error: `~const` is not allowed here
  --> $DIR/super-traits-fail-3.rs:23:12
   |
LL | trait Bar: ~const Foo {}
   |            ^^^^^^
   |
note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds
  --> $DIR/super-traits-fail-3.rs:23:1
   |
LL | trait Bar: ~const Foo {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^

error[E0658]: const trait impls are experimental
  --> $DIR/super-traits-fail-3.rs:23:12
   |
LL | trait Bar: ~const Foo {}
   |            ^^^^^^
   |
   = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
   = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: const trait impls are experimental
  --> $DIR/super-traits-fail-3.rs:32:17
   |
LL | const fn foo<T: ~const Bar>(x: &T) {
   |                 ^^^^^^
   |
   = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
   = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/super-traits-fail-3.rs:23:12
   |
LL | trait Bar: ~const Foo {}
   |            ^^^^^^ can't be applied to `Foo`
   |
help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
   |
LL | #[const_trait] trait Foo {
   | ++++++++++++++

error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/super-traits-fail-3.rs:23:12
   |
LL | trait Bar: ~const Foo {}
   |            ^^^^^^ can't be applied to `Foo`
   |
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
   |
LL | #[const_trait] trait Foo {
   | ++++++++++++++

error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/super-traits-fail-3.rs:23:12
   |
LL | trait Bar: ~const Foo {}
   |            ^^^^^^ can't be applied to `Foo`
   |
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
   |
LL | #[const_trait] trait Foo {
   | ++++++++++++++

error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/super-traits-fail-3.rs:32:17
   |
LL | const fn foo<T: ~const Bar>(x: &T) {
   |                 ^^^^^^ can't be applied to `Bar`
   |
help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations
   |
LL | #[const_trait] trait Bar: ~const Foo {}
   | ++++++++++++++

error: `~const` can only be applied to `#[const_trait]` traits
  --> $DIR/super-traits-fail-3.rs:32:17
   |
LL | const fn foo<T: ~const Bar>(x: &T) {
   |                 ^^^^^^ can't be applied to `Bar`
   |
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations
   |
LL | #[const_trait] trait Bar: ~const Foo {}
   | ++++++++++++++

error[E0015]: cannot call non-const method `<T as Foo>::a` in constant functions
  --> $DIR/super-traits-fail-3.rs:36:7
   |
LL |     x.a();
   |       ^^^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error: aborting due to 9 previous errors

Some errors have detailed explanations: E0015, E0658.
For more information about an error, try `rustc --explain E0015`.