1 #![feature(tool_lints)]
2 #![warn(clippy::all, clippy::style, clippy::mem_replace_option_with_none)]
7 let mut an_option = Some(1);
8 let _ = mem::replace(&mut an_option, None);
9 let an_option = &mut Some(1);
10 let _ = mem::replace(an_option, None);