi-builder-workspace/Sources/NIOAsyncWebSockets/NIOWebSocketClientUpgrader.swift:148:16: [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m146 |[0;0m             UInt64.random(in: UInt64.min...UInt64.max, using: &generator)
[0;36m147 |[0;0m         )
[0;36m148 |[0;0m         return String(base64Encoding: buffer.readableBytesView)
    [0;36m|[0;0m                `- [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m149 |[0;0m     }
[0;36m150 |[0;0m     /// Generates a random WebSocket Request Key by generating 16 bytes randomly using the `SystemRandomNumberGenerator` and encoding them as a base64 string as defined in RFC6455 https://tools.ietf.org/html/rfc6455#section-4.1.
/Users/admin/builder/spi-builder-workspace/Sources/NIOAsyncWebSockets/NIOWebSocketClientUpgrader.swift:178:31: [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m176 |[0;0m     hasher.update(string: requestKey)
[0;36m177 |[0;0m     hasher.update(string: magicWebSocketGUID)
[0;36m178 |[0;0m     let expectedAcceptValue = String(base64Encoding: hasher.finish())
    [0;36m|[0;0m                               `- [1;33mwarning: [1;39m'init(base64Encoding:)' is deprecated: This API was unintentionally made public.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m179 |[0;0m
[0;36m180 |[0;0m     return expectedAcceptValue == acceptValueHeader[0]
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-nio",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.12.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-nio.git"
    },
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-docc-plugin"
    }
  ],
  "manifest_display_name" : "NIOAsyncWebSockets",
  "name" : "NIOAsyncWebSockets",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
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      "version" : "13.0"
    },
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      "version" : "16.0"
    },
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      "name" : "tvos",
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    }
  ],
  "products" : [
    {
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      "targets" : [
        "NIOAsyncWebSockets"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NIOAsyncWebSocketsTests",
      "module_type" : "SwiftTarget",
      "name" : "NIOAsyncWebSocketsTests",
      "path" : "Tests/NIOAsyncWebSocketsTests",
      "sources" : [
        "NIOAsyncWebSocketsTests.swift"
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      "target_dependencies" : [
        "NIOAsyncWebSockets"
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      "type" : "test"
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    {
      "c99name" : "NIOAsyncWebSockets",
      "module_type" : "SwiftTarget",
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      "path" : "Sources/NIOAsyncWebSockets",
      "product_dependencies" : [
        "NIO",
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        "NIOWebSocket",
        "NIOPosix"
      ],
      "product_memberships" : [
        "NIOAsyncWebSockets"
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      "sources" : [
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        "NIOTypedHTTPClientUpgraderStateMachine.swift",
        "NIOTypedHTTPServerUpgradeHandler.swift",
        "NIOTypedHTTPServerUpgraderStateMachine.swift",
        "NIOTypedPipelineSetup.swift",
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        "NIOWebSocketServerUpgrader.swift",
        "SHA1.swift"
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  "tools_version" : "5.9"
}
Done.