| error[E0038]: the trait `Expr` cannot be made into an object |
| --> $DIR/object-safety-issue-22040.rs:12:23 |
| | |
| LL | elements: Vec<Box<dyn Expr + 'x>>, |
| | ^^^^^^^^^^^^^ `Expr` cannot be made into an object |
| | |
| note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| --> $DIR/object-safety-issue-22040.rs:5:21 |
| | |
| LL | trait Expr: Debug + PartialEq { |
| | ---- ^^^^^^^^^ ...because it uses `Self` as a type parameter |
| | | |
| | this trait cannot be made into an object... |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0038`. |
