Dockerfile: Fix permissions in venv to allow installing packages in derived images. Fixes #2015
Dockerfile: Fix permissions in venv to allow installing packages in derived images. Fixes #2015

locustio/locust,mbeacom/locust,mbeacom/locust,locustio/locust,locustio/locust,mbeacom/locust,locustio/locust,mbeacom/locust