Why is my log level not being used when loadapp from paste.deploy?

Why is my log level not being used when loadapp from paste.deploy?

I want to temporailiy turn on debug messages in a production pyramid
projeckt so I adjusted the production.ini file, pushed it to Heroku and
saw only error and warn level messages.
So I thought, that seems odd since if I start the pyramid application like
the following on my local PC I get all the log level messages.
env/bin/pserve production.ini
OK, so that's not exactly how it runs on Heroku, it is actually run from a
little bit of python that looks like this (in a file called runapp.py):
import os
from paste.deploy import loadapp
from waitress import serve
if __name__ == "__main__":
port = int(os.environ.get("PORT", 5000))
app = loadapp('config:production.ini', relative_to='.')
serve(app, host='0.0.0.0', port=port)
Now, sure enough if I do this on my local PC I get the same behavior as
when it is deployed to Heroku (hardly surprising).
python runapp.py
My question is, what am I missing here? Why does running it the second way
result in no log messages other than ERROR and WARN being output to
standard out? Surely, since it is using the same production.ini file it
should work the same as if I use the pserve process?
Here is my logging section from production.ini:
###
# logging configuration
# http://docs.pylonsproject.org/projects/pyramid/en/latest/narr/logging.html
###
[loggers]
keys = root, test
[handlers]
keys = console
[formatters]
keys = generic
[logger_root]
level = DEBUG
handlers = console
[logger_test]
level = DEBUG
handlers = console
qualname = test
[handler_console]
class = StreamHandler
args = (sys.stderr,)
level = DEBUG
formatter = generic
[formatter_generic]
format = %(asctime)s %(levelname)-5.5s [%(name)s][%(threadName)s] %(message)s