Received !register from dida
undefined method `[]=' for nil:NilClass
irc2.rb:88:in `register'
irc2.rb:209:in `handle_server_input'
irc2.rb:244:in `block in main_loop'
irc2.rb:236:in `each'
irc2.rb:236:in `main_loop'
irc2.rb:257:in `<main>'[ Server ping ]