%Warning-WIDTH: t/t_flag_wfatal.v:9: Operator ASSIGNW expects 4 bits on the Assign RHS, but Assign RHS's CONST '6'h2e' generates 6 bits.
                                   : ... In instance t
   wire [3:0] foo = 6'h2e;
                  ^
                ... Use "/* verilator lint_off WIDTH */" and lint_on around source to disable this message.