Comment 8 for bug 1614576

Here's the full Traceback:

Preparing to unpack .../policykit-1_0.105-16_amd64.deb ...
Created symlink /run/systemd/system/polkitd.service Traceback (most recent call last):
  File "./yakkety", line 8, in <module>
    sys.exit(main())
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeMain.py", line 242, in main
    if app.run():
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeController.py", line 1880, in run
    return self.fullUpgrade()
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeController.py", line 1845, in fullUpgrade
    if not self.doDistUpgrade():
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeController.py", line 1183, in doDistUpgrade
    res = self.cache.commit(fprogress,iprogress)
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeCache.py", line 267, in commit
    apt.Cache.commit(self, fprogress, iprogress)
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 515, in commit
    res = self.install_archives(pm, install_progress)
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 479, in install_archives
    res = install_progress.run(pm)
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeView.py", line 234, in run
    res = os.WEXITSTATUS(self.wait_child())
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeView.py", line 200, in wait_child
    self.update_interface()
  File "/tmp/ubuntu-release-upgrader-uavelnl5/DistUpgrade/DistUpgradeViewNonInteractive.py", line 229, in update_interface
    sys.stdout.write("%s" % s.decode(locale.getpreferredencoding()))
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe2 in position 0: unexpected end of data