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error[E0658]: const trait impls are experimental
--> $DIR/const_drop_is_valid.rs:6:6
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LL | impl const Drop for A {}
| ^^^^^
|
= 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
warning: the feature `effects` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/const_drop_is_valid.rs:1:12
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LL | #![feature(effects)]
| ^^^^^^^
|
= note: see issue #102090 <https://github.com/rust-lang/rust/issues/102090> for more information
= note: `#[warn(incomplete_features)]` on by default
error: using `#![feature(effects)]` without enabling next trait solver globally
|
= note: the next trait solver must be enabled globally for the effects feature to work correctly
= help: use `-Znext-solver` to enable
error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
--> $DIR/const_drop_is_valid.rs:6:12
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LL | impl const Drop 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[E0046]: not all trait items implemented, missing: `drop`
--> $DIR/const_drop_is_valid.rs:6:1
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LL | impl const Drop for A {}
| ^^^^^^^^^^^^^^^^^^^^^ missing `drop` in implementation
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= help: implement the missing item: `fn drop(&mut self) { todo!() }`
error: aborting due to 4 previous errors; 1 warning emitted
Some errors have detailed explanations: E0046, E0658.
For more information about an error, try `rustc --explain E0046`.
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