tests/ui/issues/issue-20055-box-trait.stderr

warning: method `dummy` is never used
  --> $DIR/issue-20055-box-trait.rs:11:8
   |
LL | trait Boo {
   |       --- method in this trait
LL |     fn dummy(&self) { }
   |        ^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted