error[E0493]: destructor of `T` cannot be evaluated at compile-time
  --> $DIR/const-drop.rs:19:32
   |
LL | const fn a<T: ~const Destruct>(_: T) {}
   |                                ^      - value is dropped here
   |                                |
   |                                the destructor for this type cannot be evaluated in constant functions

error[E0493]: destructor of `S<'_>` cannot be evaluated at compile-time
  --> $DIR/const-drop.rs:24:13
   |
LL |     let _ = S(&mut c);
   |             ^^^^^^^^^- value is dropped here
   |             |
   |             the destructor for this type cannot be evaluated in constant functions

error[E0015]: cannot call non-const fn `<T as SomeTrait>::foo` in constant functions
  --> $DIR/const-drop.rs:70:13
   |
LL |             T::foo();
   |             ^^^^^^^^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0015, E0493.
For more information about an error, try `rustc --explain E0015`.