# File lib/net/ssh/authentication/agent.rb, line 71
71:     def connect!
72:       begin
73:         debug { "connecting to ssh-agent" }
74:         @socket = agent_socket_factory.open(ENV['SSH_AUTH_SOCK'])
75:       rescue
76:         error { "could not connect to ssh-agent" }
77:         raise AgentNotAvailable, $!.message
78:       end
79:     end