*  INFO: Running install_ubuntu_stable()
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
  dctrl-tools debconf-utils libpgm-5.1-0 libzmq3 python-crypto python-dateutil
  python-m2crypto python-mako python-msgpack python-zmq salt-common
Suggested packages:
  debtags python-crypto-dbg python-crypto-doc python-beaker python-mako-doc
  salt-doc python-augeas
The following NEW packages will be installed:
  dctrl-tools debconf-utils libpgm-5.1-0 libzmq3 python-crypto python-dateutil
  python-m2crypto python-mako python-msgpack python-zmq salt-common
  salt-minion
0 upgraded, 12 newly installed, 0 to remove and 0 not upgraded.
Need to get 3,541 kB of archives.
After this operation, 16.1 MB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  libpgm-5.1-0 libzmq3 python-m2crypto dctrl-tools debconf-utils python-crypto
  python-dateutil python-mako python-msgpack python-zmq
E: There are problems and -y was used without --force-yes
 * ERROR: Failed to run install_ubuntu_stable()!!!