%Warning-WIDTHTRUNC: t/t_flag_wfatal.v:10:19: Operator ASSIGNW expects 4 bits on the Assign RHS, but Assign RHS's CONST '6'h2e' generates 6 bits.
                                            : ... note: In instance 't'
   10 |    wire [3:0] foo = 6'h2e;
      |                   ^
                     ... For warning description see https://verilator.org/warn/WIDTHTRUNC?v=latest
                     ... Use "/* verilator lint_off WIDTHTRUNC */" and lint_on around source to disable this message.