title: Phusion Passenger startup issues
body: <p>I've a application on production server.Everything is working fine before, but I've no idea what went wrong, application is not running and throws following error in nginx's error.log file</p>
  
  <pre><code>[ 2015-11-26 05:34:16.2247 7383/7fbc4d776700 age/Cor/App/Implementation.cpp:304 ]: Could not spawn process for application /home/ec2-user/deploy/app/kickmarket_eu/current: An error occurred while starting up the preloader: it did not write a startup response in time.
    Error ID: 3b4df3aa
    Error details saved to: /tmp/passenger-error-hExUDw.html
    Message from application: An error occurred while starting up the preloader: it did not write a startup response in time. Please read &lt;a href="https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems"&gt;this article&lt;/a&gt; for more information about this problem.&lt;br&gt;
  &lt;h2&gt;Raw process output:&lt;/h2&gt;
  (empty)
  
  [ 2015-11-26 05:34:16.3445 7383/7fbc4e778700 age/Cor/Req/CheckoutSession.cpp:253 ]: [Client 1-1] Cannot checkout session because a spawning error occurred. The identifier of the error is 3b4df3aa. Please see earlier logs for details about the error.
  [ 2015-11-26 05:34:16.3447 7383/7fbc4e778700 age/Cor/Req/CheckoutSession.cpp:253 ]: [Client 1-2] Cannot checkout session because a spawning error occurred. The identifier of the error is 3b4df3aa. Please see earlier logs for details about the error.
  [ 2015-11-26 05:34:16.3448 7383/7fbc4e778700 age/Cor/Req/CheckoutSession.cpp:253 ]: [Client 1-3] Cannot checkout session because a spawning error occurred. The identifier of the error is 3b4df3aa. Please see earlier logs for details about the error.
  [ 2015-11-26 05:34:16.3448 7383/7fbc4e778700 age/Cor/Req/CheckoutSession.cpp:253 ]: [Client 1-4] Cannot checkout session because a spawning error occurred. The identifier of the error is 3b4df3aa. Please see earlier logs for details about the error.
  App 7631 stdout:
  [ 2015-11-26 05:46:47.5415 7383/7fbc4d776700 age/Cor/App/Implementation.cpp:304 ]: Could not spawn process for application /home/ec2-user/deploy/app/kickmarket_eu/current: An error occurred while starting up the preloader: it did not write a startup response in time.
    Error ID: a3b18413
    Error details saved to: /tmp/passenger-error-43MKgQ.html
    Message from application: An error occurred while starting up the preloader: it did not write a startup response in time. Please read &lt;a href="https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems"&gt;this article&lt;/a&gt; for more information about this problem.&lt;br&gt;
  &lt;h2&gt;Raw process output:&lt;/h2&gt;
  (empty
  </code></pre>
  
  <p>I looked into <a href="https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems" rel="nofollow">referred link</a> but didn't get any idea to fix this.
  My nginx server is running properly.
  I'm using <code>passenger-5.0.21</code> and <code>ruby-2.1.2</code>. Any suggestion will be appreciated, Thank you</p>
  
  <h1>Update 1 Added /tmp/passenger-error-hExUDw.html file content</h1>
  
  <pre><code>&lt;body&gt;
  
      &lt;div id="site_container"&gt;
          &lt;div id="site_header"&gt;
              &lt;ul class="corporate_identity"&gt;
                  &lt;li class="logo"&gt;&lt;a href="https://www.phusionpassenger.com"&gt;&lt;span&gt;Phusion Passenger&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
              &lt;/ul&gt;
          &lt;/div&gt;
          &lt;div id="site_body"&gt;
              &lt;h1 class="error_title"&gt;Web application could not be started&lt;/h1&gt;
              &lt;div id="content"&gt;
                  An error occurred while starting up the preloader: it did not write a startup response in time. Please read &lt;a href="https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems"&gt;this article&lt;/a&gt; for more information about this problem.&lt;br&gt;
  &lt;h2&gt;Raw process output:&lt;/h2&gt;
  (empty)
  
