Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
/usr/share/gems/gems/sprockets-4.2.0/lib/sprockets/uri_utils.rb:66: warning: URI::RFC3986_PARSER.escape is obsolete. Use URI::RFC2396_PARSER.escape explicitly.
This is just warning caused by change in Ruby 3.4: https://bugs.ruby-lang.org/issues/19266