- Fix bug where we were overwriting `remote_emsg` with None, and add test
that would have caught it.
- Suppress differences due solely to the codejail sandbox directory name
differing (in stack traces), and add test for this. Configurable because
we'll need to add an additional search/replace pair for the sandbox venv
paths.
- Add a variety of custom attributes, replacing existing ones. The attrs
now have a prefixed naming scheme to simplify searching.
- Add slug to log output so we can more readily correlate traces and logs,
as well as logs across services.
- Fix typo in error message.
- Fix existing import sort order lint.
a960cdff8d