                  &lt;dl&gt;
                  &lt;dt&gt;Error ID&lt;/dt&gt;
                  &lt;dd&gt;3b4df3aa&lt;/dd&gt;
                  &lt;dt&gt;Application root&lt;/dt&gt;
                  &lt;dd&gt;/home/ec2-user/deploy/app/kickmarket_eu/current&lt;/dd&gt;
                  &lt;dt&gt;Environment (value of RAILS_ENV, RACK_ENV, WSGI_ENV, NODE_ENV and PASSENGER_APP_ENV)&lt;/dt&gt;
                  &lt;dd&gt;production&lt;/dd&gt;
  
                      &lt;dt&gt;Ruby interpreter command&lt;/dt&gt;
                      &lt;dd&gt;&lt;pre&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2/wrappers/ruby&lt;/pre&gt;&lt;/dd&gt;
  
                  &lt;dt&gt;User and groups&lt;/dt&gt;
                  &lt;dd&gt;&lt;pre&gt;uid=&lt;wbr&gt;500(ec2-user) gid=&lt;wbr&gt;500(ec2-user) groups=&lt;wbr&gt;500(ec2-user),&lt;wbr&gt;10(wheel)
  &lt;/pre&gt;&lt;/dd&gt;
                  &lt;dt&gt;Environment variables&lt;/dt&gt;
                  &lt;dd&gt;&lt;pre&gt;LESS_TERMCAP_mb=&lt;wbr&gt;&amp;#27;[01;&lt;wbr&gt;31m
  rvm_bin_path=&lt;wbr&gt;/home/ec2-user/.rvm/bin
  HOSTNAME=&lt;wbr&gt;ip-172-31-40-110
  LESS_TERMCAP_md=&lt;wbr&gt;&amp;#27;[01;&lt;wbr&gt;38;&lt;wbr&gt;5;&lt;wbr&gt;208m
  GEM_HOME=&lt;wbr&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2
  LESS_TERMCAP_me=&lt;wbr&gt;&amp;#27;[0m
  SHELL=&lt;wbr&gt;/bin/bash
  TERM=&lt;wbr&gt;xterm
  HISTSIZE=&lt;wbr&gt;1000
  IRBRC=&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2/.irbrc
  EC2_AMITOOL_HOME=&lt;wbr&gt;/opt/aws/amitools/ec2
  PYTHON_INSTALL_LAYOUT=&lt;wbr&gt;amzn
  PASSENGER_DEBUG_DIR=&lt;wbr&gt;/tmp/passenger.spawn-debug.XXXXE01n1W
  MY_RUBY_HOME=&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2
  LESS_TERMCAP_ue=&lt;wbr&gt;&amp;#27;[0m
  USER=&lt;wbr&gt;ec2-user
  _system_type=&lt;wbr&gt;Linux
  EC2_HOME=&lt;wbr&gt;/opt/aws/apitools/ec2
  rvm_path=&lt;wbr&gt;/home/ec2-user/.rvm
  LESS_TERMCAP_us=&lt;wbr&gt;&amp;#27;[04;&lt;wbr&gt;38;&lt;wbr&gt;5;&lt;wbr&gt;111m
  PASSENGER_USE_FEEDBACK_FD=&lt;wbr&gt;true
  rvm_prefix=&lt;wbr&gt;/home/ec2-user
  MAIL=&lt;wbr&gt;/var/spool/mail/ec2-user
  PATH=&lt;wbr&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2/bin:&lt;wbr&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2@global/bin:&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2/bin:&lt;wbr&gt;/home/ec2-user/.rvm/bin:&lt;wbr&gt;/sbin:&lt;wbr&gt;/usr/sbin:&lt;wbr&gt;/bin:&lt;wbr&gt;/usr/bin:&lt;wbr&gt;/usr/local/sbin:&lt;wbr&gt;/opt/aws/bin:&lt;wbr&gt;/home/ec2-user/.local/bin:&lt;wbr&gt;/home/ec2-user/bin
  PWD=&lt;wbr&gt;/home/ec2-user/deploy/app/kickmarket_eu/current
  JAVA_HOME=&lt;wbr&gt;/usr/lib/jvm/jre
  AWS_CLOUDWATCH_HOME=&lt;wbr&gt;/opt/aws/apitools/mon
  LANG=&lt;wbr&gt;en_US.UTF-8
  _system_arch=&lt;wbr&gt;x86_64
  _system_version=&lt;wbr&gt;2015.09
  HISTCONTROL=&lt;wbr&gt;ignoredups
  rvm_version=&lt;wbr&gt;1.26.11 (latest)
  HOME=&lt;wbr&gt;/home/ec2-user
  SHLVL=&lt;wbr&gt;2
  AWS_PATH=&lt;wbr&gt;/opt/aws
  rvm_ruby_string=&lt;wbr&gt;ruby-2.1.2
  AWS_AUTO_SCALING_HOME=&lt;wbr&gt;/opt/aws/apitools/as
  LOGNAME=&lt;wbr&gt;ec2-user
  SERVER_SOFTWARE=&lt;wbr&gt;nginx/1.8.0 Phusion_Passenger/5.0.21
  CVS_RSH=&lt;wbr&gt;ssh
  GEM_PATH=&lt;wbr&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2:&lt;wbr&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2@global
  AWS_ELB_HOME=&lt;wbr&gt;/opt/aws/apitools/elb
  LESSOPEN=&lt;wbr&gt;||/usr/bin/lesspipe.sh %s
  rvm_delete_flag=&lt;wbr&gt;0
  RUBY_VERSION=&lt;wbr&gt;ruby-2.1.2
  _system_name=&lt;wbr&gt;Amazon
  LESS_TERMCAP_se=&lt;wbr&gt;&amp;#27;[0m
  IN_PASSENGER=&lt;wbr&gt;1
  PYTHONUNBUFFERED=&lt;wbr&gt;1
  NODE_PATH=&lt;wbr&gt;/home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/nodejs_supportlib
  RAILS_ENV=&lt;wbr&gt;production
  RACK_ENV=&lt;wbr&gt;production
  WSGI_ENV=&lt;wbr&gt;production
  NODE_ENV=&lt;wbr&gt;production
  PASSENGER_APP_ENV=&lt;wbr&gt;production
  &lt;/pre&gt;&lt;/dd&gt;
                  &lt;dt&gt;Ulimits&lt;/dt&gt;
                  &lt;dd&gt;&lt;pre&gt;Unknown&lt;/pre&gt;&lt;/dd&gt;
  
