anchor.diff:                                  filename=Filename, tref=TRef}=State) ->
       {ok, cancel} = timer:cancel(TRef),
       record(Clock, Size, Clients, Filename, Lines),
  -    lager:info("Instrumentation timer for ~p disabled!", [Type]),
  +    _ = lager:info("Instrumentation timer for ~p disabled!", [Type]),
       {reply, ok, State#state{tref=undefined}};
   
   %% @private
   handle_call(Msg, _From, State) ->
  -    lager:warning("Unhandled messages: ~p", [Msg]),
  +    _ = lager:warning("Unhandled messages: ~p", [Msg]),
       {reply, ok, State}.
   
   %% @private
   -spec handle_cast(term(), #state{}) -> {noreply, #state{}}.
   handle_cast(Msg, State) ->
  -    lager:warning("Unhandled messages: ~p", [Msg]),
  +    _ = lager:warning("Unhandled messages: ~p", [Msg]),
       {noreply, State}.
   
   %% @private
  
positive.code:     {noreply, State#state{tref=TRef, clock=Clock, lines=Lines}};
  
  handle_info(Msg, State) ->
      lager:warning("Unhandled messages: ~p", [Msg]),
      {noreply, State}.
  
  %% @private
  
negative.code: 
  handle_call({log, Term, _Node}, _From, #state{type=_Type, size=Size0}=State) ->
      Size = termsize(Term),
      {reply, ok, State#state{size=Size0 + Size}};
  
  handle_call({start, Filename, Clients}, _From, #state{type=Type}=State) ->
      {ok, TRef} = start_timer(),
      _ = lager:info("Instrumentation timer for ~p enabled!", [Type]),
      {reply, ok, State#state{tref=TRef, clock=0, clients=Clients,
                              filename=Filename, status=running, size=0,
                              lines = []}};
  