Error code E0572

A return statement was found outside of a function body.

Erroneous code example:

const FOO: u32 = return 0; // error: return statement outside of function body

fn main() {}

To fix this issue, just remove the return keyword or move the expression into a function. Example:

const FOO: u32 = 0;

fn some_fn() -> u32 {
    return FOO;

fn main() {