warning: redundant custom option setting syntax
   --> testdata/options/redundant_fqn.proto:23:12
    |
 23 |     option (google.protobuf.MessageOptions.deprecated) = true;
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |             |
    |             this field is not a message extension
    |
   ::: <built-in>/google/protobuf/descriptor.proto:617:17
    |
617 |   optional bool deprecated = 3 [default = false];
    |                 ----------
    |                  |
    |                  field declared inside of `google.protobuf.MessageOptions` here
    |
   ::: testdata/options/redundant_fqn.proto:23:12
   help: replace `(...)` with a field name
    |
 23 | -     option (google.protobuf.MessageOptions.deprecated) = true;
 23 | +     option deprecated = true;
    |
    |
    = help: custom option setting syntax should only be used with message
            extensions

encountered 1 warning
