/usr/lib/ruby/vendor_ruby/ is in ruby-rbvmomi 1.8.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/rbvmomi.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/
/usr/lib/ruby/vendor_ruby/rbvmomi/sms/
/usr/lib/ruby/vendor_ruby/rbvmomi/sms/SmsStorageManager.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/deserialization.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/sms.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/connection.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/trollop.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/pbm.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/basic_types.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/utils/
/usr/lib/ruby/vendor_ruby/rbvmomi/utils/admission_control.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/utils/leases.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/utils/perfdump.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/utils/deploy.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/type_loader.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/fault.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/Folder.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ServiceInstance.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ReflectManagedMethodExecuter.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/DynamicTypeMgrManagedTypeInfo.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ObjectUpdate.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/Datastore.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ObjectContent.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/PropertyCollector.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/DynamicTypeMgrDataTypeInfo.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ResourcePool.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ManagedObject.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/PerfCounterInfo.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/HostSystem.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ComputeResource.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/Task.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/VirtualMachine.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/DynamicTypeMgrAllTypeInfo.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/ManagedEntity.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/OvfManager.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/PerformanceManager.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/vim/Datacenter.rb
/usr/lib/ruby/vendor_ruby/rbvmomi/trivial_soap.rb