rust/tests/ui/const-generics/issue-93647.stderr

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error[E0015]: cannot call non-const closure in constants
--> $DIR/issue-93647.rs:2:5
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LL | (||1usize)()
| ^^^^^^^^^^^^
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= note: closures need an RFC before allowed to be called in constants
= note: calls in constants are limited to constant functions, tuple structs and tuple variants
help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
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LL + #![feature(const_trait_impl)]
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error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0015`.