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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 Typist, reference 1.4.3 (c3de43), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 07:33:03 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/totocaster/Typist.git
Reference: 1.4.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/totocaster/Typist
 * tag               1.4.3      -> FETCH_HEAD
HEAD is now at c3de439 Merge pull request #36 from totocaster/minor_updates_jun_2020
Cloned https://github.com/totocaster/Typist.git
Revision (git rev-parse @):
c3de439044e5eec80fc88512c89436030f42a556
SUCCESS checkout https://github.com/totocaster/Typist.git at 1.4.3
========================================
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": "typist",
      "name": "Typist",
      "url": "https://github.com/totocaster/Typist.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Typist",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/totocaster/Typist.git
[1/519] Fetching typist
Fetched https://github.com/totocaster/Typist.git from cache (0.66s)
Creating working copy for https://github.com/totocaster/Typist.git
Working copy of https://github.com/totocaster/Typist.git resolved at 1.4.3 (c3de439)
warning: '.resolve-product-dependencies': dependency 'typist' 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/totocaster/Typist.git
https://github.com/totocaster/Typist.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Typist",
  "name" : "Typist",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "10.0"
    }
  ],
  "products" : [
    {
      "name" : "Typist",
      "targets" : [
        "Typist"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "Typist",
      "module_type" : "SwiftTarget",
      "name" : "Typist",
      "path" : "Sources/Typist",
      "product_memberships" : [
        "Typist"
      ],
      "sources" : [
        "Typist.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist-Demo': File not found.
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 Typist
/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | /**
[4/4] Compiling Typist Typist.swift
/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | /**
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist-Demo': File not found.
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 Typist
/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | /**
[3/3] Compiling Typist Typist.swift
/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist.swift:8:8: error: no such module 'UIKit'
  6 | //
  7 |
  8 | import UIKit
    |        `- error: no such module 'UIKit'
  9 |
 10 | /**
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Sources/Typist/Typist-Demo': File not found.
BUILD FAILURE 6.1 macosSpm