| error[E0412]: cannot find type `Missing` in this scope | |
| --> $DIR/unconstrained-lifetimes.rs:6:17 | |
| | | |
| LL | async fn foo(_: Missing<'_>) {} | |
| | ^^^^^^^ not found in this scope | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0412`. |