maybe non-racing

[massemanet]

I am hereby notifying the devs about this.

* Warning: The following pair of instructions is not explicitly marked as non-racing
 in Concuerror's internals:                                                        
  1) expires, delivering {timeout,#Ref<0.3207513675.2509242369.185064>,<0.118.0>} to
 <0.123.0>                                                                         
  2) [<0.105.0>,<0.118.0>] = erlang:process_info(<0.104.0>, links)
 Please notify the developers to add info about this pair.