error[E0453]: allow(non_snake_case) incompatible with previous forbid --> $DIR/E0453.rs:3:9 | LL | #![forbid(non_snake_case)] | -------------- `forbid` level set here LL | LL | #[allow(non_snake_case)] | ^^^^^^^^^^^^^^ overruled by previous forbid error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0453`.