Compilare: warning: unreachable statement --> main.rs:234:5 | 233 | panic!("Err"); | ------------- any code following this expression is unreachable 234 | input.read_line(&mut buf).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement | = note: `#[warn(unreachable_code)]` on by default warning: unused variable: `input` --> main.rs:231:13 | 231 | let mut input = BufReader::new(file); | ^^^^^ help: if this is intentional, prefix it with an underscore: `_input` | = note: `#[warn(unused_variables)]` on by default warning: unused variable: `buf` --> main.rs:232:13 | 232 | let mut buf: String = "".to_owned(); | ^^^ help: if this is intentional, prefix it with an underscore: `_buf` warning: variable does not need to be mutable --> main.rs:231:9 | 231 | let mut input = BufReader::new(file); | ----^^^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> main.rs:232:9 | 232 | let mut buf: String = "".to_owned(); | ----^^^ | | | help: remove this `mut` warning: 5 warnings emitted