/usr/share/perl5/MooseX/ is in libmoosex-storage-perl 0.52-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/MooseX/Storage/
/usr/share/perl5/MooseX/Storage.pm
/usr/share/perl5/MooseX/Storage/Base/
/usr/share/perl5/MooseX/Storage/Base/WithChecksum.pm
/usr/share/perl5/MooseX/Storage/Basic.pm
/usr/share/perl5/MooseX/Storage/Deferred.pm
/usr/share/perl5/MooseX/Storage/Engine/
/usr/share/perl5/MooseX/Storage/Engine.pm
/usr/share/perl5/MooseX/Storage/Engine/IO/
/usr/share/perl5/MooseX/Storage/Engine/IO/AtomicFile.pm
/usr/share/perl5/MooseX/Storage/Engine/IO/File.pm
/usr/share/perl5/MooseX/Storage/Engine/Trait/
/usr/share/perl5/MooseX/Storage/Engine/Trait/DisableCycleDetection.pm
/usr/share/perl5/MooseX/Storage/Engine/Trait/OnlyWhenBuilt.pm
/usr/share/perl5/MooseX/Storage/Format/
/usr/share/perl5/MooseX/Storage/Format/JSON.pm
/usr/share/perl5/MooseX/Storage/Format/Storable.pm
/usr/share/perl5/MooseX/Storage/Format/YAML.pm
/usr/share/perl5/MooseX/Storage/IO/
/usr/share/perl5/MooseX/Storage/IO/AtomicFile.pm
/usr/share/perl5/MooseX/Storage/IO/File.pm
/usr/share/perl5/MooseX/Storage/IO/StorableFile.pm
/usr/share/perl5/MooseX/Storage/Meta/
/usr/share/perl5/MooseX/Storage/Meta/Attribute/
/usr/share/perl5/MooseX/Storage/Meta/Attribute/DoNotSerialize.pm
/usr/share/perl5/MooseX/Storage/Meta/Attribute/Trait/
/usr/share/perl5/MooseX/Storage/Meta/Attribute/Trait/DoNotSerialize.pm
/usr/share/perl5/MooseX/Storage/Traits/
/usr/share/perl5/MooseX/Storage/Traits/DisableCycleDetection.pm
/usr/share/perl5/MooseX/Storage/Traits/OnlyWhenBuilt.pm
/usr/share/perl5/MooseX/Storage/Util.pm