Hi,
Few years ago, you actively maintained berkshelf (with all the other dependencies).
However now, they all have RC bugs against them and failing tests.
Starting with ruby-websocket-parser, there's an RC bug against it and it hasn't been in testing since 1578 days (~ 4 years); last upload was on 13th October, 2015.
I wanted to file a RM bug against it. But then I checked for its rev-deps.