This file is indexed.

/usr/lib/gcc/arm-none-eabi/4.8.2/liblto_plugin.so is in gcc-arm-none-eabi 4.8.2-14ubuntu1+6.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/gcc/arm-none-eabi/4.8.2/liblto_plugin.so.0.0.0