/usr/share/qcumber/lib/bootstrap.min.css is in qcumber 1.0.14+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/qcumber/lib/../../javascript/bootstrap/css/bootstrap.min.css
/usr/share/qcumber/lib/../../javascript/bootstrap/css/bootstrap.min.css