WARNING: You are using pip version 20.0.2; however, version 20.3.4 is available. You should consider upgrading via the '/builds/cubicweb/cubes/email/.tox/py27/bin/python -m pip install --upgrade pip' command.
=================================== log end ==================================== ERROR: could not install deps [-rrequirements-test.txt]; v = InvocationError(u'/builds/cubicweb/cubes/email/.tox/py27/bin/python -m pip install -rrequirements-test.txt', 1) ___________________________________ summary ____________________________________ ERROR: py27: could not install deps [-rrequirements-test.txt]; v = InvocationError(u'/builds/cubicweb/cubes/email/.tox/py27/bin/python -m pip install -rrequirements-test.txt', 1) Cleaning up file based variables ERROR: Job failed: command terminated with exit code 1