warning: unused imports: `Eq`, `Ord`, `PartialEq`, `PartialOrd`
  --> $DIR/multispan-import-lint.rs:5:16
   |
LL | use std::cmp::{Eq, Ord, min, PartialEq, PartialOrd};
   |                ^^  ^^^       ^^^^^^^^^  ^^^^^^^^^^
   |
note: lint level defined here
  --> $DIR/multispan-import-lint.rs:3:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`