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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

Failed to build Keybro, reference 1.0.0 (12145f), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 08:41:45 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/antongaenko/keybro.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/antongaenko/keybro
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 12145f5 Add cocoapods spec
Cloned https://github.com/antongaenko/keybro.git
Revision (git rev-parse @):
12145f5cb03a8b77387e54faf575f9a524a4536e
SUCCESS checkout https://github.com/antongaenko/keybro.git at 1.0.0
========================================
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": "keybro",
      "name": "Keybro",
      "url": "https://github.com/antongaenko/keybro.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/keybro",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/antongaenko/keybro.git
[1/115] Fetching keybro
Fetched https://github.com/antongaenko/keybro.git from cache (0.63s)
Creating working copy for https://github.com/antongaenko/keybro.git
Working copy of https://github.com/antongaenko/keybro.git resolved at 1.0.0 (12145f5)
warning: '.resolve-product-dependencies': dependency 'keybro' 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/antongaenko/keybro.git
https://github.com/antongaenko/keybro.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Keybro",
  "name" : "Keybro",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "9.0"
    }
  ],
  "products" : [
    {
      "name" : "Keybro",
      "targets" : [
        "Keybro"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "Keybro",
      "module_type" : "SwiftTarget",
      "name" : "Keybro",
      "path" : "keybro",
      "product_memberships" : [
        "Keybro"
      ],
      "sources" : [
        "Keybro.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module Keybro
/Users/admin/builder/spi-builder-workspace/keybro/Keybro.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | public enum Command {
[4/4] Compiling Keybro Keybro.swift
/Users/admin/builder/spi-builder-workspace/keybro/Keybro.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | public enum Command {
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/3] Emitting module Keybro
/Users/admin/builder/spi-builder-workspace/keybro/Keybro.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | public enum Command {
[3/3] Compiling Keybro Keybro.swift
/Users/admin/builder/spi-builder-workspace/keybro/Keybro.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | public enum Command {
BUILD FAILURE 6.1 macosSpm