Comment 1 for bug 1863122

Same problem here with Debian Buster and Ubuntu Bionic.

 2020-02-24 08:32:46.813 | Attempting uninstall: virtualenv
 2020-02-24 08:32:46.815 | Found existing installation: virtualenv 15.1.0
 2020-02-24 08:32:46.816 | Uninstalling virtualenv-15.1.0:
 2020-02-24 08:32:46.817 | Successfully uninstalled virtualenv-15.1.0
 2020-02-24 08:32:46.923 | Successfully installed appdirs-1.4.3 configparser-4.0.2 contextlib2-0.6.0.post1 distlib-0.3.0 filelock-3.0.12 importlib-metadata-1.5.0 importlib-resources-1.0.2 pathlib2-2.3.5 scandir-1.10.0 six-1.14.0 typing-3.7.4.1 virtualenv-20.0.5 zipp-1.2.0

 2020-02-24 08:32:47.066 | dib-run-parts 10-debian-networking completed
 2020-02-24 08:32:47.066 | dib-run-parts Running /tmp/in_target.d/install.d/10-os-apply-config
 2020-02-24 08:32:47.073 | ++ get-pip-manifest os-apply-config
 2020-02-24 08:32:47.076 | + name=os-apply-config
 2020-02-24 08:32:47.076 | + build_manifest=/etc/dib-manifests/dib-manifests-pip/dib-pip-build-manifest-os_apply_config
 2020-02-24 08:32:47.076 | + [[ -f /etc/dib-manifests/dib-manifests-pip/dib-pip-build-manifest-os_apply_config ]]
 2020-02-24 08:32:47.076 | + manifest=
 2020-02-24 08:32:47.077 | + virtualenv --setuptools /opt/stack/venvs/os-apply-config
 2020-02-24 08:32:47.187 | usage: virtualenv [--version] [--with-traceback] [-v | -q] [--discovery {builtin}] [-p py] [--creator {builtin,cpython2-posix}] [--seeder {app-data,pip}] [--no-seed] [--activators comma_separated_list] [--clear] [--system-site-packages]
 2020-02-24 08:32:47.187 | [--symlinks | --copies] [--download | --no-download] [--extra-search-dir d [d ...]] [--pip version] [--setuptools version] [--wheel version] [--no-pip] [--no-setuptools] [--no-wheel] [--clear-app-data] [--symlink-app-data]
 2020-02-24 08:32:47.187 | [--prompt prompt] [-h]
 2020-02-24 08:32:47.187 | dest
 2020-02-24 08:32:47.187 | virtualenv: error: too few arguments