error: variable `_InappropriateCamelCasing` should have a snake case name --> $DIR/command-line-lint-group-deny.rs:4:9 | LL | let _InappropriateCamelCasing = true; | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `_inappropriate_camel_casing` | = note: `-D non-snake-case` implied by `-D bad-style` = help: to override `-D bad-style` add `#[allow(non_snake_case)]` error: aborting due to 1 previous error