tests/ui/nll/closure-requirements/propagate-approximated-val.stderr

note: external requirements
  --> $DIR/propagate-approximated-val.rs:36:45
   |
LL |     establish_relationships(cell_a, cell_b, |outlives1, outlives2, x, y| {
   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: defining type: test::{closure#0} with closure args [
               i16,
               for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &'^0 u32>, std::cell::Cell<&'^1 &'?2 u32>, std::cell::Cell<&'^0 u32>, std::cell::Cell<&'^1 u32>)),
               (),
           ]
   = note: late-bound region is '?5
   = note: late-bound region is '?6
   = note: late-bound region is '?3
   = note: late-bound region is '?4
   = note: number of external vids: 5
   = note: where '?1: '?2

note: no external requirements
  --> $DIR/propagate-approximated-val.rs:35:1
   |
LL | fn test<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: defining type: test

error: lifetime may not live long enough
  --> $DIR/propagate-approximated-val.rs:36:5
   |
LL |   fn test<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
   |           --  -- lifetime `'b` defined here
   |           |
   |           lifetime `'a` defined here
LL | /     establish_relationships(cell_a, cell_b, |outlives1, outlives2, x, y| {
...  |
LL | |     });
   | |______^ argument requires that `'a` must outlive `'b`
   |
   = help: consider adding the following bound: `'a: 'b`
   = note: requirement occurs because of the type `Cell<&'?7 u32>`, which makes the generic argument `&'?7 u32` invariant
   = note: the struct `Cell<T>` is invariant over the parameter `T`
   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance

error: aborting due to 1 previous error