Comment 7 for bug 1577926

@janl
in my case, apt was unable to use the _apt user due to misconfiguration. it did report (some) failure, which to ignore would be my choice and responsibility then - there is no way of making apt resolve the _apt user issue in a way that would lead to consistently increasing system security.

hence this is not a security bug, but rather just a request for increasing verbosity in error messages - in order to ease debugging OTHER bugs.

please verify that you did indeed have the same issue with the following steps:
1. run apt, preserving the /tmp/apt.(data|sig).+ downloads (e.g. by *temporarily* chattr+a-ing your /tmp directory)
2. run the apt-key command on the exact same files from a root command line and compare output
3. run the apt-key command on the exact same files from a _apt command line and compare output