| error[E0091]: type parameter `Unused` is never used | |
| --> $DIR/issue-30236.rs:2:5 | |
| | | |
| LL | Unused | |
| | ^^^^^^ unused type parameter | |
| | | |
| = help: consider removing `Unused` or referring to it in the body of the type alias | |
| = help: if you intended `Unused` to be a const parameter, use `const Unused: /* Type */` instead | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0091`. |