Wyświetlenie pomocy powoduje próbę podłączenia z RabbitMQ

[marcmos]

$ bin/rails -h
The most common rails commands are:
 generate    Generate new code (short-cut alias: "g")
 console     Start the Rails console (short-cut alias: "c")
 server      Start the Rails server (short-cut alias: "s")
 test        Run tests (short-cut alias: "t")
 dbconsole   Start a console for the database specified in config/database.yml
             (short-cut alias: "db")

 new         Create a new Rails application. "rails new my_app" creates a
             new application called MyApp in "./my_app"


All commands can be run with -h (or --help) for more information.
In addition to those commands, there are:

W, [2017-09-10T21:45:46.515567 #23250]  WARN -- #<Bunny::Session:0x3fe02d8 guest@localhost:5672, vhost=/, addresses=[localhost:5672]>: Could not establish TCP connection to localhost:5672: Connection refused - connect(2) for 127.0.0.1:5672
/home/mmos/.gem/ruby/2.4.0/gems/bunny-2.7.0/lib/bunny/session.rb:327:in `rescue in start': Could not establish TCP connection to any of the configured hosts (Bunny::TCPConnectionFailedForAllHosts)
	from /home/mmos/.gem/ruby/2.4.0/gems/bunny-2.7.0/lib/bunny/session.rb:295:in `start'
	from /home/mmos/src/zmora-agh/zmora-server-rails/lib/rabbitmq.rb:6:in `initialize'
	from /home/mmos/src/zmora-agh/zmora-server-rails/lib/judge.rb:15:in `new'
	from /home/mmos/src/zmora-agh/zmora-server-rails/lib/judge.rb:15:in `start_receive_results'
	from /home/mmos/src/zmora-agh/zmora-server-rails/config/initializers/rabbitmq.rb:2:in `<top (required)>'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:286:in `load'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:286:in `block in load'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:258:in `load_dependency'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:286:in `load'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:655:in `block in load_config_initializer'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/notifications.rb:168:in `instrument'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:654:in `load_config_initializer'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:611:in `each'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:611:in `block in <class:Engine>'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:30:in `instance_exec'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:30:in `run'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:59:in `block in run_initializers'
	from /usr/lib64/ruby/2.4.0/tsort.rb:228:in `block in tsort_each'
	from /usr/lib64/ruby/2.4.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
	from /usr/lib64/ruby/2.4.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
	from /usr/lib64/ruby/2.4.0/tsort.rb:431:in `each_strongly_connected_component_from'
	from /usr/lib64/ruby/2.4.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:48:in `each'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:48:in `tsort_each_child'
	from /usr/lib64/ruby/2.4.0/tsort.rb:415:in `call'
	from /usr/lib64/ruby/2.4.0/tsort.rb:415:in `each_strongly_connected_component_from'
	from /usr/lib64/ruby/2.4.0/tsort.rb:349:in `block in each_strongly_connected_component'
	from /usr/lib64/ruby/2.4.0/tsort.rb:347:in `each'
	from /usr/lib64/ruby/2.4.0/tsort.rb:347:in `call'
	from /usr/lib64/ruby/2.4.0/tsort.rb:347:in `each_strongly_connected_component'
	from /usr/lib64/ruby/2.4.0/tsort.rb:226:in `tsort_each'
	from /usr/lib64/ruby/2.4.0/tsort.rb:205:in `tsort_each'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:58:in `run_initializers'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/application.rb:353:in `initialize!'
	from /home/mmos/src/zmora-agh/zmora-server-rails/config/environment.rb:5:in `<top (required)>'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:292:in `require'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:292:in `block in require'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:258:in `load_dependency'
	from /home/mmos/.gem/ruby/2.4.0/gems/activesupport-5.1.1/lib/active_support/dependencies.rb:292:in `require'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/application.rb:329:in `require_environment!'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command/actions.rb:16:in `require_application_and_environment!'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/commands/rake/rake_command.rb:31:in `rake_tasks'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/commands/rake/rake_command.rb:40:in `formatted_rake_tasks'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/commands/rake/rake_command.rb:10:in `printing_commands'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:91:in `each'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:91:in `flat_map'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:91:in `block in sorted_groups'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:91:in `transform_values!'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:91:in `sorted_groups'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:84:in `print_commands'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/commands/help/help_command.rb:9:in `help'
	from /home/mmos/.gem/ruby/2.4.0/gems/thor-0.19.4/lib/thor/command.rb:27:in `run'
	from /home/mmos/.gem/ruby/2.4.0/gems/thor-0.19.4/lib/thor/invocation.rb:126:in `invoke_command'
	from /home/mmos/.gem/ruby/2.4.0/gems/thor-0.19.4/lib/thor.rb:369:in `dispatch'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command/base.rb:63:in `perform'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/command.rb:44:in `invoke'
	from /home/mmos/.gem/ruby/2.4.0/gems/railties-5.1.1/lib/rails/commands.rb:16:in `<top (required)>'
	from bin/rails:4:in `require'
	from bin/rails:4:in `<main>'