warning: the feature `lazy_normalization_consts` is incomplete and may not be safe to use and/or cause compiler crashes
  --> $DIR/promoted-function-2.rs:4:12
   |
LL | #![feature(lazy_normalization_consts, rustc_attrs)]
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(incomplete_features)]` on by default
   = note: see issue #72219 <https://github.com/rust-lang/rust/issues/72219> for more information

error: item has unused generic parameters
  --> $DIR/promoted-function-2.rs:8:4
   |
LL | fn test<T>() {
   |    ^^^^ - generic parameter `T` is unused

error: aborting due to previous error; 1 warning emitted