Preparing to unpack .../libc6_2.23-0ubuntu9_i386.deb ...
De-configuring libc6:amd64 (2.23-0ubuntu7) ...

LD_LIBRARY_PATH contains the traditional /lib directory,
but not the multiarch directory /lib/i386-linux-gnu.
It is not safe to upgrade the C library in this situation;
please remove the /lib/directory from LD_LIBRARY_PATH and
try again.

dpkg: error processing archive /var/cache/apt/archives/libc6_2.23-0ubuntu9_i386.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
Preparing to unpack .../libc6_2.23-0ubuntu9_amd64.deb ...
De-configuring libc6:i386 (2.23-0ubuntu7) ...

LD_LIBRARY_PATH contains the traditional /lib directory,
but not the multiarch directory /lib/x86_64-linux-gnu.
It is not safe to upgrade the C library in this situation;
please remove the /lib/directory from LD_LIBRARY_PATH and
try again.

dpkg: error processing archive /var/cache/apt/archives/libc6_2.23-0ubuntu9_amd64.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
Processing triggers for libc-bin (2.23-0ubuntu7) ...
Errors were encountered while processing:
 /var/cache/apt/archives/libc6_2.23-0ubuntu9_i386.deb
 /var/cache/apt/archives/libc6_2.23-0ubuntu9_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)