| error[E0015]: cannot call non-const closure in constants | |
| --> $DIR/issue-102985.rs:6:14 | |
| | | |
| LL | n => n(), | |
| | ^^^ | |
| | | |
| = 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(effects)]` to the crate attributes to enable | |
| | | |
| LL + #![feature(effects)] | |
| | | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0015`. |