❌ ❌ at

We enable any warning flag we can get our hands on, and then we don't use -Werror, but we track the number of warnings. If you knowingly introduce a warning, but you decide that instance of the warning is ok, you need to explicitly raise the ceiling. You can't merge if you're above the ceiling.

Warning levels are lowered nightly, to reduce the risk that you unknowingly introduce a warning just because someone else removed one.