lib/rubygems/comparator/report.rb in gem-compare-1.1.0 vs lib/rubygems/comparator/report.rb in gem-compare-1.2.0

@@ -102,10 +102,10 @@
           nested.unshift(@header)
         end
       end
 
       def lines(line_num)
-        all_messages[line_num].data
+        all_messages[line_num]&.data
       end
 
       def nested_messages
         nested_messages = []
         @sections.each do |section|