<<< packages_pkgcheck_scan >>> DistutilsNonPEP517Build: version 0.8.0: uses deprecated non-PEP517 build mode, please switch to DISTUTILS_USE_PEP517=... <<< open bugs >>> https://bugs.gentoo.org/897766 net-mail/b4-0.12.1_fails_tests:_TypeError:_chdir:_path_should_be_string,_bytes,_os.PathLike_or_integer,_not_NoneType