title: Rails 5 Bug (Segmentation fault)
body: <p>Getting an error in the terminal running any rails command, for example 'rails test', after I modify a file in my project such as the model file 'users.rb' or the controller file 'users_controller.rb'. The bug is 'fixed' if I run 'spring stop' to restart the spring server. But it comes up every time I modify a file. Here is the initial message of the error/bug:</p>
  
  <pre><code>[sample_app (modeling-users)]$ time rails test
  Running via Spring preloader in process 43345
  /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:27: [BUG] Segmentation fault at 0x00000000000110
  ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]
  </code></pre>
  
  <p>The error goes on for thousands of lines. Here is a small piece of the beginning of it:</p>
  
  <pre><code>-- Control frame information -----------------------------------------------
  c:0072 p:---- s:0285 e:000284 CFUNC  :initialize
  c:0071 p:---- s:0283 e:000282 CFUNC  :new
  c:0070 p:0183 s:0278 e:000277 METHOD /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/sqlite3_adapter
  c:0069 p:0028 s:0271 e:000270 METHOD /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connec
  c:0068 p:0027 s:0268 e:000267 METHOD /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connec
  </code></pre>
  
  <p>And here is the last few lines:</p>
  
  <pre><code>1696 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/activesupport-5.0.0.1/lib/active_support/testing/stream.rb
   1697 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/railties-5.0.0.1/lib/rails/generators/testing/behaviour.rb
   1698 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/railties-5.0.0.1/lib/rails/generators/testing/setup_and_teardown.rb
   1699 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/railties-5.0.0.1/lib/rails/generators/testing/assertions.rb
   1700 /Users/AlfonsoGiron/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/io/console.bundle
   1701 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/thor-0.19.1/lib/thor/shell/basic.rb
   1702 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/railties-5.0.0.1/lib/rails/generators/test_case.rb
   1703 /Users/AlfonsoGiron/.rvm/gems/ruby-2.3.1@global/gems/activesupport-5.0.0.1/lib/active_support/testing/autorun.rb
  [NOTE]
  You may have encountered a bug in the Ruby interpreter or extension libraries.
  Bug reports are welcome.
  For details: http://www.ruby-lang.org/bugreport.html
  </code></pre>
  
  <p>Basically every line is referring to '.rvm/gems/'  etc. Clearly it's a rvm/gems issue? I've run 'bundle update' and reinstalled my gems to no avail. If anything, suggestions on the cleanest way to uninstall/reinstall Ruby/Rails? Thinking that may be a solution but would want to do it properly. Thanks.</p>