rust/tests/ui/rfcs/rfc-2632-const-trait-impl/const_derives/derive-const-use.stderr

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2023-04-16 06:12:37 -05:00
error[E0635]: unknown feature `const_cmp`
--> $DIR/derive-const-use.rs:2:30
|
LL | #![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
| ^^^^^^^^^
error[E0635]: unknown feature `const_default_impls`
--> $DIR/derive-const-use.rs:2:41
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LL | #![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
| ^^^^^^^^^^^^^^^^^^^
error: const `impl` for trait `Default` which is not marked with `#[const_trait]`
--> $DIR/derive-const-use.rs:6:12
|
LL | impl const Default for A {
| ^^^^^^^
|
= note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
= note: adding a non-const method body in the future would be a breaking change
error: const `impl` for trait `PartialEq` which is not marked with `#[const_trait]`
--> $DIR/derive-const-use.rs:10:12
|
LL | impl const PartialEq for A {
| ^^^^^^^^^
|
= note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
= note: adding a non-const method body in the future would be a breaking change
error: const `impl` for trait `Default` which is not marked with `#[const_trait]`
--> $DIR/derive-const-use.rs:14:16
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LL | #[derive_const(Default, PartialEq)]
| ^^^^^^^
|
= note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
= note: adding a non-const method body in the future would be a breaking change
= note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info)
error: const `impl` for trait `PartialEq` which is not marked with `#[const_trait]`
--> $DIR/derive-const-use.rs:14:25
|
LL | #[derive_const(Default, PartialEq)]
| ^^^^^^^^^
|
= note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
= note: adding a non-const method body in the future would be a breaking change
= note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 6 previous errors
For more information about this error, try `rustc --explain E0635`.