INFO [050fe961] Running mkdir -p /home/rails/rails-
capistrano/releases/20140114234157 on staging-rails
DEBUG [050fe961] Command: cd /home/rails/rails-capistrano/re
Whenever I have hit this error it was because the branch specified in my deploy/environment.rb file wasn't checked into git. Do an add / commit / git push origin branch_name and that will likely make things work.