1error: unreachable statement
2  --> tests/ui/unreachable.rs:16:9
3   |
415 |         let _y = unimplemented!();
5   |                  ---------------- any code following this expression is unreachable
616 |         let _z = _y;
7   |         ^^^^^^^^^^^^ unreachable statement
8   |
9note: the lint level is defined here
10  --> tests/ui/unreachable.rs:1:9
11   |
121  | #![deny(warnings)]
13   |         ^^^^^^^^
14   = note: `#[deny(unreachable_code)]` implied by `#[deny(warnings)]`
15