error: WIP interface trait inheritance is not supported
 --> tests/ui/inherited_trait.rs:4:22
  |
4 | pub trait Inherited: Send {
  |                      ^^^^

warning: unused import: `OperationResult`
 --> tests/ui/inherited_trait.rs:1:21
  |
1 | use wip_interface::{OperationResult, interface};
  |                     ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default