src/test/ui/nll/closure-requirements/propagate-approximated-ref.stderr

   1 note: external requirements
   2   --> $DIR/propagate-approximated-ref.rs:43:47
   3    |
   4 LL |     establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y| {
   5    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   6    |
   7    = note: defining type: supply::{closure#0} with closure substs [
   8                i16,
   9                for<Region(BrAnon(0, None)), Region(BrAnon(1, None)), Region(BrAnon(2, None)), Region(BrAnon(3, None)), Region(BrAnon(4, None)), Region(BrAnon(5, None))> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon(0, None) }) std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon(1, None) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon(2, None) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon(3, None) }) &'_#2r u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon(4, None) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon(1, None) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon(5, None) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon(3, None) }) u32>)),
  10                (),
  11            ]
  12    = note: late-bound region is '_#3r
  13    = note: late-bound region is '_#4r
  14    = note: number of external vids: 5
  15    = note: where '_#1r: '_#2r
  16
  17 note: no external requirements
  18   --> $DIR/propagate-approximated-ref.rs:42:1
  19    |
  20 LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
  21    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  22    |
  23    = note: defining type: supply
  24
  25 error: lifetime may not live long enough
  26   --> $DIR/propagate-approximated-ref.rs:45:9
  27    |
  28 LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
  29    |           --  -- lifetime `'b` defined here
  30    |           |
  31    |           lifetime `'a` defined here
  32 ...
  33 LL |         demand_y(x, y, x.get())
  34    |         ^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'a` must outlive `'b`
  35    |
  36    = help: consider adding the following bound: `'a: 'b`
  37
  38 error: aborting due to previous error
  39