%Error-NOTIMING: t/t_event_control.v:14:7: Event control statement in this location requires --timing
                                         : ... In instance t
                                         : ... With --no-timing, suggest have one event control statement per procedure, at the top of the procedure
   14 |       @(clk);
      |       ^
                 ... For error description see https://verilator.org/warn/NOTIMING?v=latest
%Error-NOTIMING: t/t_event_control.v:16:7: Event control statement in this location requires --timing
                                         : ... In instance t
                                         : ... With --no-timing, suggest have one event control statement per procedure, at the top of the procedure
   16 |       @(clk);
      |       ^
%Error: Exiting due to