error[E0658]: `dyn*` trait objects are experimental
  --> $DIR/feature-gate-dyn_star.rs:5:31
   |
LL | pub fn dyn_star_parameter(_: &dyn* Send) {
   |                               ^^^^
   |
   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
   = help: add `#![feature(dyn_star)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0658`.