From aptlog.txt:
Broken systemd:amd64 Breaks on rdnssd [ amd64 ] < 1.0.1-1ubuntu2 -> 1.0.1-6ubuntu1 > ( universe/net ) (< 1.0.1-5) Considering rdnssd:amd64 0 as a solution to systemd:amd64 40 Upgrading rdnssd:amd64 due to Breaks field in systemd:amd64 Investigating (9) rdnssd [ amd64 ] < 1.0.1-1ubuntu2 -> 1.0.1-6ubuntu1 > ( universe/net ) Broken rdnssd:amd64 Conflicts on network-manager [ amd64 ] < 1.2.2-0ubuntu0.16.04.3 -> 1.2.4-0ubuntu1 > ( net ) Considering network-manager:amd64 5 as a solution to rdnssd:amd64 0 MarkKeep rdnssd [ amd64 ] < 1.0.1-1ubuntu2 -> 1.0.1-6ubuntu1 > ( universe/net ) FU=0 Holding Back rdnssd:amd64 rather than change network-manager:amd64 Done Log time: 2016-11-12 20:11:39.586445
From aptlog.txt:
Broken systemd:amd64 Breaks on rdnssd [ amd64 ] < 1.0.1-1ubuntu2 -> 1.0.1-6ubuntu1 > ( universe/net ) (< 1.0.1-5) 16.04.3 -> 1.2.4-0ubuntu1 > ( net ) manager: amd64 5 as a solution to rdnssd:amd64 0 manager: amd64
Considering rdnssd:amd64 0 as a solution to systemd:amd64 40
Upgrading rdnssd:amd64 due to Breaks field in systemd:amd64
Investigating (9) rdnssd [ amd64 ] < 1.0.1-1ubuntu2 -> 1.0.1-6ubuntu1 > ( universe/net )
Broken rdnssd:amd64 Conflicts on network-manager [ amd64 ] < 1.2.2-0ubuntu0.
Considering network-
MarkKeep rdnssd [ amd64 ] < 1.0.1-1ubuntu2 -> 1.0.1-6ubuntu1 > ( universe/net ) FU=0
Holding Back rdnssd:amd64 rather than change network-
Done
Log time: 2016-11-12 20:11:39.586445