error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/normalize-tait-in-const.rs:26:42
   |
LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
   |                                          ^^^^^^^^^^^^^^^^^

error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/normalize-tait-in-const.rs:26:69
   |
LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
   |                                                                     ^^^^^^^^

error[E0015]: cannot call non-const closure in constant functions
  --> $DIR/normalize-tait-in-const.rs:27:5
   |
LL |     fun(filter_positive());
   |     ^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
help: consider further restricting this bound
   |
LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct + ~const Fn(&foo::Alias<'_>)>(fun: F) {
   |                                                                              ++++++++++++++++++++++++++++
help: add `#![feature(effects)]` to the crate attributes to enable
   |
LL + #![feature(effects)]
   |

error[E0493]: destructor of `F` cannot be evaluated at compile-time
  --> $DIR/normalize-tait-in-const.rs:26:79
   |
LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
   |                                                                               ^^^ the destructor for this type cannot be evaluated in constant functions
LL |     fun(filter_positive());
LL | }
   | - value is dropped here

error: aborting due to 4 previous errors

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