-----> Ruby app detected
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.4.1
###### WARNING:
       Removing `Gemfile.lock` because it was generated on Windows.
       Bundler will do a full resolve so native gems are handled properly.
       This may result in unexpected gem versions being used in your app.
       In rare occasions Bundler may not be able to resolve your dependencies at all.
       https://devcenter.heroku.com/articles/bundler-windows-gemfile
-----> Installing dependencies using bundler 1.15.2
       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4
       The git source `git://github.com/activerecord-hackery/ransack.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
       The git source `git://github.com/galetahub/ckeditor.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
       Fetching git://github.com/activerecord-hackery/ransack.git
       Fetching git://github.com/galetahub/ckeditor.git
       Fetching gem metadata from https://rubygems.org/........
       Fetching version metadata from https://rubygems.org/..
       Fetching dependency metadata from https://rubygems.org/.
       Resolving dependencies...
       Bundler could not find compatible versions for gem "activemodel":
         In Gemfile:
           rails (= 5.2.0) was resolved to 5.2.0, which depends on
             activemodel (= 5.2.0)
       
           rails (= 5.2.0) was resolved to 5.2.0, which depends on
             activemodel (= 5.2.0)
       
           simple_form (>= 3.2.1, ~> 3.2) was resolved to 3.2.1, which depends on
             activemodel (< 5.1, > 4)
       Bundler Output: The git source `git://github.com/activerecord-hackery/ransack.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
       The git source `git://github.com/galetahub/ckeditor.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
       Fetching git://github.com/activerecord-hackery/ransack.git
       Fetching git://github.com/galetahub/ckeditor.git
       Fetching gem metadata from https://rubygems.org/........
       Fetching version metadata from https://rubygems.org/..
       Fetching dependency metadata from https://rubygems.org/.
       Resolving dependencies...
       Bundler could not find compatible versions for gem "activemodel":
         In Gemfile:
           rails (= 5.2.0) was resolved to 5.2.0, which depends on
             activemodel (= 5.2.0)
       
           rails (= 5.2.0) was resolved to 5.2.0, which depends on
             activemodel (= 5.2.0)
       
           simple_form (>= 3.2.1, ~> 3.2) was resolved to 3.2.1, which depends on
             activemodel (< 5.1, > 4)
 !
 !     Failed to install gems via Bundler.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push failed