A loop keyword (break or continue) was used outside of a loop.

Erroneous code example:

fn some_func() {
    break; // error: `break` outside of a loop
}

Without a loop to break out of or continue in, no sensible action can be taken. Please verify that you are using break and continue only in loops. Example:

fn some_func() {
    for _ in 0..10 {
        break; // ok!
    }
}