| error[E0015]: cannot call non-const function `xyz` in constants | |
| --> $DIR/issue-43105.rs:3:17 | |
| | | |
| LL | const NUM: u8 = xyz(); | |
| | ^^^^^ | |
| | | |
| = note: calls in constants are limited to constant functions, tuple structs and tuple variants | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0015`. |