error[E0072]: recursive type `Take` has infinite size
  --> $DIR/infinite-struct.rs:1:1
   |
LL | struct Take(Take);
   | ^^^^^^^^^^^ ---- recursive without indirection
   |
help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
   |
LL | struct Take(Box<Take>);
   |             ++++    +

error[E0072]: recursive type `Foo` has infinite size
  --> $DIR/infinite-struct.rs:10:1
   |
LL | struct Foo {
   | ^^^^^^^^^^
LL |     x: Bar<Foo>,
   |            --- recursive without indirection
   |
help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
   |
LL |     x: Bar<Box<Foo>>,
   |            ++++   +

error: reached the recursion limit finding the struct tail for `Take`
   |
   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0072`.