`arc1.rs` has an extraneous import

[mlhetland]

In arc1.rs, the following lines appear:

// Don't change the lines below.
#![forbid(unused_imports)]
use core::num;
use std::{sync::Arc, thread};

As far as I could see, there is no relevant way of using core::num. And in the solution file, this has, in fact, been modified to the following:

// Don't change the lines below.
#![forbid(unused_imports)]
use std::{sync::Arc, thread};

So I'm assuming use core::num; should be removed from the exercise?

[mo8it]

I can't find it in the official exercise and solution. It is possible that you or your language server added it while working on the exercise.

[mlhetland]

Indeed! I can confirm that the original file on my end did not have this line, either. Must have been an autocomplete that I didn't notice. Sorry about that!