error[E0597]: `p` does not live long enough
  --> $DIR/borrowck-3.rs:13:29
   |
LL |     let mut c = {
   |         ----- borrow later stored here
LL |         let mut p = Point {x: "1".to_string(), y: "2".to_string() };
LL |         || {
   |         -- value captured here
LL |            let x = &mut p.x;
LL |            println!("{:?}", p);
   |                             ^ borrowed value does not live long enough
...
LL |     };
   |     - `p` dropped here while still borrowed

error: aborting due to previous error

For more information about this error, try `rustc --explain E0597`.