Fetching source index from https://rubygems.org/
Installing rake (10.1.0) 
Installing i18n (0.6.5) 
Installing multi_json (1.8.2) 
Installing activesupport (3.2.15) 
Installing builder (3.0.4) 
Installing activemodel (3.2.15) 
Installing erubis (2.7.0) 
Installing journey (1.0.4) 
Installing rack (1.4.5) 
Installing rack-cache (1.2) 
Installing rack-test (0.6.2) 
Installing hike (1.2.3) 
Installing tilt (1.4.1) 
Installing sprockets (2.2.2) 
Installing actionpack (3.2.15) 
Installing mime-types (1.25) 
Installing polyglot (0.3.3) 
Installing treetop (1.4.15) 
Installing mail (2.5.4) 
Installing actionmailer (3.2.15) 
Installing arel (3.0.2) 
Installing tzinfo (0.3.38) 
Installing activerecord (3.2.15) 
Installing activeresource (3.2.15) 
Using bundler (1.3.5) 
Installing rack-ssl (1.3.3) 
Using json (1.7.7) 
Installing rdoc (3.12.2) 
Installing thor (0.18.1) 
Installing railties (3.2.15) 
Installing rails (3.2.15) 
Installing acts-as-taggable-on (2.4.1) 
Installing asciidoctor (0.1.3) 
Installing backports (3.3.2) 
Installing bcrypt-ruby (3.1.1) 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /usr/local/bin/ruby extconf.rb 

Gem files will remain installed in /data/home/git/gitlab/vendor/bundle/ruby/2.0.0/gems/bcrypt-ruby-3.1.1 for inspection.
Results logged to /data/home/git/gitlab/vendor/bundle/ruby/2.0.0/gems/bcrypt-ruby-3.1.1/ext/mri/gem_make.out
An error occurred while installing bcrypt-ruby (3.1.1), and Bundler cannot
continue.
Make sure that `gem install bcrypt-ruby -v '3.1.1'` succeeds before bundling.