the trait for<'r> FnMut<(&'r char,)> is not implemented for char

[Tros-t]

I was aplitting a vector and when I tried to debug print it.
It resulted in an error:

My Code:

let splitted_vec = be.splitn(2, '-');
            for i in splitted_vec {
                println!("{:?}",i);
}

The error:

let splitted_vec = be.splitn(2, '-');
   |                                             ^^^ expected an `FnMut<(&char,)>` closure, found `char`
   |
   = help: the trait `for<'r> FnMut<(&'r char,)>` is not implemented for `char`

My program is the answer for advenofcode day two, and i am still working on it.
I want the program as simple as possible because I kind of have to present it to someone.

[jyn514]

MCVE:

fn main() {
    let be = vec!['a', 'b', 'c'];
    let splitted_vec = be.splitn(3, '-');
    for i in splitted_vec {
        println!("{:?}",i);
    }
}

Vec::split takes a closure, not a string: https://doc.rust-lang.org/std/vec/struct.Vec.html#method.splitn. You probably want String::split instead: https://doc.rust-lang.org/std/string/struct.String.html#method.splitn.