                      &lt;dt&gt;System metrics&lt;/dt&gt;
                      &lt;dd&gt;&lt;pre&gt;------------- General -------------
  Kernel version    :&lt;wbr&gt; 4.1.13-18.26.amzn1.x86_64
  Uptime            :&lt;wbr&gt; 26m 30s
  Load averages     :&lt;wbr&gt; 2.05%,&lt;wbr&gt; 1.83%,&lt;wbr&gt; 1.41%
  Fork rate         :&lt;wbr&gt; unknown
  
  ------------- CPU -------------
  Number of CPUs    :&lt;wbr&gt;    1
  Average CPU usage :&lt;wbr&gt; 100%  -- 100% user,&lt;wbr&gt;   0% nice,&lt;wbr&gt;   0% system,&lt;wbr&gt;   0% idle
    CPU 1           :&lt;wbr&gt; 100%  -- 100% user,&lt;wbr&gt;   0% nice,&lt;wbr&gt;   0% system,&lt;wbr&gt;   0% idle
  I/O pressure      :&lt;wbr&gt;   0%
    CPU 1           :&lt;wbr&gt;   0%
  Interference from other VMs:&lt;wbr&gt;  87%
    CPU 1                    :&lt;wbr&gt;  87%
  
  ------------- Memory -------------
  RAM total         :&lt;wbr&gt;    995 MB
  RAM used          :&lt;wbr&gt;    449 MB (45%)
  RAM free          :&lt;wbr&gt;    545 MB
  Swap total        :&lt;wbr&gt;   1279 MB
  Swap used         :&lt;wbr&gt;      0 MB (0%)
  Swap free         :&lt;wbr&gt;   1279 MB
  Swap in           :&lt;wbr&gt; unknown
  Swap out          :&lt;wbr&gt; unknown
  
  &lt;/pre&gt;&lt;/dd&gt;
  
