gistfile1.txt

mon@robdrake:~/memebot$ bundle install --deployment
Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Installing i18n 0.7.0
Using json 1.8.1
Installing minitest 5.5.0
Installing thread_safe 0.3.4
Installing tzinfo 1.2.2
Installing activesupport 4.2.0
Installing hitimes 1.2.2 with native extensions

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /usr/bin/ruby2.2 -r ./siteconf20150830-4268-1je6g6h.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in /home/mon/memebot/vendor/bundle/ruby/2.2.0/gems/hitimes-1.                        2.2 for inspection.
Results logged to /home/mon/memebot/vendor/bundle/ruby/2.2.0/extensions/x86_64-linux/2.2.0/hi                        times-1.2.2/gem_make.out
An error occurred while installing hitimes (1.2.2), and Bundler cannot continue.
Make sure that `gem install hitimes -v '1.2.2'` succeeds before bundling.