[Feedback] Make an explicit mention of running with Ruby2.2 or 2.1 in documentation
I realise that living on bleeding edge (Ruby 2.3) implies bleeding but perhaps some folks can be spared from some head scratching time if they knew Ruby 2.3 will cause gitlab to malfunction with no apparent error.
In my case, project creation kept failing with error pointing towards gitlab-shell but bin/check
kept passing and it took me a while to realise that in a recent update ruby 2.3 got installed. Sure enough when I went into /home/git/gitlab/vendor/bundle some gems were under ruby23 while others were under ruby22 (even on a fresh bundle reinstall).
I have no idea how this actually affects in reality (never used ruby myself) but after I restricted the system installation to ruby 2.2, things went back to normal.