%Error: t/t_stream_bad.v:12:32: Expecting expression to be constant, but can't convert a RAND to constant.
                              : ... In instance t
   12 |    initial packed_data_32 = {<<$random{byte_in}};
      |                                ^~~~~~~
%Error: t/t_stream_bad.v:12:30: Slice size isn't a constant or basic data type.
                              : ... In instance t
   12 |    initial packed_data_32 = {<<$random{byte_in}};
      |                              ^~
%Warning-WIDTHEXPAND: t/t_stream_bad.v:12:27: Operator ASSIGN expects 32 bits on the Assign RHS, but Assign RHS's STREAML generates 8 bits.
                                            : ... In instance t
   12 |    initial packed_data_32 = {<<$random{byte_in}};
      |                           ^
                      ... For warning description see https://verilator.org/warn/WIDTHEXPAND?v=latest
                      ... Use "/* verilator lint_off WIDTHEXPAND */" and lint_on around source to disable this message.
%Error: Exiting due to
