| note: external requirements |
| --> $DIR/propagate-approximated-shorter-to-static-wrong-bound.rs:35:47 |
| | |
| LL | establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y| { |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| | |
| = note: defining type: supply::{closure#0} with closure args [ |
| i16, |
| for<Region(BrAnon(None)), Region(BrAnon(None)), Region(BrAnon(None)), Region(BrAnon(None)), Region(BrAnon(None)), Region(BrAnon(None))> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon(None) }) std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon(None) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon(None) }) std::cell::Cell<&'?2 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon(None) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon(None) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon(None) }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon(None) }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon(None) }) u32>)), |
| (), |
| ] |
| = note: late-bound region is '?3 |
| = note: late-bound region is '?4 |
| = note: number of external vids: 5 |
| = note: where '?1: '?0 |
| |
| note: no external requirements |
| --> $DIR/propagate-approximated-shorter-to-static-wrong-bound.rs:34:1 |
| | |
| LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) { |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| | |
| = note: defining type: supply |
| |
| error[E0521]: borrowed data escapes outside of function |
| --> $DIR/propagate-approximated-shorter-to-static-wrong-bound.rs:35:5 |
| | |
| LL | fn supply<'a, 'b>(cell_a: Cell<&'a u32>, cell_b: Cell<&'b u32>) { |
| | -- ------ `cell_a` is a reference that is only valid in the function body |
| | | |
| | lifetime `'a` defined here |
| LL | / establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y| { |
| LL | | |
| LL | | |
| LL | | // Only works if 'x: 'y: |
| LL | | demand_y(x, y, x.get()) |
| LL | | }); |
| | | ^ |
| | | | |
| | |______`cell_a` escapes the function body here |
| | argument requires that `'a` must outlive `'static` |
| | |
| = note: requirement occurs because of the type `Cell<&'?10 u32>`, which makes the generic argument `&'?10 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 previous error |
| |
| For more information about this error, try `rustc --explain E0521`. |