error: variable `A` should have a snake case name --> $DIR/forbid-group-group-1.rs:11:9 | LL | let A: (); | ^ help: convert the identifier to snake case: `a` | note: the lint level is defined here --> $DIR/forbid-group-group-1.rs:4:11 | LL | #![forbid(nonstandard_style)] | ^^^^^^^^^^^^^^^^^ = note: `#[forbid(non_snake_case)]` implied by `#[forbid(nonstandard_style)]` error: aborting due to 1 previous error