fixed files in virtual machine

1 job for master in 2 seconds (queued for 23 seconds)
Status Job ID Name Coverage
  Build
failed #150614
linidiap
linux

00:00:02

 
Name Stage Failure
failed
linux Build
$ rm -rf graphics
$ git clone git@gitlab.idiap.ch:master-biometrics/graphics.git
Cloning into 'graphics'...
Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
ERROR: Job failed: exit status 1