wrong_self_convention fails for libstd RawEntryBuilderMut::from_key

[gnzlbg]

libstd RawEntryBuilderMut::from_key is a builder, which takes self as first argument and the key to use as a second argument. This seems ok, but wrong_self_convention lints it.

https://doc.rust-lang.org/std/collections/hash_map/struct.RawEntryBuilderMut.html#method.from_key

[oli-obk]

I'm not sure which part it is complaining about, if it is the fact that there are two arguments, we should not emit the lint if an argument is Self.