error: variable `_InappropriateCamelCasing` should have a snake case name --> $DIR/command-line-lint-group-forbid.rs:4:9 | LL | let _InappropriateCamelCasing = true; | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `_inappropriate_camel_casing` | = note: `-F non-snake-case` implied by `-F bad-style` error: aborting due to previous error