changes to installation script for mxnet

7 jobs for develop in 6 minutes and 18 seconds (queued for 1 second)
Status Name Job ID Coverage
  Linux
passed integrationCaffe2JobLinux #994190

00:02:46

passed integrationGluonJobLinux #994299

00:02:36

passed integrationMXNetJobLinux #994189

00:02:46

passed integrationPythonWrapperTest #994193

00:03:41

passed integrationTensorflowJobLinux #994192

00:02:45

passed UnitTestJobLinux #994194

00:02:54

failed integrationGluonJobLinux #994191

00:00:05