--- nokogiri-1.11.0.rc4/lib/nokogiri/version/info.rb.warn	2020-12-31 16:56:11.533949657 +0900
+++ nokogiri-1.11.0.rc4/lib/nokogiri/version/info.rb	2020-12-31 16:59:38.576697147 +0900
@@ -58,6 +58,7 @@ module Nokogiri
 
     def warnings
       warnings = []
+      return warnings
 
       if libxml2?
         if compiled_libxml_version != loaded_libxml_version