| error[E0392]: type parameter `T` is never used | |
| --> $DIR/E0392.rs:1:10 | |
| | | |
| LL | enum Foo<T> { Bar } | |
| | ^ unused type parameter | |
| | | |
| = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData` | |
| = help: if you intended `T` to be a const parameter, use `const T: /* Type */` instead | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0392`. |