src/test/ui/regions/regions-nested-fns.nll.stderr

   1 error[E0521]: borrowed data escapes outside of closure
   2   --> $DIR/regions-nested-fns.rs:10:9
   3    |
   4 LL |     let mut ay = &y;
   5    |         ------ `ay` is declared here, outside of the closure body
   6 LL |
   7 LL |     ignore::<Box<dyn for<'z> FnMut(&'z isize)>>(Box::new(|z| {
   8    |                                                           - `z` is a reference that is only valid in the closure body
   9 ...
  10 LL |         ay = z;
  11    |         ^^^^^^ `z` escapes the closure body here
  12
  13 error[E0597]: `y` does not live long enough
  14   --> $DIR/regions-nested-fns.rs:5:18
  15    |
  16 LL |     let mut ay = &y;
  17    |                  ^^ borrowed value does not live long enough
  18 ...
  19 LL |         if false { return ay; }
  20    |                           -- returning this value requires that `y` is borrowed for `'static`
  21 ...
  22 LL | }
  23    | - `y` dropped here while still borrowed
  24
  25 error[E0597]: `y` does not live long enough
  26   --> $DIR/regions-nested-fns.rs:9:15
  27    |
  28 LL |     ignore::<Box<dyn for<'z> FnMut(&'z isize)>>(Box::new(|z| {
  29    |                                                          --- value captured here
  30 LL |         ay = x;
  31 LL |         ay = &y;
  32    |               ^ borrowed value does not live long enough
  33 ...
  34 LL |         if false { return ay; }
  35    |                           -- returning this value requires that `y` is borrowed for `'static`
  36 ...
  37 LL | }
  38    | - `y` dropped here while still borrowed
  39
  40 error: lifetime may not live long enough
  41   --> $DIR/regions-nested-fns.rs:14:27
  42    |
  43 LL | fn nested<'x>(x: &'x isize) {
  44    |           -- lifetime `'x` defined here
  45 ...
  46 LL |         if false { return x; }
  47    |                           ^ returning this value requires that `'x` must outlive `'static`
  48    |
  49    = help: consider replacing `'x` with `'static`
  50
  51 error: aborting due to 4 previous errors
  52
  53 For more information about this error, try `rustc --explain E0597`.