bors 7ea7cd165a Auto merge of #5652 - rust-lang:flip1995-patch-1, r=yaahc
Fail bors on missing changelog

Bors stopped failed if the changelog was missing. Instead it waited 2h (?) and then timed out.

changelog: none
2020-05-27 18:55:57 +00:00
..
2020-05-27 06:25:38 +09:00