warning: allow(unused_variables) incompatible with previous forbid --> $DIR/forbid-group-member.rs:8:9 | LL | #![forbid(unused)] | ------ `forbid` level set here LL | LL | #[allow(unused_variables)] | ^^^^^^^^^^^^^^^^ overruled by previous forbid | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #81670 = note: `#[warn(forbidden_lint_groups)]` on by default warning: 1 warning emitted