Upgrading to pytest:6.0.0 version is causing internal error .

[pranav165]

After upgrading pytest to 6.0.0 from 5.4.3 , tests are failing causing the following error. I believe it occurs whenever a test marked as skipped is encountered.
We are running tests in parallel using pytest-xdist package. Reverting just pytest version to 5.4.3 solves the below error

INTERNALERROR> Traceback (most recent call last):
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/_pytest/main.py", line 240, in wrap_session
[14:00:43]INTERNALERROR> session.exitstatus = doit(config, session) or 0
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/_pytest/main.py", line 296, in _main
[14:00:43]INTERNALERROR> config.hook.pytest_runtestloop(session=session)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/hooks.py", line 286, in call
[14:00:43]INTERNALERROR> return self._hookexec(self, self.get_hookimpls(), kwargs)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/manager.py", line 93, in _hookexec
[14:00:43]INTERNALERROR> return self._inner_hookexec(hook, methods, kwargs)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/manager.py", line 87, in
[14:00:43]INTERNALERROR> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/callers.py", line 208, in _multicall
[14:00:43]INTERNALERROR> return outcome.get_result()
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
[14:00:43]INTERNALERROR> raise ex[1].with_traceback(ex[2])
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
[14:00:43]INTERNALERROR> res = hook_impl.function(*args)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/xdist/dsession.py", line 112, in pytest_runtestloop
[14:00:43]INTERNALERROR> self.loop_once()
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/xdist/dsession.py", line 135, in loop_once
[14:00:43]INTERNALERROR> call(**kwargs)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/xdist/dsession.py", line 254, in worker_testreport
[14:00:43]INTERNALERROR> self.config.hook.pytest_runtest_logreport(report=rep)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/hooks.py", line 286, in call
[14:00:43]INTERNALERROR> return self._hookexec(self, self.get_hookimpls(), kwargs)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/manager.py", line 93, in _hookexec
[14:00:43]INTERNALERROR> return self._inner_hookexec(hook, methods, kwargs)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/manager.py", line 87, in
[14:00:43]INTERNALERROR> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/callers.py", line 208, in _multicall
[14:00:43]INTERNALERROR> return outcome.get_result()
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
[14:00:43]INTERNALERROR> raise ex[1].with_traceback(ex[2])
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
[14:00:43]INTERNALERROR> res = hook_impl.function(*args)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pytest_html/plugin.py", line 602, in pytest_runtest_logreport
[14:00:43]INTERNALERROR> self.append_skipped(report)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pytest_html/plugin.py", line 380, in append_skipped
[14:00:43]INTERNALERROR> self._appendrow("Skipped", report)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pytest_html/plugin.py", line 340, in _appendrow
[14:00:43]INTERNALERROR> result = self.TestResult(outcome, report, self.logfile, self.config)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pytest_html/plugin.py", line 157, in init
[14:00:43]INTERNALERROR> self.append_log_html(report, self.additional_html)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/pytest_html/plugin.py", line 266, in append_log_html
[14:00:43]INTERNALERROR> for line in report.longreprtext.splitlines():
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/_pytest/reports.py", line 105, in longreprtext
[14:00:43]INTERNALERROR> self.toterminal(tw)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/_pytest/reports.py", line 85, in toterminal
[14:00:43]INTERNALERROR> out.line(longrepr)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/_pytest/_io/terminalwriter.py", line 168, in line
[14:00:43]INTERNALERROR> self.write(s, **markup)
[14:00:43]INTERNALERROR> File "/home/e2e/venv/lib/python3.7/site-packages/_pytest/_io/terminalwriter.py", line 144, in write
[14:00:43]INTERNALERROR> current_line = msg.rsplit("\n", 1)[-1]
[14:00:43]INTERNALERROR> AttributeError: 'tuple' object has no attribute 'rsplit'

Installed packages:
metadata: {'Python': '3.7.3', 'Platform': 'Linux-3.10.0-862.14.4.el7.x86_64-x86_64-with-debian-10.4', 'Packages': {'pytest': '6.0.0', 'py': '1.9.0', 'pluggy': '0.13.1'}, 'Plugins': {'forked': '1.3.0', 'html': '2.1.1', 'metadata': '1.10.0', 'repeat': '0.8.0', 'rerunfailures': '9.0', 'xdist': '1.34.0'},
[13:57:08]rootdir: /home/e2e, configfile: pytest.ini
[13:57:08]plugins: forked-1.3.0, html-2.1.1, metadata-1.10.0, repeat-0.8.0, rerunfailures-9.0, xdist-1.34.0

[bluetech]

This is a duplicate of #7559, will be fixed in 6.0.1 which should be released soon.