error[E0597]: `arena` does not live long enough
  --> $DIR/dropck-tarena-cycle-checked.rs:116:8
   |
LL |     f(&arena);
   |        ^^^^^ borrowed value does not live long enough
LL | }
   | - `arena` dropped here while still borrowed
   |
   = note: values in a scope are dropped in the opposite order they are created

error: aborting due to previous error

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