error: lifetime may not live long enough
  --> $DIR/issue-42574-diagnostic-in-nested-closure.rs:6:8
   |
LL |     || doit(data);
   |     -- ^^^^^^^^^^ argument requires that `'1` must outlive `'static`
   |     |
   |     lifetime `'1` represents this closure's body
   |
   = note: closure implements `FnMut`, so references to captured variables can't escape the closure

error[E0597]: `data` does not live long enough
  --> $DIR/issue-42574-diagnostic-in-nested-closure.rs:6:13
   |
LL | fn doit(data: &'static mut ()) {
   |         ---- binding `data` declared here
LL |     || doit(data);
   |     -- -----^^^^-
   |     |  |    |
   |     |  |    borrowed value does not live long enough
   |     |  argument requires that `data` is borrowed for `'static`
   |     value captured here
...
LL | }
   |  - `data` dropped here while still borrowed

error: aborting due to 2 previous errors

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