warning: assigning the result of `Clone::clone()` may be inefficient --> src/analyzer.rs:354:17 | 354 | simple_inner = ix.type_.clone(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_from()`: `simple_inner.clone_from(&ix.type_)` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assigning_clones = note: `#[warn(clippy::assigning_clones)]` on by default