error: const function that might be (indirectly) exposed to stable cannot use `#[feature(const_eval_select)]`
  --> $DIR/const-eval-select-stability.rs:17:5
   |
LL |     const_eval_select((), nothing, log);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: if the function is not (yet) meant to be exposed to stable, add `#[rustc_const_unstable]` (this is what you probably want to do)
   |
LL + #[rustc_const_unstable(feature = "...", issue = "...")]
LL | pub const fn hey() {
   |
help: otherwise, as a last resort `#[rustc_allow_const_fn_unstable]` can be used to bypass stability checks (this requires team approval)
   |
LL + #[rustc_allow_const_fn_unstable(const_eval_select)]
LL | pub const fn hey() {
   |

error: aborting due to 1 previous error