rails s -b 0.0.0.0のサーバー立ち上げがうまくいかない

以下の通りのメッセージが出力され、サーバー立ち上げがうまくいきません。解決方法につきまして、ご教示いただきたく存じます。

ターミナル上のメッセージ

vagrant@vagrant-ubuntu-trusty:/vagrant/blog_sample$ rails s -b 0.0.0.0
=> Booting WEBrick
=> Rails 4.2.4 application starting in development on http://0.0.0.0:3000
=> Run rails server -h for more startup options
=> Ctrl-C to shutdown server
[2016-07-24 12:46:15] INFO WEBrick 1.3.1
[2016-07-24 12:46:15] INFO ruby 2.2.3 (2015-08-18) [x86_64-linux]
Exiting
/home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/socket.rb:206:in bind': Address already in use - bind(2) for 0.0.0.0:3000 (Errno::EADDRINUSE) from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/socket.rb:206:in listen'
from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/socket.rb:461:in block in tcp_server_sockets' from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/socket.rb:232:in each'
from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/socket.rb:232:in foreach' from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/socket.rb:459:in tcp_server_sockets'
from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/webrick/utils.rb:70:in create_listeners' from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/webrick/server.rb:133:in listen'
from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/webrick/server.rb:114:in initialize' from /home/vagrant/.rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/webrick/httpserver.rb:45:in initialize'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/rack-1.6.4/lib/rack/handler/webrick.rb:31:in new' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/rack-1.6.4/lib/rack/handler/webrick.rb:31:in run'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/rack-1.6.4/lib/rack/server.rb:286:in start' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/server.rb:80:in start'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:80:in block in server' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in tap'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in server' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in run_command!'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/railties-4.2.4/lib/rails/commands.rb:17:in <top (required)>' from /vagrant/blog_sample/bin/rails:9:in require'
from /vagrant/blog_sample/bin/rails:9:in <top (required)>' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in load'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in call' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/lib/spring/client/command.rb:7:in call'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/lib/spring/client.rb:30:in run' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/bin/spring:49:in <top (required)>'
from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/lib/spring/binstub.rb:11:in load' from /home/vagrant/.rvm/gems/ruby-2.2.3/gems/spring-1.7.2/lib/spring/binstub.rb:11:in <top (required)>'
from /vagrant/blog_sample/bin/spring:13:in require' from /vagrant/blog_sample/bin/spring:13:in <top (required)>'
from bin/rails:3:in load' from bin/rails:3:in <main>'
vagrant@vagrant-ubuntu-trusty:/vagrant/blog_sample$