Swift Package Index

Build Information

Successful build of WebMIDIKit, reference master (6f3506), with Swift 6.4 for macOS (SPM) on 15 Sep 2026 18:42:39 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/adamnemecek/webmidikit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/adamnemecek/webmidikit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 6f35069 Improve Xcode 12+ compatibility (#35)
Cloned https://github.com/adamnemecek/webmidikit.git
Revision (git rev-parse @):
6f3506937c141f04edaaa182502984d7baaa2e26
SUCCESS checkout https://github.com/adamnemecek/webmidikit.git at master
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/adamnemecek/webmidikit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
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Build complete! (10.03 sec)
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/CoreMIDI.swift:3:1: warning: extension declares a conformance of imported type 'MIDIObjectAddRemoveNotification' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
  1 | import CoreMIDI
  2 |
  3 | extension MIDIObjectAddRemoveNotification: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'MIDIObjectAddRemoveNotification' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
  4 |
  5 |     public var description: String {
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/Extensions.swift:10:1: warning: extension declares a conformance of imported type 'MIDIObjectType' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
 8 | }
 9 |
10 | extension MIDIObjectType: CustomStringConvertible {
   | |- warning: extension declares a conformance of imported type 'MIDIObjectType' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
11 |     public var description: String {
12 |         switch self {
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketList.swift:133:1: warning: extension declares a conformance of imported type 'MIDIPacketList' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
131 | // }
132 |
133 | extension MIDIPacketList: Sequence {
    | |- warning: extension declares a conformance of imported type 'MIDIPacketList' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
134 |     public typealias Element = UnsafeMutablePointer<MIDIPacket>
135 |
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketList.swift:220:1: warning: extension declares a conformance of imported type 'UnsafePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
218 | // }
219 |
220 | extension UnsafePointer: Sequence where Pointee == MIDIPacketList {
    | |- warning: extension declares a conformance of imported type 'UnsafePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
221 |     public typealias Element = UnsafeMutablePointer<MIDIPacket>
222 |
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketListBuilder.swift:194:1: warning: extension declares a conformance of imported type 'UnsafeMutablePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
192 |
193 |
194 | extension UnsafeMutablePointer: Sequence where Pointee == MIDIPacketList {
    | |- warning: extension declares a conformance of imported type 'UnsafeMutablePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
195 |     public typealias Element = UnsafePointer<MIDIPacket>
196 |
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketListBuilder.swift:216:1: warning: extension declares a conformance of imported type 'UnsafeRawBufferPointer' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
214 | }
215 |
216 | extension UnsafeRawBufferPointer : Equatable {
    | |- warning: extension declares a conformance of imported type 'UnsafeRawBufferPointer' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
217 |     @inline(__always)
218 |     public static func ==(lhs: Self, rhs: Self) -> Bool {
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/Extensions.swift:10:1: warning: extension declares a conformance of imported type 'MIDIObjectType' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
 8 | }
 9 |
10 | extension MIDIObjectType: CustomStringConvertible {
   | |- warning: extension declares a conformance of imported type 'MIDIObjectType' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
11 |     public var description: String {
12 |         switch self {
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/CoreMIDI.swift:3:1: warning: extension declares a conformance of imported type 'MIDIObjectAddRemoveNotification' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
  1 | import CoreMIDI
  2 |
  3 | extension MIDIObjectAddRemoveNotification: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'MIDIObjectAddRemoveNotification' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
  4 |
  5 |     public var description: String {
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPort.swift:186:27: warning: string interpolation produces a debug description for an optional value; did you mean to make this explicit?
184 |             type = "MIDIOutput"
185 |         }
186 |         return "\(type) \(name) by \(manufacturer), connection: \(connection) (id: \(id))"
    |                           |- warning: string interpolation produces a debug description for an optional value; did you mean to make this explicit?
    |                           |- note: provide a default value to avoid this warning
    |                           `- note: use 'String(describing:)' to silence this warning
187 |     }
188 | }
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPort.swift:186:38: warning: string interpolation produces a debug description for an optional value; did you mean to make this explicit?
184 |             type = "MIDIOutput"
185 |         }
186 |         return "\(type) \(name) by \(manufacturer), connection: \(connection) (id: \(id))"
    |                                      |- warning: string interpolation produces a debug description for an optional value; did you mean to make this explicit?
    |                                      |- note: provide a default value to avoid this warning
    |                                      `- note: use 'String(describing:)' to silence this warning
187 |     }
188 | }
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketList.swift:133:1: warning: extension declares a conformance of imported type 'MIDIPacketList' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
131 | // }
132 |
133 | extension MIDIPacketList: Sequence {
    | |- warning: extension declares a conformance of imported type 'MIDIPacketList' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'CoreMIDI' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
134 |     public typealias Element = UnsafeMutablePointer<MIDIPacket>
135 |
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketList.swift:220:1: warning: extension declares a conformance of imported type 'UnsafePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
218 | // }
219 |
220 | extension UnsafePointer: Sequence where Pointee == MIDIPacketList {
    | |- warning: extension declares a conformance of imported type 'UnsafePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
221 |     public typealias Element = UnsafeMutablePointer<MIDIPacket>
222 |
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketListBuilder.swift:194:1: warning: extension declares a conformance of imported type 'UnsafeMutablePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
192 |
193 |
194 | extension UnsafeMutablePointer: Sequence where Pointee == MIDIPacketList {
    | |- warning: extension declares a conformance of imported type 'UnsafeMutablePointer' to imported protocol 'Sequence'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
195 |     public typealias Element = UnsafePointer<MIDIPacket>
196 |
/Users/admin/builder/spi-builder-workspace/Sources/WebMIDIKit/MIDIPacketListBuilder.swift:216:1: warning: extension declares a conformance of imported type 'UnsafeRawBufferPointer' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
214 | }
215 |
216 | extension UnsafeRawBufferPointer : Equatable {
    | |- warning: extension declares a conformance of imported type 'UnsafeRawBufferPointer' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
217 |     @inline(__always)
218 |     public static func ==(lhs: Self, rhs: Self) -> Bool {
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "WebMIDIKit",
  "name" : "WebMIDIKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "WebMIDIKit",
      "targets" : [
        "WebMIDIKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "WebMIDIKitTests",
      "module_type" : "SwiftTarget",
      "name" : "WebMIDIKitTests",
      "path" : "Tests/WebMIDIKitTests",
      "sources" : [
        "MIDIPacketListBuilderTests.swift",
        "WebMIDIKitTests.swift"
      ],
      "target_dependencies" : [
        "WebMIDIKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "WebMIDIKit",
      "module_type" : "SwiftTarget",
      "name" : "WebMIDIKit",
      "path" : "Sources/WebMIDIKit",
      "product_memberships" : [
        "WebMIDIKit"
      ],
      "sources" : [
        "CoreMIDI.swift",
        "Enums.swift",
        "Extensions.swift",
        "MIDIClient.swift",
        "MIDIEndpoint.swift",
        "MIDIEvent.swift",
        "MIDIInput.swift",
        "MIDIOutput.swift",
        "MIDIPacketList.swift",
        "MIDIPacketListBuilder.swift",
        "MIDIPort.swift",
        "MIDIPortMap.swift",
        "MIDIStatus.swift",
        "VirtualMIDIInput.swift",
        "VirtualMIDIOutput.swift",
        "WebMIDIKit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.