Error on fetching several lists

[Removed by request]

I'm using Ubuntu 16.04 dev with apt 1.1.4 and on executing "apt-get update" I'm seeing several times errors like "Err:10 http://archive.ubuntu.com/ubuntu xenial-updates InRelease Couldn't create tempfiles for splitting up /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_xenial-updates_InRelease
  Could not execute 'apt-key' to verify signature (is gnupg installed?)" which results that these lists are not available. Downgrading to apt 1.0.10.2ubuntu1 from Ubuntu 15.10 solves this issue.

[Removed by request (removed3425744)]

At the debian bugtracker is also a bugreport about this: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=807948
It turned out that the user had manually set up /tmp which caused it to have the wrong permissions. I have not manually set up /tmp but on looking at it it has the permissions 0755 for root:root. Setting the permissions to 0777 does solve this issue. Since this installation is a bit old maybe it was just a migration issue. Maybe on installing apt a script should check if the permissions of /tmp are correct?

[Julian Andres Klode (juliank)]

Closing. It is not APT's job to make sure unrelated basic system configuration is correct.

[Removed by request (removed3425744)]

Any idea to which package this issue belongs to? Normally I would have put it now to "Ubuntu" without assigning a package but it seems this is here not possible anymore.