Preparing to unpack .../python3-newt_0.52.20-1ubuntu1_amd64.deb ...
Unpacking python3-newt:amd64 (0.52.20-1ubuntu1) ...
Selecting previously unselected package tmux.
Preparing to unpack .../archives/tmux_2.6-3_amd64.deb ...
Unpacking tmux (2.6-3) ...
dpkg: error processing archive /var/cache/apt/archives/tmux_2.6-3_amd64.deb (--unpack):
 unable to sync new file '/var/lib/dpkg/info/tmux.list-new': Input/output error