warning: redundant closure --> main/src/export_abi.rs:82:18 | 82 | .map(|constructor| Some(constructor)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `Some` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure = note: `#[warn(clippy::redundant_closure)]` on by default