warning: function is never used: `lintme`
  --> $DIR/lint-plugin-cmdline-allow.rs:10:1
   |
LL | fn lintme() { }
   | ^^^^^^^^^^^
   |
note: lint level defined here
  --> $DIR/lint-plugin-cmdline-allow.rs:7:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`