minor bug fixes

3 jobs for oneclick_nn_training in 3 minutes and 15 seconds (queued for 1 second)
Status Job ID Name Coverage
  Linux
passed #278463
BranchJobLinux

00:02:55

passed #278462
integrationCaffe2JobLinux

00:03:15

passed #278461
integrationMXNetJobLinux

00:03:04