error[E0080]: evaluation of constant value failed
  --> $DIR/const_fn_target_feature.rs:10:24
   |
LL | const B: () = unsafe { avx2_fn() };
   |                        ^^^^^^^^^ calling a function that requires unavailable target features: avx2

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.