| warning: lifetime parameter `'a` never used | |
| --> $DIR/unused-lifetimes.rs:15:28 | |
| | | |
| LL | pub fn by_value(_x: unsafe<'a> S) -> usize { | |
| | -------^^-- help: elide the unused lifetime | |
| | | |
| note: the lint level is defined here | |
| --> $DIR/unused-lifetimes.rs:5:9 | |
| | | |
| LL | #![warn(unused_lifetimes)] | |
| | ^^^^^^^^^^^^^^^^ | |
| warning: 1 warning emitted | |