  
                      &lt;dt&gt;General Ruby interpreter information&lt;/dt&gt;
                      &lt;dd&gt;&lt;pre&gt;RUBY_VERSION =&lt;wbr&gt; 2.1.2
  RUBY_PLATFORM =&lt;wbr&gt; x86_64-linux
  RUBY_ENGINE =&lt;wbr&gt; ruby
  RubyGems version =&lt;wbr&gt; 2.4.8
  RubyGems paths =&lt;wbr&gt; [&amp;quot;/home/ec2-user/.rvm/gems/ruby-2.1.2&amp;quot;,&lt;wbr&gt; &amp;quot;/home/ec2-user/.rvm/gems/ruby-2.1.2@global&amp;quot;]
  &lt;/pre&gt;&lt;/dd&gt;
  
  
                      &lt;dt&gt;Ruby configuration (RbConfig::CONFIG)&lt;/dt&gt;
                      &lt;dd&gt;&lt;pre&gt;DESTDIR =&lt;wbr&gt;
  MAJOR =&lt;wbr&gt; 2
  MINOR =&lt;wbr&gt; 1
  TEENY =&lt;wbr&gt; 0
  PATCHLEVEL =&lt;wbr&gt; 95
  INSTALL =&lt;wbr&gt; /usr/bin/install -c
  EXEEXT =&lt;wbr&gt;
  prefix =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2
  ruby_install_name =&lt;wbr&gt; ruby
  RUBY_INSTALL_NAME =&lt;wbr&gt; ruby
  RUBY_SO_NAME =&lt;wbr&gt; ruby
  exec =&lt;wbr&gt; exec
  ruby_pc =&lt;wbr&gt; ruby-2.1.pc
  PACKAGE =&lt;wbr&gt; ruby
  BUILTIN_TRANSSRCS =&lt;wbr&gt;  newline.c
  USE_RUBYGEMS =&lt;wbr&gt; YES
  MANTYPE =&lt;wbr&gt; doc
  NROFF =&lt;wbr&gt; /usr/bin/nroff
  vendorarchhdrdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/ruby-2.1.0/vendor_ruby/x86_64-linux
  sitearchhdrdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/ruby-2.1.0/site_ruby/x86_64-linux
  rubyarchhdrdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/ruby-2.1.0/x86_64-linux
  vendorhdrdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/ruby-2.1.0/vendor_ruby
  sitehdrdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/ruby-2.1.0/site_ruby
  rubyhdrdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/ruby-2.1.0
  RUBY_SEARCH_PATH =&lt;wbr&gt;
  UNIVERSAL_INTS =&lt;wbr&gt;
  UNIVERSAL_ARCHNAMES =&lt;wbr&gt;
  configure_args =&lt;wbr&gt;  &amp;apos;--prefix=&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2&amp;apos; &amp;apos;--disable-install-doc&amp;apos; &amp;apos;--enable-shared&amp;apos;
  vendorarchdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/vendor_ruby/2.1.0/x86_64-linux
  vendorlibdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/vendor_ruby/2.1.0
  vendordir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/vendor_ruby
  sitearchdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/x86_64-linux
  sitelibdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0
  sitedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby
  rubyarchdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux
  rubylibdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0
  ruby_version =&lt;wbr&gt; 2.1.0
  sitearch =&lt;wbr&gt; x86_64-linux
  arch =&lt;wbr&gt; x86_64-linux
  sitearchincludedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/x86_64-linux
  archincludedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include/x86_64-linux
  sitearchlibdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/x86_64-linux
  archlibdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/x86_64-linux
  libdirname =&lt;wbr&gt; libdir
  RUBY_EXEC_PREFIX =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2
  RUBY_LIB_VERSION =&lt;wbr&gt;
  RUBY_LIB_VERSION_STYLE =&lt;wbr&gt; 3 /* full */
  RI_BASE_NAME =&lt;wbr&gt; ri
  ridir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/ri
  rubysitearchprefix =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/x86_64-linux
  rubyarchprefix =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/x86_64-linux
  MAKEFILES =&lt;wbr&gt; Makefile GNUmakefile
  PLATFORM_DIR =&lt;wbr&gt;
