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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 LL | |         // Only works if 'x: 'y:
7 LL | |         demand_y(x, y, x.get())
8 LL | |
9 LL | |     });
10    | |_____^
11    |
12    = note: defining type: DefId(0:16 ~ propagate_approximated_ref[317d]::supply[0]::{{closure}}[0]) with closure substs [
13                i16,
14                for<'r, 's, 't0, 't1, 't2, 't3> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 'r)) std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 't0)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 't1)) &'_#2r u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 't2)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 't3)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0), 't1)) u32>)),
15            ]
16    = note: late-bound region is '_#3r
17    = note: late-bound region is '_#4r
18    = note: number of external vids: 5
19    = note: where '_#1r: '_#2r
20
21 note: No external requirements
22   --> $DIR/propagate-approximated-ref.rs:42:1
23    |
24 LL | / fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
25 LL | |     establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y| {
26 LL | |         // Only works if 'x: 'y:
27 LL | |         demand_y(x, y, x.get())
28 LL | |
29 LL | |     });
30 LL | | }
31    | |_^
32    |
33    = note: defining type: DefId(0:13 ~ propagate_approximated_ref[317d]::supply[0]) with substs []
34
35 error: lifetime may not live long enough
36   --> $DIR/propagate-approximated-ref.rs:45:9
37    |
38 LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) {
39    |           --  -- lifetime `'b` defined here
40    |           |
41    |           lifetime `'a` defined here
42 ...
43 LL |         demand_y(x, y, x.get())
44    |         ^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'a` must outlive `'b`
45    |
46    = help: consider adding the following bound: `'a: 'b`
47
48 error: aborting due to previous error
49