error[E0505]: cannot move out of `v` because it is borrowed
  --> $DIR/drop-live-upvar.rs:19:10
   |
LL |     let v = vec![1, 2, 3];
   |         - binding `v` declared here
LL |     let x = NeedsDrop(&v);
   |                       -- borrow of `v` occurs here
...
LL |     drop(v);
   |          ^ move out of `v` occurs here
LL |
LL | }
   | - borrow might be used here, when `c` is dropped and runs the destructor for coroutine
   |
help: consider cloning the value if the performance cost is acceptable
   |
LL |     let x = NeedsDrop(&v.clone());
   |                         ++++++++

error: aborting due to 1 previous error

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