<p dir="auto">I think we attempted this before, but didn't get through. Is there any code left?<br>
Master has a bunch of errors again :-/</p>
<p dir="auto">We should fix the remaining sphinx warnings here:<br>
<a href="https://circleci.com/gh/scikit-learn/scikit-learn/1629" rel="nofollow">https://circleci.com/gh/scikit-learn/scikit-learn/1629</a></p>
<p dir="auto">and then make circle IO error if there are any warnings (grep'ing for <code class="notranslate">WARNINGS</code> I guess?).</p>
<p dir="auto">This way we immediately see if someone broke anything in the docs.</p>