  THREAD_MODEL =&lt;wbr&gt; pthread
  SYMBOL_PREFIX =&lt;wbr&gt;
  EXPORT_PREFIX =&lt;wbr&gt;
  COMMON_HEADERS =&lt;wbr&gt;
  COMMON_MACROS =&lt;wbr&gt;
  COMMON_LIBS =&lt;wbr&gt;
  MAINLIBS =&lt;wbr&gt;
  ENABLE_SHARED =&lt;wbr&gt; yes
  DLDLIBS =&lt;wbr&gt;  -lc
  SOLIBS =&lt;wbr&gt; -lpthread -ldl -lcrypt -lm
  LIBRUBYARG_SHARED =&lt;wbr&gt; -Wl,&lt;wbr&gt;-R -Wl,&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib -L/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib -lruby
  LIBRUBYARG_STATIC =&lt;wbr&gt; -Wl,&lt;wbr&gt;-R -Wl,&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib -L/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib -lruby-static
  LIBRUBYARG =&lt;wbr&gt; -Wl,&lt;wbr&gt;-R -Wl,&lt;wbr&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib -L/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib -lruby
  LIBRUBY =&lt;wbr&gt; libruby.so.2.1.0
  LIBRUBY_ALIASES =&lt;wbr&gt; libruby.so.2.1 libruby.so
  LIBRUBY_SO =&lt;wbr&gt; libruby.so.2.1.0
  LIBRUBY_A =&lt;wbr&gt; libruby-static.a
  RUBYW_INSTALL_NAME =&lt;wbr&gt;
  rubyw_install_name =&lt;wbr&gt;
  EXTDLDFLAGS =&lt;wbr&gt;
  EXTLDFLAGS =&lt;wbr&gt;
  strict_warnflags =&lt;wbr&gt; -ansi -std=&lt;wbr&gt;iso9899:&lt;wbr&gt;199409
  warnflags =&lt;wbr&gt; -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration
  debugflags =&lt;wbr&gt; -ggdb3
  optflags =&lt;wbr&gt; -O3 -fno-fast-math
  cxxflags =&lt;wbr&gt;  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration
  cflags =&lt;wbr&gt;  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration
  cppflags =&lt;wbr&gt;
  NULLCMD =&lt;wbr&gt; :&lt;wbr&gt;
  DLNOBJ =&lt;wbr&gt; dln.o
  INSTALLDOC =&lt;wbr&gt; nodoc
  CAPITARGET =&lt;wbr&gt; nodoc
  RDOCTARGET =&lt;wbr&gt; nodoc
  DTRACE_GLOMMED_OBJ =&lt;wbr&gt;
  DTRACE_OBJ =&lt;wbr&gt;
  DTRACE_EXT =&lt;wbr&gt; dmyh
  EXECUTABLE_EXTS =&lt;wbr&gt;
  ARCHFILE =&lt;wbr&gt;
  LIBRUBY_RELATIVE =&lt;wbr&gt; no
  EXTOUT =&lt;wbr&gt; .ext
  RUNRUBY_COMMAND =&lt;wbr&gt; $(MINIRUBY) $(srcdir)/tool/runruby.rb --extout=&lt;wbr&gt;.ext $(RUNRUBYOPT)
  PREP =&lt;wbr&gt; miniruby
  BTESTRUBY =&lt;wbr&gt; $(MINIRUBY)
  CROSS_COMPILING =&lt;wbr&gt; no
  TEST_RUNNABLE =&lt;wbr&gt; yes
  rubylibprefix =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby
  setup =&lt;wbr&gt; Setup
  EXTSTATIC =&lt;wbr&gt;
  STRIP =&lt;wbr&gt; strip -S -x
  TRY_LINK =&lt;wbr&gt;
  LIBPATHENV =&lt;wbr&gt; LD_LIBRARY_PATH
  RPATHFLAG =&lt;wbr&gt;  -Wl,&lt;wbr&gt;-R%1$-s
  LIBPATHFLAG =&lt;wbr&gt;  -L%1$-s
  LINK_SO =&lt;wbr&gt;
  LIBEXT =&lt;wbr&gt; a
  DLEXT2 =&lt;wbr&gt;
  DLEXT =&lt;wbr&gt; so
  LDSHAREDXX =&lt;wbr&gt; g++ -shared
  LDSHARED =&lt;wbr&gt; gcc -shared
  CCDLFLAGS =&lt;wbr&gt; -fPIC
  STATIC =&lt;wbr&gt;
  ARCH_FLAG =&lt;wbr&gt;
  DLDFLAGS =&lt;wbr&gt;
  ALLOCA =&lt;wbr&gt;
  codesign =&lt;wbr&gt;
  POSTLINK =&lt;wbr&gt; :&lt;wbr&gt;
  WERRORFLAG =&lt;wbr&gt; -Werror
  CHDIR =&lt;wbr&gt; cd -P
  RMALL =&lt;wbr&gt; rm -fr
  RMDIRS =&lt;wbr&gt; rmdir --ignore-fail-on-non-empty -p
  RMDIR =&lt;wbr&gt; rmdir --ignore-fail-on-non-empty
  CP =&lt;wbr&gt; cp
  RM =&lt;wbr&gt; rm -f
  PKG_CONFIG =&lt;wbr&gt; pkg-config
  PYTHON =&lt;wbr&gt;
  DOXYGEN =&lt;wbr&gt; doxygen
  DOT =&lt;wbr&gt;
  DTRACE =&lt;wbr&gt;
  MAKEDIRS =&lt;wbr&gt; /bin/mkdir -p
  MKDIR_P =&lt;wbr&gt; /bin/mkdir -p
  INSTALL_DATA =&lt;wbr&gt; /usr/bin/install -c -m 644
  INSTALL_SCRIPT =&lt;wbr&gt; /usr/bin/install -c
  INSTALL_PROGRAM =&lt;wbr&gt; /usr/bin/install -c
  SET_MAKE =&lt;wbr&gt;
  LN_S =&lt;wbr&gt; ln -s
  NM =&lt;wbr&gt; nm
  DLLWRAP =&lt;wbr&gt;
