setup_venv: Give up if virtualenv-clone isn't working.
setup_venv: Give up if virtualenv-clone isn't working.

virtualenv-clone can sometimes fail if the old virtualenv is
broken; in that case, we can just make a new one.

isht3/zulip,showell/zulip,punchagan/zulip,j831/zulip,samatdav/zulip,mahim97/zulip,synicalsyntax/zulip,brockwhittaker/zulip,amyliu345/zulip,brockwhittaker/zulip,dhcrzf/zulip,eeshangarg/zulip,SmartPeople/zulip,j831/zulip,amanharitsh123/zulip,zulip/zulip,hackerkid/zulip,jrowan/zulip,dhcrzf/zulip,hackerkid/zulip,zulip/zulip,andersk/zulip,eeshangarg/zulip,mahim97/zulip,amyliu345/zulip,vaidap/zulip,kou/zulip,Diptanshu8/zulip,ryanbackman/zulip,synicalsyntax/zulip,ryanbackman/zulip,synicalsyntax/zulip,timabbott/zulip,timabbott/zulip,showell/zulip,jrowan/zulip,vaidap/zulip,JPJPJPOPOP/zulip,sharmaeklavya2/zulip,eeshangarg/zulip,andersk/zulip,ryanbackman/zulip,rht/zulip,SmartPeople/zulip,kou/zulip,jphilipsen05/zulip,zulip/zulip,tommyip/zulip,jrowan/zulip,brainwane/zulip,kou/zulip,verma-varsha/zulip,eeshangarg/zulip,Diptanshu8/zulip,kou/zulip,j831/zulip,samatdav/zulip,sonali0901/zulip,blaze225/zulip,sharmaeklavya2/zulip,punchagan/zulip,dawran6/zulip,andersk/zulip,souravbadami/zulip,Galexrt/zulip,Galexrt/zulip,timabbott/zulip,rishig/zulip,ryanbackman/zulip,synicalsyntax/zulip,hackerkid/zulip,susansls/zulip,amanharitsh123/zulip,Diptanshu8/zulip,rht/zulip,mahim97/zulip,JPJPJPOPOP/zulip,mahim97/zulip,Galexrt/zulip,sonali0901/zulip,rht/zulip,shubhamdhama/zulip,PhilSk/zulip,JPJPJPOPOP/zulip,souravbadami/zulip,souravbadami/zulip,vabs22/zulip,jphilipsen05/zulip,aakash-cr7/zulip,tommyip/zulip,kou/zulip,isht3/zulip,punchagan/zulip,SmartPeople/zulip,andersk/zulip,JPJPJPOPOP/zulip,jainayush975/zulip,Diptanshu8/zulip,susansls/zulip,jainayush975/zulip,amyliu345/zulip,amyliu345/zulip,SmartPeople/zulip,vaidap/zulip,shubhamdhama/zulip,hackerkid/zulip,aakash-cr7/zulip,rishig/zulip,zulip/zulip,tommyip/zulip,isht3/zulip,jackrzhang/zulip,showell/zulip,shubhamdhama/zulip,dhcrzf/zulip,jainayush975/zulip,brockwhittaker/zulip,sharmaeklavya2/zulip,rht/zulip,kou/zulip,samatdav/zulip,punchagan/zulip,sonali0901/zulip,hackerkid/zulip,vabs22/zulip,christi3k/zulip,kou/zulip,timabbott/zulip,Galexrt/zulip,brainwane/zulip,eeshangarg/zulip,jackrzhang/zulip,aakash-cr7/zulip,vabs22/zulip,hackerkid/zulip,verma-varsha/zulip,brockwhittaker/zulip,dattatreya303/zulip,rishig/zulip,sonali0901/zulip,PhilSk/zulip,dhcrzf/zulip,shubhamdhama/zulip,zulip/zulip,j831/zulip,shubhamdhama/zulip,SmartPeople/zulip,dattatreya303/zulip,blaze225/zulip,showell/zulip,SmartPeople/zulip,eeshangarg/zulip,brainwane/zulip,Diptanshu8/zulip,tommyip/zulip,amanharitsh123/zulip,punchagan/zulip,rishig/zulip,jainayush975/zulip,blaze225/zulip,susansls/zulip,dhcrzf/zulip,vabs22/zulip,christi3k/zulip,PhilSk/zulip,amyliu345/zulip,brockwhittaker/zulip,eeshangarg/zulip,mahim97/zulip,vabs22/zulip,punchagan/zulip,sharmaeklavya2/zulip,brainwane/zulip,sonali0901/zulip,timabbott/zulip,zulip/zulip,verma-varsha/zulip,verma-varsha/zulip,jrowan/zulip,verma-varsha/zulip,jackrzhang/zulip,brockwhittaker/zulip,verma-varsha/zulip,amyliu345/zulip,brainwane/zulip,amanharitsh123/zulip,samatdav/zulip,jrowan/zulip,shubhamdhama/zulip,Galexrt/zulip,rht/zulip,aakash-cr7/zulip,jphilipsen05/zulip,brainwane/zulip,jrowan/zulip,PhilSk/zulip,showell/zulip,showell/zulip,blaze225/zulip,sonali0901/zulip,Galexrt/zulip,andersk/zulip,vaidap/zulip,j831/zulip,aakash-cr7/zulip,dattatreya303/zulip,jackrzhang/zulip,christi3k/zulip,dattatreya303/zulip,souravbadami/zulip,samatdav/zulip,tommyip/zulip,isht3/zulip,andersk/zulip,Diptanshu8/zulip,amanharitsh123/zulip,vaidap/zulip,rishig/zulip,showell/zulip,aakash-cr7/zulip,christi3k/zulip,tommyip/zulip,zulip/zulip,shubhamdhama/zulip,susansls/zulip,PhilSk/zulip,PhilSk/zulip,ryanbackman/zulip,susansls/zulip,synicalsyntax/zulip,souravbadami/zulip,dawran6/zulip,souravbadami/zulip,dattatreya303/zulip,christi3k/zulip,jainayush975/zulip,JPJPJPOPOP/zulip,sharmaeklavya2/zulip,tommyip/zulip,rishig/zulip,isht3/zulip,blaze225/zulip,rht/zulip,jackrzhang/zulip,jphilipsen05/zulip,dawran6/zulip,blaze225/zulip,timabbott/zulip,synicalsyntax/zulip,jphilipsen05/zulip,sharmaeklavya2/zulip,rht/zulip,jphilipsen05/zulip,timabbott/zulip,susansls/zulip,vaidap/zulip,samatdav/zulip,isht3/zulip,brainwane/zulip,jainayush975/zulip,j831/zulip,christi3k/zulip,dawran6/zulip,amanharitsh123/zulip,Galexrt/zulip,mahim97/zulip,dawran6/zulip,dhcrzf/zulip,jackrzhang/zulip,andersk/zulip,jackrzhang/zulip,dawran6/zulip,rishig/zulip,JPJPJPOPOP/zulip,synicalsyntax/zulip,ryanbackman/zulip,hackerkid/zulip,dhcrzf/zulip,vabs22/zulip,punchagan/zulip,dattatreya303/zulip