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error: `[const]` is not allowed here
--> const-super-trait.rs:7:12
|
LL | trait Bar: [const] Foo {}
| ^^^^^^^
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note: this trait is not `const`, so it cannot have `[const]` trait bounds
--> const-super-trait.rs:7:1
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LL | trait Bar: [const] Foo {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error: `[const]` can only be applied to `const` traits
--> const-super-trait.rs:7:12
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LL | trait Bar: [const] Foo {}
| ^^^^^^^ can't be applied to `Foo`
|
help: mark `Foo` as `const` to allow it to have `const` implementations
|
LL | #[const_trait] trait Foo {
| ++++++++++++++
error: `[const]` can only be applied to `const` traits
--> const-super-trait.rs:9:17
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LL | const fn foo<T: [const] Bar>(x: &T) {
| ^^^^^^^ can't be applied to `Bar`
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help: mark `Bar` as `const` 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
--> const-super-trait.rs:10:7
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LL | x.a();
| ^^^
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= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0015`.
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