/usr/share/doc/qtdeclarative5-usermetrics0.1/changelog.Debian.gz is in qtdeclarative5-usermetrics0.1 1.1.1+15.10.20150915-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/qtdeclarative5-usermetrics0.1/../usermetricsservice/changelog.Debian.gz