Remove the POD errors. You can check for POD errors automatically by including Test::Pod to your test suite.
Error: MooX-VariantAttribute-0.04/lib/MooX/VariantAttribute.pm -- Around line 51: Non-ASCII character seen before =encoding in 'Ñï¼ï¾Ðï¾Ñï¼Attribute...'. Assuming UTF-8
This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.