| error: lifetime may not live long enough |
| --> $DIR/regions-variance-invariant-use-covariant.rs:17:12 |
| | |
| LL | fn use_<'b>(c: Invariant<'b>) { |
| | -- lifetime `'b` defined here |
| ... |
| LL | let _: Invariant<'static> = c; |
| | ^^^^^^^^^^^^^^^^^^ type annotation requires that `'b` must outlive `'static` |
| | |
| = note: requirement occurs because of the type `Invariant<'_>`, which makes the generic argument `'_` invariant |
| = note: the struct `Invariant<'a>` is invariant over the parameter `'a` |
| = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance |
| |
| error: aborting due to 1 previous error |
| |
