add make

1 job for master in 13 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #2053
docker-build
build ruby2.3

00:00:13

 
Name Stage Failure
failed
build ruby2.3 Test There is an unknown failure, please try again
  /usr/local/bundle/extensions/x86_64-linux/2.3.0-static/ffi-1.9.14/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /usr/local/bundle/gems/ffi-1.9.14 for inspection.
Results logged to /usr/local/bundle/extensions/x86_64-linux/2.3.0-static/ffi-1.9.14/gem_make.out
14 gems installed
The command '/bin/sh -c gem install rake rspec rubocop jekyll' returned a non-zero code: 1
ERROR: Build failed: exit status 1