1 error: lifetime may not live long enough
2 --> $DIR/variance-cell-is-invariant.rs:14:12
4 LL | fn use_<'short,'long>(c: Foo<'short>,
5 | ------ ----- lifetime `'long` defined here
7 | lifetime `'short` defined here
9 LL | let _: Foo<'long> = c;
10 | ^^^^^^^^^^ type annotation requires that `'short` must outlive `'long`
12 = help: consider adding the following bound: `'short: 'long`
13 = note: requirement occurs because of the type Foo<'_>, which makes the generic argument '_ invariant
14 = note: the struct Foo<'a> is invariant over the parameter 'a
15 = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
17 error: aborting due to previous error