warning: unreachable statement
  --> $DIR/never-assign-dead-code.rs:10:5
   |
LL |     let x: ! = panic!("aah");
   |                ------------- any code following this expression is unreachable
LL |     drop(x);
   |     ^^^^^^^^ unreachable statement
   |
note: lint level defined here
  --> $DIR/never-assign-dead-code.rs:5:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unreachable_code)]` implied by `#[warn(unused)]`
   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

warning: unreachable call
  --> $DIR/never-assign-dead-code.rs:10:5
   |
LL |     drop(x);
   |     ^^^^ - any code following this expression is unreachable
   |     |
   |     unreachable call

warning: unused variable: `x`
  --> $DIR/never-assign-dead-code.rs:9:9
   |
LL |     let x: ! = panic!("aah");
   |         ^ help: consider prefixing with an underscore: `_x`
   |
note: lint level defined here
  --> $DIR/never-assign-dead-code.rs:5:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`