error[E0505]: cannot move out of `*a` because it is borrowed
  --> $DIR/borrowck-move-from-subpath-of-borrowed-path.rs:22:9
   |
LL |     let b = &a;
   |              - borrow of `a` occurs here
LL | 
LL |     let z = *a; //~ ERROR: cannot move out of `*a` because it is borrowed
   |         ^ move out of `*a` occurs here

error: aborting due to previous error

For more information about this error, try `rustc --explain E0505`.