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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 LDSwiftEventSource, reference main (724f86), with Swift 6.0 for macOS (SPM) on 5 Nov 2024 03:06:20 UTC.

Swift 6 data race errors: 3

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/LaunchDarkly/swift-eventsource.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/LaunchDarkly/swift-eventsource
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 724f869 ci: Update various github action versions (#84)
Cloned https://github.com/LaunchDarkly/swift-eventsource.git
Revision (git rev-parse @):
724f869b4b379cfdb470b5db20459e26a8e75c6a
SUCCESS checkout https://github.com/LaunchDarkly/swift-eventsource.git at main
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "swift-eventsource",
      "name": "LDSwiftEventSource",
      "url": "https://github.com/LaunchDarkly/swift-eventsource.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-eventsource",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/LaunchDarkly/swift-eventsource.git
[1/1567] Fetching swift-eventsource
Fetched https://github.com/LaunchDarkly/swift-eventsource.git from cache (1.09s)
Creating working copy for https://github.com/LaunchDarkly/swift-eventsource.git
Working copy of https://github.com/LaunchDarkly/swift-eventsource.git resolved at main (724f869)
warning: '.resolve-product-dependencies': dependency 'swift-eventsource' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/LaunchDarkly/swift-eventsource.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/8] Compiling LDSwiftEventSource UTF8LineParser.swift
[4/8] Compiling LDSwiftEventSource Logs.swift
[5/8] Compiling LDSwiftEventSource Types.swift
/Users/admin/builder/spi-builder-workspace/Source/Types.swift:99:14: warning: non-final class 'UnsuccessfulResponseError' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
 97 |
 98 | /// Error class that indicates the remote server returned an unsuccessful HTTP response code.
 99 | public class UnsuccessfulResponseError: Error {
    |              `- warning: non-final class 'UnsuccessfulResponseError' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
100 |     /// The HTTP response code received.
101 |     public let responseCode: Int
[6/8] Compiling LDSwiftEventSource EventParser.swift
[7/8] Emitting module LDSwiftEventSource
/Users/admin/builder/spi-builder-workspace/Source/LDSwiftEventSource.swift:165:7: warning: non-final class 'EventSourceDelegate' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
163 |
164 | // MARK: EventSourceDelegate
165 | class EventSourceDelegate: NSObject, URLSessionDataDelegate {
    |       `- warning: non-final class 'EventSourceDelegate' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
166 |     private let delegateQueue: DispatchQueue = DispatchQueue(label: "ESDelegateQueue")
167 |
/Users/admin/builder/spi-builder-workspace/Source/LDSwiftEventSource.swift:168:16: warning: stored property 'logger' of 'Sendable'-conforming class 'EventSourceDelegate' is mutable; this is an error in the Swift 6 language mode
166 |     private let delegateQueue: DispatchQueue = DispatchQueue(label: "ESDelegateQueue")
167 |
168 |     public var logger: InternalLogging
    |                `- warning: stored property 'logger' of 'Sendable'-conforming class 'EventSourceDelegate' is mutable; this is an error in the Swift 6 language mode
169 |
170 |     private let config: EventSource.Config
/Users/admin/builder/spi-builder-workspace/Source/Types.swift:99:14: warning: non-final class 'UnsuccessfulResponseError' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
 97 |
 98 | /// Error class that indicates the remote server returned an unsuccessful HTTP response code.
 99 | public class UnsuccessfulResponseError: Error {
    |              `- warning: non-final class 'UnsuccessfulResponseError' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
100 |     /// The HTTP response code received.
101 |     public let responseCode: Int
[8/8] Compiling LDSwiftEventSource LDSwiftEventSource.swift
/Users/admin/builder/spi-builder-workspace/Source/LDSwiftEventSource.swift:165:7: warning: non-final class 'EventSourceDelegate' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
163 |
164 | // MARK: EventSourceDelegate
165 | class EventSourceDelegate: NSObject, URLSessionDataDelegate {
    |       `- warning: non-final class 'EventSourceDelegate' cannot conform to 'Sendable'; use '@unchecked Sendable'; this is an error in the Swift 6 language mode
166 |     private let delegateQueue: DispatchQueue = DispatchQueue(label: "ESDelegateQueue")
167 |
/Users/admin/builder/spi-builder-workspace/Source/LDSwiftEventSource.swift:168:16: warning: stored property 'logger' of 'Sendable'-conforming class 'EventSourceDelegate' is mutable; this is an error in the Swift 6 language mode
166 |     private let delegateQueue: DispatchQueue = DispatchQueue(label: "ESDelegateQueue")
167 |
168 |     public var logger: InternalLogging
    |                `- warning: stored property 'logger' of 'Sendable'-conforming class 'EventSourceDelegate' is mutable; this is an error in the Swift 6 language mode
169 |
170 |     private let config: EventSource.Config
Build complete! (9.38s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LDSwiftEventSource",
  "name" : "LDSwiftEventSource",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "macos",
      "version" : "10.13"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "tvos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "LDSwiftEventSource",
      "targets" : [
        "LDSwiftEventSource"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "LDSwiftEventSourceTests",
      "module_type" : "SwiftTarget",
      "name" : "LDSwiftEventSourceTests",
      "path" : "Tests",
      "sources" : [
        "EventParserTests.swift",
        "LDSwiftEventSourceTests.swift",
        "MockHandler.swift",
        "TestUtil.swift",
        "UTF8LineParserTests.swift"
      ],
      "target_dependencies" : [
        "LDSwiftEventSource"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LDSwiftEventSource",
      "module_type" : "SwiftTarget",
      "name" : "LDSwiftEventSource",
      "path" : "Source",
      "product_memberships" : [
        "LDSwiftEventSource"
      ],
      "sources" : [
        "EventParser.swift",
        "LDSwiftEventSource.swift",
        "Logs.swift",
        "Types.swift",
        "UTF8LineParser.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.