1 note: no external requirements
2 --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:21:15
4 LL | foo(cell, |cell_a, cell_x| {
7 = note: defining type: case1::{closure#0} with closure substs [
9 for<Region(BrAnon(None))> extern "rust-call" fn((std::cell::Cell<&'_#1r u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon(None) }) u32>)),
13 error[E0521]: borrowed data escapes outside of closure
14 --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:22:9
16 LL | foo(cell, |cell_a, cell_x| {
17 | ------ ------ `cell_x` is a reference that is only valid in the closure body
19 | `cell_a` declared here, outside of the closure body
20 LL | cell_a.set(cell_x.get()); // forces 'x: 'a, error in closure
21 | ^^^^^^^^^^^^^^^^^^^^^^^^ `cell_x` escapes the closure body here
23 note: no external requirements
24 --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:18:1
29 = note: defining type: case1
31 note: external requirements
32 --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:35:15
34 LL | foo(cell, |cell_a, cell_x| {
37 = note: defining type: case2::{closure#0} with closure substs [
39 for<Region(BrAnon(None))> extern "rust-call" fn((std::cell::Cell<&'_#1r u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon(None) }) u32>)),
42 = note: number of external vids: 2
43 = note: where '_#1r: '_#0r
45 note: no external requirements
46 --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:28:1
51 = note: defining type: case2
53 error[E0597]: `a` does not live long enough
54 --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:30:26
57 | - binding `a` declared here
58 LL | let cell = Cell::new(&a);
59 | ^^ borrowed value does not live long enough
61 LL | / foo(cell, |cell_a, cell_x| {
62 LL | | cell_x.set(cell_a.get()); // forces 'a: 'x, implies 'a = 'static -> borrow error
64 | |______- argument requires that `a` is borrowed for `'static`
66 | - `a` dropped here while still borrowed
68 error: aborting due to 2 previous errors
70 Some errors have detailed explanations: E0521, E0597.
71 For more information about an error, try `rustc --explain E0521`.