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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 Symbols, reference master (5e8258), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 16:36:00 UTC.

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/lennet/symbols.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/lennet/symbols
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 5e8258a Update README.md
Cloned https://github.com/lennet/symbols.git
Revision (git rev-parse @):
5e8258ad7ed4cc80d294813cab4a32ea535f27a1
SUCCESS checkout https://github.com/lennet/symbols.git at master
========================================
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": "symbols",
      "name": "Symbols",
      "url": "https://github.com/lennet/symbols.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/symbols",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/lennet/symbols.git
[1/41] Fetching symbols
Fetched https://github.com/lennet/symbols.git from cache (0.67s)
Creating working copy for https://github.com/lennet/symbols.git
Working copy of https://github.com/lennet/symbols.git resolved at master (5e8258a)
warning: '.resolve-product-dependencies': dependency 'symbols' 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/lennet/symbols.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
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module Symbols
<unknown>:0: error: circular dependency between modules 'Symbols' and 'AppKit'
[4/4] Compiling Symbols Symbols.swift
<unknown>:0: error: circular dependency between modules 'Symbols' and 'AppKit'
BUILD FAILURE 6.0 macosSpm