1. 問題 docker-compose upし時にA server is already running. Check /product-register/tmp/pids/server.pid. Exiting エラーが出て、立ち上がらなかった。 /usr/local/lib/ruby/2.7.0/net/protocol.rb:66: warning: already initialized constant Net::ProtocRetryError /usr/local/bundle/gems/net-protocol-0.2.1/lib/net/protocol.rb:68: warning: previous definition of ProtocRetryError was here /usr/local/lib/ruby/2.7.0/net/protocol.rb:20