error[E0597]: `c_shortest` does not live long enough
  --> $DIR/dropck-eyepatch-extern-crate.rs:46:23
   |
LL |         let (mut dt, mut dr, c_shortest): (Dt<_>, Dr<_>, Cell<_>);
   |                              ---------- binding `c_shortest` declared here
...
LL |         dt = Dt("dt", &c_shortest);
   |                       ^^^^^^^^^^^ borrowed value does not live long enough
...
LL |     }
   |     -
   |     |
   |     `c_shortest` dropped here while still borrowed
   |     borrow might be used here, when `dt` is dropped and runs the `Drop` code for type `Dt`
   |
   = note: values in a scope are dropped in the opposite order they are defined

error[E0597]: `c_shortest` does not live long enough
  --> $DIR/dropck-eyepatch-extern-crate.rs:68:32
   |
LL |         let (mut pt, mut pr, c_shortest): (Pt<_, _>, Pr<_>, Cell<_>);
   |                              ---------- binding `c_shortest` declared here
...
LL |         pt = Pt("pt", &c_long, &c_shortest);
   |                                ^^^^^^^^^^^ borrowed value does not live long enough
...
LL |     }
   |     -
   |     |
   |     `c_shortest` dropped here while still borrowed
   |     borrow might be used here, when `pt` is dropped and runs the `Drop` code for type `Pt`
   |
   = note: values in a scope are dropped in the opposite order they are defined

error: aborting due to 2 previous errors

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