  WINDRES =&lt;wbr&gt;
  OBJCOPY =&lt;wbr&gt; :&lt;wbr&gt;
  OBJDUMP =&lt;wbr&gt; objdump
  ASFLAGS =&lt;wbr&gt;
  AS =&lt;wbr&gt; as
  AR =&lt;wbr&gt; ar
  RANLIB =&lt;wbr&gt; ranlib
  try_header =&lt;wbr&gt;
  CC_VERSION =&lt;wbr&gt; gcc -v
  COUTFLAG =&lt;wbr&gt; -o
  OUTFLAG =&lt;wbr&gt; -o
  CPPOUTFILE =&lt;wbr&gt; -o conftest.i
  GNU_LD =&lt;wbr&gt; yes
  LD =&lt;wbr&gt; ld
  GCC =&lt;wbr&gt; yes
  EGREP =&lt;wbr&gt; /bin/grep -E
  GREP =&lt;wbr&gt; /bin/grep
  CPP =&lt;wbr&gt; gcc -E
  CXXFLAGS =&lt;wbr&gt;  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration
  CXX =&lt;wbr&gt; g++
  OBJEXT =&lt;wbr&gt; o
  CPPFLAGS =&lt;wbr&gt;
  LDFLAGS =&lt;wbr&gt; -L. -fstack-protector -rdynamic -Wl,&lt;wbr&gt;-export-dynamic
  CFLAGS =&lt;wbr&gt;  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration  -fPIC
  CC =&lt;wbr&gt; gcc
  NACL_SDK_VARIANT =&lt;wbr&gt;
  NACL_SDK_ROOT =&lt;wbr&gt;
  NACL_TOOLCHAIN =&lt;wbr&gt;
  target_os =&lt;wbr&gt; linux
  target_vendor =&lt;wbr&gt; unknown
  target_cpu =&lt;wbr&gt; x86_64
  target =&lt;wbr&gt; x86_64-unknown-linux-gnu
  host_os =&lt;wbr&gt; linux-gnu
  host_vendor =&lt;wbr&gt; unknown
  host_cpu =&lt;wbr&gt; x86_64
  host =&lt;wbr&gt; x86_64-unknown-linux-gnu
  RUBY_VERSION_NAME =&lt;wbr&gt; ruby-2.1.0
  RUBYW_BASE_NAME =&lt;wbr&gt; rubyw
  RUBY_BASE_NAME =&lt;wbr&gt; ruby
  build_os =&lt;wbr&gt; linux-gnu
  build_vendor =&lt;wbr&gt; unknown
  build_cpu =&lt;wbr&gt; x86_64
  build =&lt;wbr&gt; x86_64-unknown-linux-gnu
  RUBY_RELEASE_DATE =&lt;wbr&gt; 2014-05-08
  RUBY_PROGRAM_VERSION =&lt;wbr&gt; 2.1.2
  target_alias =&lt;wbr&gt;
  host_alias =&lt;wbr&gt;
  build_alias =&lt;wbr&gt;
  LIBS =&lt;wbr&gt; -lpthread -ldl -lcrypt -lm
  ECHO_T =&lt;wbr&gt;
  ECHO_N =&lt;wbr&gt; -n
  ECHO_C =&lt;wbr&gt;
  DEFS =&lt;wbr&gt;
  mandir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/man
  localedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/locale
  libdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib
  psdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/doc/ruby
  pdfdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/doc/ruby
  dvidir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/doc/ruby
  htmldir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/doc/ruby
  infodir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/info
  docdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share/doc/ruby
  oldincludedir =&lt;wbr&gt; /usr/include
  includedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/include
  localstatedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/var
  sharedstatedir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/com
  sysconfdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/etc
  datadir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share
  datarootdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/share
  libexecdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/libexec
  sbindir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/sbin
  bindir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/bin
  exec_prefix =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2
  PACKAGE_URL =&lt;wbr&gt;
  PACKAGE_BUGREPORT =&lt;wbr&gt;
  PACKAGE_STRING =&lt;wbr&gt;
  PACKAGE_VERSION =&lt;wbr&gt;
  PACKAGE_TARNAME =&lt;wbr&gt;
  PACKAGE_NAME =&lt;wbr&gt;
  PATH_SEPARATOR =&lt;wbr&gt; :&lt;wbr&gt;
  SHELL =&lt;wbr&gt; /bin/sh
  archdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux
  topdir =&lt;wbr&gt; /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux
  &lt;/pre&gt;&lt;/dd&gt;
  
