| error[E0053]: method `call_once` has an incompatible type for trait | |
| --> $DIR/issue-15094.rs:21:5 | |
| | | |
| LL | fn call_once(self, _args: ()) { | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected "rust-call" fn, found "Rust" fn | |
| | | |
| = note: expected type `extern "rust-call" fn(Debuger<T>, ())` | |
| found type `fn(Debuger<T>, ())` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0053`. |