tox + run on docker:
docker-compose.override.yml:
```
version: '2'
services:
swh-loader:
volumes:
# - "$SWH_ENVIRONMENT_HOME/swh-loader-core:/src/swh-loader-core"
- "$SWH_ENVIRONMENT_HOME/swh-loader-mercurial:/src/swh-loader-mercurial"
```
```
$ doco up
$ doco exec swh-loader run mercurial https://www.mercurial-scm.org/repo/evolve/
```
Finally:
```
doco exec swh-loader swh loader run mercurial https://www.mercurial-scm.org/repo/evolve/
WARNING:swh.core.cli:Could not load subcommand search: cannot import name 'get_journal_client' from 'swh.journal.cli' (/srv/softwareheritage/venv/lib/python3.7/site-packages/swh/journal/cli.py)
INFO:swh.core.config:Loading config file /loader.yml
WARNING:swh.loader.mercurial.Bundle20Loader:No matching revision for tag 5.6.1 (hg changeset: 70694b2621ba9d919bc38303f8901e84caf5da0f). Skipping
{'status': 'eventful'}
```