CI provisioning fails when deploying boot2docker image into VirtualBox on macOS.
++ docker-machine create -d virtualbox qt-test-server
Creating CA: /Users/qt/.docker/machine/certs/ca.pem
Creating client certificate: /Users/qt/.docker/machine/certs/cert.pem
Running pre-create checks...
Error with pre-create check: "This computer doesn't have VT-X/AMD-v enabled. Enabling it in the BIOS is mandatory"