properly initialize activeWorkers
properly initialize activeWorkers

mtlynch/Sia,NebulousLabs/Sia,mnsl/Sia,mharkus/Sia,ChrisSchinnerl/Sia,MrStrong/Sia,NebulousLabs/Sia,MrStrong/Sia,mnsl/Sia,ericflo/Sia,mtlynch/Sia,ChrisSchinnerl/Sia,ericflo/Sia,mharkus/Sia