running pytest
/usr/lib/python3.10/site-packages/setuptools/command/easy_install.py:156: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
/usr/lib/python3.10/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
Searching for colorlog<7.0.0,>=2.6.1
Reading https://pypi.org/simple/colorlog/
/usr/lib/python3.10/site-packages/pkg_resources/__init__.py:116: PkgResourcesDeprecationWarning:  is an invalid version and will not be supported in a future release
  warnings.warn(
/usr/lib/python3.10/site-packages/pkg_resources/__init__.py:116: PkgResourcesDeprecationWarning: 4.2.0.linux-x86-64 is an invalid version and will not be supported in a future release
  warnings.warn(
/usr/lib/python3.10/site-packages/pkg_resources/__init__.py:116: PkgResourcesDeprecationWarning: x86-64 is an invalid version and will not be supported in a future release
  warnings.warn(
Downloading https://files.pythonhosted.org/packages/7d/54/e24efe5469ecb2710112055de87a2900e9494810bcfc25c12c7a0723eb64/colorlog-6.6.0-py2.py3-none-any.whl#sha256=351c51e866c86c3217f08e4b067a7974a678be78f07f85fc2d55b8babde6d94e
Best match: colorlog 6.6.0
Processing colorlog-6.6.0-py2.py3-none-any.whl
Installing colorlog-6.6.0-py2.py3-none-any.whl to /build/python-nox/src/nox-2021.6.12/.eggs

Installed /build/python-nox/src/nox-2021.6.12/.eggs/colorlog-6.6.0-py3.10.egg
running egg_info
writing nox.egg-info/PKG-INFO
writing dependency_links to nox.egg-info/dependency_links.txt
writing entry points to nox.egg-info/entry_points.txt
writing requirements to nox.egg-info/requires.txt
writing top-level names to nox.egg-info/top_level.txt
reading manifest file 'nox.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
adding license file 'LICENSE'
writing manifest file 'nox.egg-info/SOURCES.txt'
running build_ext
============================= test session starts ==============================
platform linux -- Python 3.10.1, pytest-6.2.5, py-1.11.0, pluggy-0.13.1
rootdir: /build/python-nox/src/nox-2021.6.12
collected 299 items / 1 error / 298 selected

==================================== ERRORS ====================================
__________________ ERROR collecting tests/test_tox_to_nox.py ___________________
ImportError while importing test module '/build/python-nox/src/nox-2021.6.12/tests/test_tox_to_nox.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.10/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/test_tox_to_nox.py:20: in <module>
    from nox import tox_to_nox
nox/tox_to_nox.py:23: in <module>
    import tox.config
E   ModuleNotFoundError: No module named 'tox'
=========================== short test summary info ============================
ERROR tests/test_tox_to_nox.py
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
=============================== 1 error in 3.37s ===============================
==> ERROR: A failure occurred in check().
    Aborting...