Pipeline failing for flake8 #613

$ flake8
/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/flake8/engine.py:33: PkgResourcesDeprecationWarning: Parameters to load are deprecated.  Call .resolve and .require separately.
  checker = entry.load(require=False)
/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/django/contrib/webdesign/__init__.py:11: RemovedInDjango110Warning: django.contrib.webdesign will be removed in Django 1.10. The {% lorem %} tag is now included in the built-in tags.
  RemovedInDjango110Warning
./junction/proposals/views.py:296:5: E303 too many blank lines (2)
Monkey patching...
/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/django_markdown/urls.py:8: RemovedInDjango110Warning: django.conf.urls.patterns() is deprecated and will be removed in Django 1.10. Update your urlpatterns to be a list of django.conf.urls.url() instances instead.
  '', url('preview/$', preview, name='django_markdown_preview'))
System check identified some issues:
WARNINGS:
?: (1_8.W001) The standalone TEMPLATE_* settings were deprecated in Django 1.8 and the TEMPLATES dictionary takes precedence. You must put the values of the following settings into your default TEMPLATES dict: TEMPLATE_DEBUG.
 
 -------------- celery@travis-job-9adbea46-f7f4-4aa2-a7d3-0f3005734c49 v3.1.20 (Cipater)
---- **** ----- 
--- * ***  * -- Linux-4.15.0-1028-gcp-x86_64-with-debian-stretch-sid
-- * - **** --- 
- ** ---------- [config]
- ** ---------- .> app:         junction:0x7f9e3d0b2198
- ** ---------- .> transport:   redis://localhost:6379/0
- ** ---------- .> results:     redis://localhost:6379/0
- *** --- * --- .> concurrency: 2 (prefork)
-- ******* ---- 
--- ***** ----- [queues]
 -------------- .> tasks            exchange=tasks(topic) key=task.#
                .> transient        exchange=tasks(topic) key=transient.#
[tasks]
  . junction.conferences.tasks.add
  . junction.proposals.services.send_mail_for_new_comment
  . junction.proposals.services.send_mail_for_new_proposal
  . junction.proposals.services.send_mail_for_proposal_content
The command "flake8" exited with 1.