Master branch failing/error tests

[Tom Floyer]

I'm trying to run mongoengine tests locally, but i get errors and
fails. I will really appreciate your help, because I'm not able to
troubleshoot this problem on my own.

https://pastebin.com/8d5q4y1D

$ mongod --version
db version v3.6.3
git version: 9586e557d54ef70f9ca4b43c26892cd55257e1a5
OpenSSL version: OpenSSL 1.0.2o 27 Mar 2018
allocator: system
modules: none
build environment:
distarch: x86_64
target_arch: x86_64


$ pip freeze
mongoengine==0.15.0
nose==1.3.7
pymongo==3.6.1
six==1.11.0