| error[E0308]: mismatched types | |
| --> $DIR/occurs-check.rs:5:9 | |
| | | |
| LL | f = Box::new(f); | |
| | ^^^^^^^^^^^ cyclic type of infinite size | |
| | | |
| help: consider unboxing the value | |
| | | |
| LL | f = *Box::new(f); | |
| | + | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0308`. |