1 warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
2 --> $DIR/return.rs:3:12
4 LL | #![feature(dyn_star)]
7 = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
8 = note: `#[warn(incomplete_features)]` on by default
10 warning: 1 warning emitted