Currently TravisCI fails in master with the next log:
ERROR: Error installing jekyll:
There are no versions of jekyll-sass-converter (~> 2.0) compatible with your Ruby & RubyGems. Maybe try installing an older version of the gem you're looking for?
jekyll-sass-converter requires Ruby version >= 2.4.0. The current ruby version is 2.3.3.222.
1 gem installed
Fetching gem metadata from https://rubygems.org/..........
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies...
Bundler could not find compatible versions for gem "bundler":
In Gemfile:
bundler (~> 2.0.1)
Current Bundler version:
bundler (2.1.4)
This Gemfile requires a different version of Bundler.
Perhaps you need to update Bundler by running `gem install bundler`?
Could not find gem 'bundler (~> 2.0.1)' in any of the relevant sources:
the local ruby installation
The command "gem update --system; gem install bundler jekyll; bundle install;" failed and exited with 6 during .
Currently TravisCI fails in master with the next log: