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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 Tabs, reference 1.3.1 (764cc8), with Swift 6.1 for macOS (SPM) on 1 May 2025 14:00:30 UTC.

Swift 6 data race errors: 0

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 InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/heestand-xyz/Tabs.git
Reference: 1.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/heestand-xyz/Tabs
 * tag               1.3.1      -> FETCH_HEAD
HEAD is now at 764cc88 Close All Other Tabs
Cloned https://github.com/heestand-xyz/Tabs.git
Revision (git rev-parse @):
764cc884c68e3a3ee2fb0bb8d60fe0d49f9a4daf
SUCCESS checkout https://github.com/heestand-xyz/Tabs.git at 1.3.1
========================================
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": "tabs",
      "name": "Tabs",
      "url": "https://github.com/heestand-xyz/Tabs.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Tabs",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/heestand-xyz/Tabs.git
[3/225] Fetching tabs
Fetched https://github.com/heestand-xyz/Tabs.git from cache (0.67s)
Creating working copy for https://github.com/heestand-xyz/Tabs.git
Working copy of https://github.com/heestand-xyz/Tabs.git resolved at 1.3.1 (764cc88)
warning: '.resolve-product-dependencies': dependency 'tabs' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/heestand-xyz/Tabs.git
https://github.com/heestand-xyz/Tabs.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Tabs",
  "name" : "Tabs",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    },
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "Tabs",
      "targets" : [
        "Tabs"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Tabs",
      "module_type" : "SwiftTarget",
      "name" : "Tabs",
      "path" : "Sources/Tabs",
      "product_memberships" : [
        "Tabs"
      ],
      "sources" : [
        "Engine/TabEngine.swift",
        "Engine/TabGesture.swift",
        "Engine/View+tab.swift",
        "Models/TabValue.swift",
        "Style/Contstants.swift",
        "Style/Tab.swift",
        "Style/TabsStyle.swift",
        "Tabs.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
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
[3/11] Compiling Tabs Tab.swift
[4/11] Emitting module Tabs
[5/11] Compiling Tabs View+tab.swift
[6/11] Compiling Tabs TabValue.swift
[7/11] Compiling Tabs TabGesture.swift
[8/11] Compiling Tabs Contstants.swift
[9/11] Compiling Tabs TabsStyle.swift
[10/11] Compiling Tabs TabEngine.swift
/Users/admin/builder/spi-builder-workspace/Sources/Tabs/Engine/TabEngine.swift:168:19: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
166 |
167 |         DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(1)) {
168 |             guard self.index == nil
    |                   |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
    |                   `- note: task-isolated 'self' is captured by a main actor-isolated closure. main actor-isolated uses in closure may race against later nonisolated uses
169 |             else { return }
170 |             self.active = false
[11/11] Compiling Tabs Tabs.swift
Build complete! (8.38s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Tabs",
  "name" : "Tabs",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    },
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "Tabs",
      "targets" : [
        "Tabs"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Tabs",
      "module_type" : "SwiftTarget",
      "name" : "Tabs",
      "path" : "Sources/Tabs",
      "product_memberships" : [
        "Tabs"
      ],
      "sources" : [
        "Engine/TabEngine.swift",
        "Engine/TabGesture.swift",
        "Engine/View+tab.swift",
        "Models/TabValue.swift",
        "Style/Contstants.swift",
        "Style/Tab.swift",
        "Style/TabsStyle.swift",
        "Tabs.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.