tests/ui/internal/internal-unstable-const.stderr

   1 error: const-stable function cannot use `#[feature(const_fn_floating_point_arithmetic)]`
   2   --> $DIR/internal-unstable-const.rs:10:5
   3    |
   4 LL |     1.0 + 1.0
   5    |     ^^^^^^^^^
   6    |
   7 help: if it is not part of the public API, make this function unstably const
   8    |
   9 LL + #[rustc_const_unstable(feature = "...", issue = "...")]
  10 LL | pub const fn foo() -> f32 {
  11    |
  12 help: otherwise `#[rustc_allow_const_fn_unstable]` can be used to bypass stability checks
  13    |
  14 LL + #[rustc_allow_const_fn_unstable(const_fn_floating_point_arithmetic)]
  15 LL | pub const fn foo() -> f32 {
  16    |
  17
  18 error: aborting due to previous error
  19