Need help with Travis errors in PyDy

[Nikhil Pappu]

I apologize if this is an elementary question but the Travis errors in PyDy have been bugging me. 

I didn't have a problem like this in SymPy.

These are the pulls I made :

https://github.com/pydy/pydy/pull/391

https://github.com/pydy/pydy/pull/392

The first one is a fix.

The second one adds documentation. I don't see why I a pull which adds documentation would not pass the Travis tests.

The Travis builds seem to have a lot of unrelated errors. 

Can anyone explain what is wrong in these cases? Also, is there a good way to look for errors in your code from other errors?