blackbox should not run as root
blackbox should not run as root

[#82340478]

cjcjameson/concourse,zachgersh/concourse,Amit-PivotalLabs/concourse,concourse/concourse,jbayer/concourse,sedouard/concourse,beni55/concourse,zachgersh/concourse,concourse/concourse,Amit-PivotalLabs/concourse,concourse/concourse,cjcjameson/concourse,longnguyen11288/concourse,cjcjameson/concourse,beni55/concourse,holgero/concourse,CloudCredo/concourse,jbayer/concourse,jbayer/concourse,concourse/concourse,holgero/concourse,zachgersh/concourse,concourse/concourse,beni55/concourse,sedouard/concourse,squeedee/concourse,squeedee/concourse,longnguyen11288/concourse,CloudCredo/concourse,Amit-PivotalLabs/concourse,longnguyen11288/concourse,holgero/concourse,squeedee/concourse,CloudCredo/concourse,sedouard/concourse