warning: passing a unit value to a function
   --> src/api/server/mod.rs:191:9
    |
191 | /         Ok(self
192 | |             .go(withdraw_server_cancellation(server_number))
193 | |             .await?
194 | |             .throw_away())
    | |__________________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
    = note: `#[warn(clippy::unit_arg)]` on by default
help: move the expression in front of the call and replace it with the unit literal `()`
    |
191 ~         self
192 +         .go(withdraw_server_cancellation(server_number))
193 +         .await?
194 +         .throw_away();
195 +         Ok(())
    |