1 error[E0277]: cannot add `()` to `usize`
2 --> $DIR/issue-13352.rs:7:13
4 LL | 2_usize + (loop {});
5 | ^ no implementation for `usize + ()`
7 = help: the trait `Add<()>` is not implemented for `usize`
8 = help: the following other types implement trait `Add<Rhs>`:
9 <&'a usize as Add<usize>>
10 <&usize as Add<&usize>>
11 <usize as Add<&usize>>
14 error: aborting due to previous error
16 For more information about this error, try `rustc --explain E0277`.