%Error-WIDTH: t/t_flag_werror.v:10:19: Operator ASSIGNW expects 4 bits on the Assign RHS, but Assign RHS's CONST '6'h2e' generates 6 bits.
                                     : ... In instance t
   10 |    wire [3:0] foo = 6'h2e;
      |                   ^
              ... For error description see https://verilator.org/warn/WIDTH?v=latest
%Error: Exiting due to
