error[E0072]: recursive type `Foo` has infinite size | |
--> $DIR/issue-17431-6.rs:3:1 | |
| | |
LL | enum Foo { X(Mutex<Option<Foo>>) } | |
| ^^^^^^^^ ------------------ recursive without indirection | |
| | | |
| recursive type has infinite size | |
| | |
= help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0072`. |