/usr/lib/x86_64-linux-gnu/libvibe-http.so is in libvibe-http-dev 0.8.2-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libvibe-http.so.0
/usr/lib/x86_64-linux-gnu/libvibe-http.so.0