1 error[E0369]: binary operation `*` cannot be applied to type `Thing`
2 --> $DIR/issue-3820.rs:24:13
4 LL | let w = u * 3; //~ ERROR binary operation `*` cannot be applied to type `Thing`
7 = note: an implementation of `std::ops::Mul` might be missing for `Thing`
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0369`.