Add an additional safety net to coro_pool's shutdown procedure, just to be sure.
Add an additional safety net to coro_pool's shutdown procedure, just to be sure.

sbusso/rethinkdb,Qinusty/rethinkdb,jfriedly/rethinkdb,mcanthony/rethinkdb,greyhwndz/rethinkdb,Qinusty/rethinkdb,yakovenkodenis/rethinkdb,alash3al/rethinkdb,spblightadv/rethinkdb,jesseditson/rethinkdb,alash3al/rethinkdb,sebadiaz/rethinkdb,wujf/rethinkdb,captainpete/rethinkdb,mbroadst/rethinkdb,greyhwndz/rethinkdb,wujf/rethinkdb,wujf/rethinkdb,elkingtonmcb/rethinkdb,JackieXie168/rethinkdb,tempbottle/rethinkdb,victorbriz/rethinkdb,yaolinz/rethinkdb,jfriedly/rethinkdb,sebadiaz/rethinkdb,bpradipt/rethinkdb,victorbriz/rethinkdb,mcanthony/rethinkdb,sontek/rethinkdb,wkennington/rethinkdb,mbroadst/rethinkdb,ayumilong/rethinkdb,bchavez/rethinkdb,gdi2290/rethinkdb,yakovenkodenis/rethinkdb,jmptrader/rethinkdb,yakovenkodenis/rethinkdb,urandu/rethinkdb,KSanthanam/rethinkdb,AntouanK/rethinkdb,niieani/rethinkdb,scripni/rethinkdb,urandu/rethinkdb,yaolinz/rethinkdb,wojons/rethinkdb,eliangidoni/rethinkdb,bpradipt/rethinkdb,jmptrader/rethinkdb,gdi2290/rethinkdb,bchavez/rethinkdb,mbroadst/rethinkdb,ayumilong/rethinkdb,AtnNn/rethinkdb,Wilbeibi/rethinkdb,RubenKelevra/rethinkdb,gavioto/rethinkdb,marshall007/rethinkdb,jesseditson/rethinkdb,robertjpayne/rethinkdb,victorbriz/rethinkdb,wkennington/rethinkdb,matthaywardwebdesign/rethinkdb,nviennot/rethinkdb,Qinusty/rethinkdb,nviennot/rethinkdb,ayumilong/rethinkdb,elkingtonmcb/rethinkdb,jmptrader/rethinkdb,robertjpayne/rethinkdb,robertjpayne/rethinkdb,wkennington/rethinkdb,robertjpayne/rethinkdb,4talesa/rethinkdb,victorbriz/rethinkdb,4talesa/rethinkdb,yakovenkodenis/rethinkdb,nviennot/rethinkdb,catroot/rethinkdb,wojons/rethinkdb,wkennington/rethinkdb,robertjpayne/rethinkdb,victorbriz/rethinkdb,Wilbeibi/rethinkdb,RubenKelevra/rethinkdb,mquandalle/rethinkdb,jmptrader/rethinkdb,mbroadst/rethinkdb,marshall007/rethinkdb,niieani/rethinkdb,mquandalle/rethinkdb,matthaywardwebdesign/rethinkdb,rrampage/rethinkdb,jmptrader/rethinkdb,pap/rethinkdb,RubenKelevra/rethinkdb,Wilbeibi/rethinkdb,sbusso/rethinkdb,KSanthanam/rethinkdb,bchavez/rethinkdb,scripni/rethinkdb,victorbriz/rethinkdb,wujf/rethinkdb,wujf/rethinkdb,rrampage/rethinkdb,greyhwndz/rethinkdb,dparnell/rethinkdb,dparnell/rethinkdb,niieani/rethinkdb,grandquista/rethinkdb,grandquista/rethinkdb,robertjpayne/rethinkdb,mcanthony/rethinkdb,sbusso/rethinkdb,catroot/rethinkdb,ajose01/rethinkdb,pap/rethinkdb,lenstr/rethinkdb,yaolinz/rethinkdb,catroot/rethinkdb,Qinusty/rethinkdb,jesseditson/rethinkdb,jesseditson/rethinkdb,eliangidoni/rethinkdb,ajose01/rethinkdb,ajose01/rethinkdb,yakovenkodenis/rethinkdb,wojons/rethinkdb,wojons/rethinkdb,marshall007/rethinkdb,yaolinz/rethinkdb,scripni/rethinkdb,Qinusty/rethinkdb,AtnNn/rethinkdb,Wilbeibi/rethinkdb,sebadiaz/rethinkdb,matthaywardwebdesign/rethinkdb,tempbottle/rethinkdb,dparnell/rethinkdb,AtnNn/rethinkdb,losywee/rethinkdb,ajose01/rethinkdb,Qinusty/rethinkdb,sbusso/rethinkdb,niieani/rethinkdb,jmptrader/rethinkdb,spblightadv/rethinkdb,ayumilong/rethinkdb,jfriedly/rethinkdb,tempbottle/rethinkdb,JackieXie168/rethinkdb,pap/rethinkdb,JackieXie168/rethinkdb,losywee/rethinkdb,jfriedly/rethinkdb,jfriedly/rethinkdb,mcanthony/rethinkdb,jfriedly/rethinkdb,ayumilong/rethinkdb,KSanthanam/rethinkdb,niieani/rethinkdb,wujf/rethinkdb,alash3al/rethinkdb,matthaywardwebdesign/rethinkdb,scripni/rethinkdb,alash3al/rethinkdb,dparnell/rethinkdb,matthaywardwebdesign/rethinkdb,JackieXie168/rethinkdb,Wilbeibi/rethinkdb,RubenKelevra/rethinkdb,captainpete/rethinkdb,gdi2290/rethinkdb,yaolinz/rethinkdb,captainpete/rethinkdb,tempbottle/rethinkdb,KSanthanam/rethinkdb,RubenKelevra/rethinkdb,rrampage/rethinkdb,eliangidoni/rethinkdb,sontek/rethinkdb,scripni/rethinkdb,yaolinz/rethinkdb,gdi2290/rethinkdb,mcanthony/rethinkdb,grandquista/rethinkdb,lenstr/rethinkdb,greyhwndz/rethinkdb,AtnNn/rethinkdb,captainpete/rethinkdb,rrampage/rethinkdb,ayumilong/rethinkdb,grandquista/rethinkdb,ajose01/rethinkdb,sbusso/rethinkdb,4talesa/rethinkdb,jesseditson/rethinkdb,urandu/rethinkdb,marshall007/rethinkdb,mcanthony/rethinkdb,mbroadst/rethinkdb,elkingtonmcb/rethinkdb,victorbriz/rethinkdb,catroot/rethinkdb,lenstr/rethinkdb,jfriedly/rethinkdb,AtnNn/rethinkdb,AntouanK/rethinkdb,elkingtonmcb/rethinkdb,bchavez/rethinkdb,eliangidoni/rethinkdb,lenstr/rethinkdb,greyhwndz/rethinkdb,marshall007/rethinkdb,AntouanK/rethinkdb,rrampage/rethinkdb,tempbottle/rethinkdb,ayumilong/rethinkdb,mbroadst/rethinkdb,JackieXie168/rethinkdb,scripni/rethinkdb,losywee/rethinkdb,spblightadv/rethinkdb,AtnNn/rethinkdb,dparnell/rethinkdb,matthaywardwebdesign/rethinkdb,yaolinz/rethinkdb,captainpete/rethinkdb,urandu/rethinkdb,tempbottle/rethinkdb,KSanthanam/rethinkdb,losywee/rethinkdb,greyhwndz/rethinkdb,RubenKelevra/rethinkdb,gavioto/rethinkdb,mcanthony/rethinkdb,bpradipt/rethinkdb,captainpete/rethinkdb,elkingtonmcb/rethinkdb,pap/rethinkdb,mquandalle/rethinkdb,mcanthony/rethinkdb,victorbriz/rethinkdb,spblightadv/rethinkdb,mquandalle/rethinkdb,sontek/rethinkdb,gavioto/rethinkdb,greyhwndz/rethinkdb,captainpete/rethinkdb,sontek/rethinkdb,wojons/rethinkdb,dparnell/rethinkdb,urandu/rethinkdb,mquandalle/rethinkdb,4talesa/rethinkdb,grandquista/rethinkdb,spblightadv/rethinkdb,spblightadv/rethinkdb,AntouanK/rethinkdb,eliangidoni/rethinkdb,RubenKelevra/rethinkdb,pap/rethinkdb,marshall007/rethinkdb,catroot/rethinkdb,grandquista/rethinkdb,jfriedly/rethinkdb,AntouanK/rethinkdb,mquandalle/rethinkdb,mquandalle/rethinkdb,lenstr/rethinkdb,catroot/rethinkdb,mbroadst/rethinkdb,bpradipt/rethinkdb,4talesa/rethinkdb,sontek/rethinkdb,losywee/rethinkdb,grandquista/rethinkdb,gavioto/rethinkdb,elkingtonmcb/rethinkdb,spblightadv/rethinkdb,gavioto/rethinkdb,sebadiaz/rethinkdb,robertjpayne/rethinkdb,sebadiaz/rethinkdb,elkingtonmcb/rethinkdb,ajose01/rethinkdb,catroot/rethinkdb,JackieXie168/rethinkdb,AntouanK/rethinkdb,yakovenkodenis/rethinkdb,AtnNn/rethinkdb,niieani/rethinkdb,sbusso/rethinkdb,alash3al/rethinkdb,alash3al/rethinkdb,nviennot/rethinkdb,jmptrader/rethinkdb,jesseditson/rethinkdb,jmptrader/rethinkdb,sontek/rethinkdb,elkingtonmcb/rethinkdb,yakovenkodenis/rethinkdb,jesseditson/rethinkdb,wojons/rethinkdb,wojons/rethinkdb,Qinusty/rethinkdb,urandu/rethinkdb,KSanthanam/rethinkdb,nviennot/rethinkdb,sontek/rethinkdb,losywee/rethinkdb,nviennot/rethinkdb,dparnell/rethinkdb,4talesa/rethinkdb,wujf/rethinkdb,gavioto/rethinkdb,ajose01/rethinkdb,wkennington/rethinkdb,eliangidoni/rethinkdb,marshall007/rethinkdb,scripni/rethinkdb,wkennington/rethinkdb,tempbottle/rethinkdb,nviennot/rethinkdb,Wilbeibi/rethinkdb,jesseditson/rethinkdb,AtnNn/rethinkdb,eliangidoni/rethinkdb,Wilbeibi/rethinkdb,bpradipt/rethinkdb,bchavez/rethinkdb,rrampage/rethinkdb,bchavez/rethinkdb,urandu/rethinkdb,gdi2290/rethinkdb,gdi2290/rethinkdb,bpradipt/rethinkdb,sebadiaz/rethinkdb,bchavez/rethinkdb,gavioto/rethinkdb,AntouanK/rethinkdb,4talesa/rethinkdb,RubenKelevra/rethinkdb,losywee/rethinkdb,mbroadst/rethinkdb,niieani/rethinkdb,wkennington/rethinkdb,robertjpayne/rethinkdb,KSanthanam/rethinkdb,greyhwndz/rethinkdb,captainpete/rethinkdb,wkennington/rethinkdb,JackieXie168/rethinkdb,robertjpayne/rethinkdb,marshall007/rethinkdb,bpradipt/rethinkdb,losywee/rethinkdb,mbroadst/rethinkdb,niieani/rethinkdb,spblightadv/rethinkdb,JackieXie168/rethinkdb,matthaywardwebdesign/rethinkdb,grandquista/rethinkdb,sbusso/rethinkdb,scripni/rethinkdb,AntouanK/rethinkdb,pap/rethinkdb,rrampage/rethinkdb,lenstr/rethinkdb,grandquista/rethinkdb,Wilbeibi/rethinkdb,alash3al/rethinkdb,wojons/rethinkdb,dparnell/rethinkdb,tempbottle/rethinkdb,alash3al/rethinkdb,yakovenkodenis/rethinkdb,sbusso/rethinkdb,lenstr/rethinkdb,Qinusty/rethinkdb,Qinusty/rethinkdb,ayumilong/rethinkdb,nviennot/rethinkdb,JackieXie168/rethinkdb,gavioto/rethinkdb,sebadiaz/rethinkdb,yaolinz/rethinkdb,sontek/rethinkdb,pap/rethinkdb,bchavez/rethinkdb,pap/rethinkdb,ajose01/rethinkdb,dparnell/rethinkdb,eliangidoni/rethinkdb,bchavez/rethinkdb,lenstr/rethinkdb,4talesa/rethinkdb,rrampage/rethinkdb,gdi2290/rethinkdb,eliangidoni/rethinkdb,bpradipt/rethinkdb,matthaywardwebdesign/rethinkdb,KSanthanam/rethinkdb,mquandalle/rethinkdb,catroot/rethinkdb,bpradipt/rethinkdb,urandu/rethinkdb,sebadiaz/rethinkdb