PM3: Need help cloning the proxmark software

Hello all,

I just got my PM3 512mb from DT. Thanks for the great customer service. I am running my PM3 on Homebrew on the mac and am having trouble cloning the RFID repo. If someone can point me in the right way that would be great. When I enter the “brew tap RfidResearchGroup/proxmark3” command the cloning process doesn’t start [see screenshot].