Naming convention for static mut is not enforced

[matklad]

The following program does not report any naming convention warnings:

#![allow(dead_code)]

static mut snake_case: u32 = 0;
static mut camelCase: u32 = 0;
static mut SCREAMING_SNAKE_CASE: u32 = 0;
static mut CapitalizedCamelCase: u32 = 0;

fn main() {}

Looks like only SCREAMING_SNAKE_CASE should be allowed? If I remove muts, I get the warnings. Or have we already deprecated static muts (pre rfc: https://internals.rust-lang.org/t/pre-rfc-remove-static-mut/1437/20) ?

[sfackler]

Static muts are not deprecated. This looks like it's just an oversight in those lints. The convention should be identical to normal statics.

[matklad]

Ok, I'll try to submit a PR then.