Unless I misunderstood, this is already the case.

See for instance the errors reported by the PyPI loader in production: http://kibana0.internal.softwareheritage.org:5601/app/kibana#/dashboard/32632370-c0bd-11e8-8222-07f3ec376cd5?_g=(refreshInterval%3A(pause%3A!t%2Cvalue%3A0)%2Ctime%3A(from%3A'2018-10-16T22%3A00%3A00.000Z'%2Cmode%3Aabsolute%2Cto%3A'2018-10-31T22%3A59%3A59.000Z'))

Sorry, I meant the content of local variables in the stack.

Tip: we can do something based on the collect_extra_debug_data defined here: https://github.com/ProgVal/Limnoria/blob/master/src/utils/python.py

@vlorentz I think this task has been addressed via sentry?