error: allow(nonstandard_style) incompatible with previous forbid
  --> $DIR/forbid-group-group-2.rs:7:9
   |
LL | #![forbid(warnings)]
   |           -------- `forbid` level set here
...
LL | #[allow(nonstandard_style)]
   |         ^^^^^^^^^^^^^^^^^ 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 <https://github.com/rust-lang/rust/issues/81670>
note: the lint level is defined here
  --> $DIR/forbid-group-group-2.rs:5:9
   |
LL | #![deny(forbidden_lint_groups)]
   |         ^^^^^^^^^^^^^^^^^^^^^

error: allow(nonstandard_style) incompatible with previous forbid
  --> $DIR/forbid-group-group-2.rs:7:9
   |
LL | #![forbid(warnings)]
   |           -------- `forbid` level set here
...
LL | #[allow(nonstandard_style)]
   |         ^^^^^^^^^^^^^^^^^ 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 <https://github.com/rust-lang/rust/issues/81670>
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`

error: allow(nonstandard_style) incompatible with previous forbid
  --> $DIR/forbid-group-group-2.rs:7:9
   |
LL | #![forbid(warnings)]
   |           -------- `forbid` level set here
...
LL | #[allow(nonstandard_style)]
   |         ^^^^^^^^^^^^^^^^^ 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 <https://github.com/rust-lang/rust/issues/81670>
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`

error: aborting due to 3 previous errors