/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/ is in libhtree-ruby1.9.1 0.7-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container.src/M000010.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Loc.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Loc.src/
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Loc.src/M000011.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Loc.src/M000012.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000013.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000014.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000015.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000016.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000017.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000018.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000019.html
/usr/share/doc/libhtree-ruby1.9.1/html/classes/HTree/Container/Trav.src/M000020.html