warning: unused import: `m::Tr1 as _`
  --> $DIR/basic.rs:26:9
   |
LL |     use m::Tr1 as _;
   |         ^^^^^^^^^^^
   |
note: the lint level is defined here
  --> $DIR/basic.rs:4:9
   |
LL | #![warn(unused_imports, unused_extern_crates)]
   |         ^^^^^^^^^^^^^^

warning: unused import: `S as _`
  --> $DIR/basic.rs:27:9
   |
LL |     use S as _;
   |         ^^^^^^

warning: 2 warnings emitted