/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/ is in liblucy-perl 0.3.3-7+b1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Index/
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Index/ByteBufDocReader.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Index/ByteBufDocWriter.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Index/LongFieldSim.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Index/ZlibDocReader.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Index/ZlibDocWriter.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Remote/
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Remote/ClusterSearcher.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Remote/SearchClient.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Remote/SearchServer.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Search/
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Search/Filter.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Search/MockMatcher.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Search/ProximityQuery.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/LucyX/Search/ProximityQuery.pod