title: Xcode 13.3 build fails: Command EmitSwiftModule failed with a nonzero exit code
body: <p>After upgrading to Xcode 13.3 the project no longer builds due error: Command EmitSwiftModule failed with a nonzero exit code.</p>
  <p>Does anyone know what the problem could be? There're only warnings about using <code>AnyObject</code> instead of <code>class</code> in the protocols. I guess the problem is in some library. But where exactly the problem is — it's not clear, because Xcode does't even hint about it. Are there any ways to localize the error?</p>