我写了rails s并得到了这个：
jonsdirewolf@DESKTOP-GNM7V6T:/mnt/c/Users/direwolf/Documents/web/rails_projects/myapp$ rails s
/home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-4.2.7.1/lib/rails/app_rails_loader.rb:39: warning: Insecure world writable dir /home/jonsdirewolf/.rbenv/versions in PATH, mode 040777
=> Booting WEBrick
=> Rails 4.2.7.1 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
/home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:121: warning: constant ::Fixnum is deprecated
/home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:121: warning: constant ::Bignum is deprecated
Exiting
/home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:124:in `block (2 levels) in <class:Numeric>': stack level too deep (SystemStackError)
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in `block (2 levels) in <class:Numeric>'
... 5012 levels...
from /home/jonsdirewolf/.rbenv/versions/2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /mnt/c/Users/direwolf/Documents/web/rails_projects/myapp/bin/spring:15:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
jonsdirewolf@DESKTOP-GNM7V6T:/mnt/c/Users/direwolf/Documents/web/rails_projects/myapp$
我该怎么办？