note: no external requirements --> $DIR/propagate-fail-to-approximate-longer-wrong-bounds.rs:39:47 | LL | establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y| { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: defining type: supply::{closure#0} with closure args [ i16, for extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?1 u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) &'?2 u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?3 = note: late-bound region is '?4 error: lifetime may not live long enough --> $DIR/propagate-fail-to-approximate-longer-wrong-bounds.rs:41:9 | LL | establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y| { | ---------- ---------- has type `&'?8 Cell<&'2 &'?2 u32>` | | | has type `&'?6 Cell<&'1 &'?1 u32>` LL | // Only works if 'x: 'y: LL | demand_y(x, y, x.get()) | ^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'1` must outlive `'2` note: no external requirements --> $DIR/propagate-fail-to-approximate-longer-wrong-bounds.rs:38:1 | LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: defining type: supply error: aborting due to previous error