=========== bionic OK (1.6.1 -> 1.6.2) =====================

+ lxc launch -e ubuntu:bionic lp1778547-bionic
Creating lp1778547-bionic
Starting lp1778547-bionic
+ sleep 5
+ lxc exec lp1778547-bionic -- sh -c 'apt-cache policy libapt-pkg5.0 | grep Inst ; python3 /home/jak/a.py'
  Installed: 1.6.1
[('0', '/dev/pts/5'), ('1', '/dev/pts/5'), ('2', '/dev/pts/5'), ('3', 'pipe:[749881]'), ('4', '/var/lib/dpkg/lock'), ('5', '/var/lib/dpkg/lock'), ('6', '<deleted>'), ('17', 'socket:[43872]')]                                                                                            
[('0', '/dev/pts/5'), ('1', '/dev/pts/5'), ('2', '/dev/pts/5'), ('3', 'pipe:[749881]'), ('4', '/var/lib/dpkg/lock'), ('5', '<deleted>'), ('17', 'socket:[43872]')]                                                                                                                         
+ lxc exec lp1778547-bionic -- sh -c 'echo deb http://archive.ubuntu.com/ubuntu bionic-proposed main >> /etc/apt/sources.list && apt-get update && apt-get -qy install libapt-pkg5.0'                                                                                                      
dpkg-preconfigure: unable to re-open stdin: No such file or directory
+ lxc exec lp1778547-bionic -- sh -c 'apt-cache policy libapt-pkg5.0 | grep Inst ; python3 /home/jak/a.py'
  Installed: 1.6.2
[('0', '/dev/pts/4'), ('1', '/dev/pts/4'), ('2', '/dev/pts/4'), ('3', 'pipe:[779703]'), ('4', '/var/lib/dpkg/lock'), ('5', '<deleted>'), ('17', 'socket:[43872]')]
[('0', '/dev/pts/4'), ('1', '/dev/pts/4'), ('2', '/dev/pts/4'), ('3', 'pipe:[779703]'), ('4', '<deleted>'), ('17', 'socket:[43872]')]
+ lxc stop lp1778547-bionic

==================== artful OK (1.5.1 -> 1.5.2) ===============================
+ lxc launch -e ubuntu:artful lp1778547-artful
Creating lp1778547-artful
Starting lp1778547-artful
+ sleep 5
+ lxc exec lp1778547-artful -- sh -c 'apt-cache policy libapt-pkg5.0 | grep Inst ; python3 /home/jak/a.py'
  Installed: 1.5.1
[('0', '/dev/pts/4'), ('1', '/dev/pts/4'), ('2', '/dev/pts/4'), ('3', 'pipe:[818873]'), ('4', '/var/lib/dpkg/lock'), ('5', '/var/lib/dpkg/lock'), ('6', '<deleted>'), ('17', 'socket:[43872]')]                                                                                            
[('0', '/dev/pts/4'), ('1', '/dev/pts/4'), ('2', '/dev/pts/4'), ('3', 'pipe:[818873]'), ('4', '/var/lib/dpkg/lock'), ('5', '<deleted>'), ('17', 'socket:[43872]')]                                                                                                                         
+ lxc exec lp1778547-artful -- sh -c 'echo deb http://archive.ubuntu.com/ubuntu artful-proposed main >> /etc/apt/sources.list && apt-get update && apt-cache policy libapt-pkg5.0 && apt-get -y install libapt-pkg5.0'                                                                     
dpkg-preconfigure: unable to re-open stdin: No such file or directory
+ lxc exec lp1778547-artful -- sh -c 'apt-cache policy libapt-pkg5.0 | grep Inst ; python3 /home/jak/a.py'
  Installed: 1.5.2
[('0', '/dev/pts/4'), ('1', '/dev/pts/4'), ('2', '/dev/pts/4'), ('3', 'pipe:[826053]'), ('4', '/var/lib/dpkg/lock'), ('5', '<deleted>'), ('17', 'socket:[43872]')]                                                                                                                         
[('0', '/dev/pts/4'), ('1', '/dev/pts/4'), ('2', '/dev/pts/4'), ('3', 'pipe:[826053]'), ('4', '<deleted>'), ('17', 'socket:[43872]')]


====== xenial OK (1.2.26->1.2.27) =====================

+ lxc launch -e ubuntu:xenial lp1778547-xenial
Creating lp1778547-xenial
Starting lp1778547-xenial
+ sleep 5
+ lxc exec lp1778547-xenial -- sh -c 'apt-cache policy libapt-pkg5.0 | grep Inst ; python3 /home/jak/a.py'
  Installed: 1.2.26
[('0', '/dev/pts/6'), ('1', '/dev/pts/6'), ('2', '/dev/pts/6'), ('3', 'pipe:[764358]'), ('4', '/var/lib/dpkg/lock'), ('5', '/var/lib/dpkg/lock'), ('6', '<deleted>'), ('17', 'socket:[43872]')]
[('0', '/dev/pts/6'), ('1', '/dev/pts/6'), ('2', '/dev/pts/6'), ('3', 'pipe:[764358]'), ('4', '/var/lib/dpkg/lock'), ('5', '<deleted>'), ('17', 'socket:[43872]')]
+ lxc exec lp1778547-xenial -- sh -c 'echo deb http://archive.ubuntu.com/ubuntu xenial-proposed main >> /etc/apt/sources.list && apt-get update && apt-get -qy install libapt-pkg5.0'
dpkg-preconfigure: unable to re-open stdin: No such file or directory
+ lxc exec lp1778547-xenial -- sh -c 'apt-cache policy libapt-pkg5.0 | grep Inst ; python3 /home/jak/a.py'
  Installed: 1.2.27
[('0', '/dev/pts/3'), ('1', '/dev/pts/3'), ('2', '/dev/pts/3'), ('3', 'pipe:[781507]'), ('4', '/var/lib/dpkg/lock'), ('5', '<deleted>'), ('17', 'socket:[43872]')]
[('0', '/dev/pts/3'), ('1', '/dev/pts/3'), ('2', '/dev/pts/3'), ('3', 'pipe:[781507]'), ('4', '<deleted>'), ('17', 'socket:[43872]')]
+ lxc stop lp1778547-xenial