  
  
                      &lt;dt&gt;Ruby load path ($LOAD_PATH)&lt;/dt&gt;
                      &lt;dd&gt;&lt;pre&gt;/home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/x86_64-linux
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/vendor_ruby/2.1.0
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/vendor_ruby/2.1.0/x86_64-linux
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/vendor_ruby
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux
  &lt;/pre&gt;&lt;/dd&gt;
  
  
                      &lt;dt&gt;Ruby loaded libraries ($LOADED_FEATURES)&lt;/dt&gt;
                      &lt;dd&gt;&lt;pre&gt;enumerator.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/enc/encdb.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/enc/trans/transdb.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/rbconfig.rb
  thread.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/thread.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/compatibility.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/defaults.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/deprecate.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/errors.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/version.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/requirement.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/platform.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/basic_specification.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/stub_specification.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/util/stringio.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/specification.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/exceptions.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_gem.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/monitor.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/constants.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/etc.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/fileutils.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tmpdir.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/utils/tmpio.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/platform_info.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/platform_info/operating_system.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/platform_info/ruby.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/platform_info/binary_compatibility.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/buildout/ruby/ruby-2.1.2-x86_64-linux/passenger_native_support.so
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/native_support.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/socket.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/socket.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/pathname.so
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/pathname.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/ruby_core_enhancements.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/ruby_core_io_enhancements.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/base64.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/utils.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/preloader_shared_helpers.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/public_api.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/debug_logging.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/shellwords.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/utils/shellwords.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/loader_shared_helpers.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/fcntl.so
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/message_channel.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/message_client.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/utils/native_support_utils.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/utils/unseekable_socket.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/request_handler/thread_handler.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/request_handler.rb
  /home/ec2-user/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/x86_64-linux/stringio.so
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/utils/tee_input.rb
  /home/ec2-user/.rvm/gems/ruby-2.1.2/gems/passenger-5.0.21/src/ruby_supportlib/phusion_passenger/rack/thread_handler_extension.rb
  &lt;/pre&gt;&lt;/dd&gt;
  
                  &lt;/dl&gt;
              &lt;/div&gt;
          &lt;/div&gt;
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              &lt;div class="container"&gt;
                  Powered by &lt;a href="https://www.phusionpassenger.com/"&gt;Phusion Passenger&lt;/a&gt;,
                  &lt;tt&gt;mod_rails&lt;/tt&gt; / &lt;tt&gt;mod_rack&lt;/tt&gt; for Apache and Nginx.
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  &lt;/body&gt;
  </code></pre>