rust-analyzer shows warning as an error

[Tahinli]

Hi,

fn main() {
    println!("Hello, world!");

    let buf = vec![1, 2, 3, 4];
    for item in buf {
        match item {
            _ => return,
        }
    }
}

Obviously it's not a good code but it's compiling isn't it a warning not an error.

I'm using neovim via rustacianvim which uses rust-analyzer on my system.

[lnicola]

You've configured rust-analyzer to run cargo clippy instead of cargo check. If you try it yourself (in the terminal), you'll get the same error:

error: this loop never actually loops
 --> src/main.rs:5:5
  |
5 | /     for item in buf {
6 | |         match item {
7 | |             _ => return,
8 | |         }
9 | |     }
  | |_____^
  |
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#never_loop
  = note: `#[deny(clippy::never_loop)]` on by default

[Tahinli]

Thanks a lot.