error: `~const` is not allowed here
  --> $DIR/tilde-const-and-const-params.rs:25:11
   |
LL | fn bar<A: ~const Add42, const N: usize>(_: Foo<N>) -> Foo<{ A::add(N) }> {
   |           ^^^^^^^^^^^^
   |
note: this function is not `const`, so it cannot have `~const` trait bounds
  --> $DIR/tilde-const-and-const-params.rs:25:4
   |
LL | fn bar<A: ~const Add42, const N: usize>(_: Foo<N>) -> Foo<{ A::add(N) }> {
   |    ^^^

error[E0015]: cannot call non-const fn `<A as Add42>::add` in constants
  --> $DIR/tilde-const-and-const-params.rs:25:61
   |
LL | fn bar<A: ~const Add42, const N: usize>(_: Foo<N>) -> Foo<{ A::add(N) }> {
   |                                                             ^^^^^^^^^
   |
   = note: calls in constants are limited to constant functions, tuple structs and tuple variants

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0015`.