title: Hide warnings: Simultaneous accesses to ... but modification requires exclusive access
body: <p>I'm using 3rd party libraries which are not yet ready for Swift 4, i.e. break the exclusive memory access rule (<a href="https://github.com/apple/swift-evolution/blob/master/proposals/0176-enforce-exclusive-access-to-memory.md" rel="nofollow noreferrer">SE-0176</a>).</p>
  
  <p>So, my console is flooded with these warnings:</p>
  
  <pre><code>Simultaneous accesses to 0xb1ab1ab1a, but modification requires exclusive access.
  Previous access (a modification) started at MyTarget`That3rdPartyLib.func(_:args:) + 123 (0xb1ab1ab1a).
  Current access (a read) started at:
  &lt;callstack...&gt;
  </code></pre>
  
  <p>How to remove them?</p>