| error[E0015]: cannot call non-const closure in constants |
| --> $DIR/issue-68542-closure-in-array-len.rs:6:13 |
| | |
| LL | a: [(); (|| { 0 })()] |
| | ^^^^^^^^^^^^ |
| | |
| = 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 |
| | |
| LL + #![feature(const_trait_impl)] |
| | |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0015`. |