src/test/ui/proc-macro/attributes-included.stderr

   1 warning: unused variable: `a`
   2   --> $DIR/attributes-included.rs:17:9
   3    |
   4 LL |     let a: i32 = "foo";
   5    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
   6    |
   7 note: the lint level is defined here
   8   --> $DIR/attributes-included.rs:4:9
   9    |
  10 LL | #![warn(unused)]
  11    |         ^^^^^^
  12    = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
  13
  14 warning: 1 warning emitted
  15