Clippy does not respect inline #[allow(…)] attribute

[antoyo]

Hello.
It seems that clippy does not respect the inline #[allow(…)] attributes.
For instance, the following code still triggers a warning:

    #[allow(toplevel_ref_arg)]
    let ref mut x = 1234543;

Thanks to fix this issue.

[oli-obk]

We allow it on some lints. Not sure what's happening with this one. It might be a rustc issue.