error: some variants are not matched explicitly
  --> $DIR/omitted-patterns-dont-lint-on-arm.rs:15:11
   |
LL |     match val {
   |           ^^^ pattern `NonExhaustiveEnum::Struct { .. }` not covered
   |
   = help: ensure that all variants are matched explicitly by adding the suggested match arms
   = note: the matched value is of type `NonExhaustiveEnum` and the `non_exhaustive_omitted_patterns` attribute was found
note: the lint level is defined here
  --> $DIR/omitted-patterns-dont-lint-on-arm.rs:14:12
   |
LL |     #[deny(non_exhaustive_omitted_patterns)]
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: the lint level must be set on the whole match
  --> $DIR/omitted-patterns-dont-lint-on-arm.rs:34:9
   |
LL |         #[deny(non_exhaustive_omitted_patterns)]
   |                ------------------------------- remove this attribute
LL |         _ => {}
   |         ^
   |
   = help: it no longer has any effect to set the lint level on an individual match arm
help: set the lint level on the whole match
   |
LL +     #[deny(non_exhaustive_omitted_patterns)]
LL |     match val {
   |

error: aborting due to 1 previous error; 1 warning emitted