/usr/lib/x86_64-linux-gnu/libh2o-evloop.so is in libh2o-evloop-dev 2.2.4+dfsg-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libh2o-evloop.so.0.13
/usr/lib/x86_64-linux-gnu/libh2o-evloop.so.0.13