$ sudo snap try ~/canonical/snappy/src/github.com/snapcore/snapd/tests/lib/snaps/test-snapd-python-webserver/prime/
error: cannot perform the following tasks:
- Setup snap "test-snapd-python-webserver" (unset) security profiles (cannot setup mount for snap "core": cannot update mount namespace of snap "core": cannot update preserved namespace of snap "core": cannot update snap namespace: not implemented)
- Setup snap "test-snapd-python-webserver" (unset) security profiles (cannot update mount namespace of snap "core": cannot update preserved namespace of snap "core": cannot update snap namespace: not implemented)