logging not captured

test_5.py file content

import logging
logger = logging.getLogger(__file__)

def test_1():
    logger.info('123123')

def test_2():
    logger.info('123123')

def test_3():
    logger.info('123123')

def test_4():
    logger.info('123123')

pytest.ini

[pytest]
log_cli=true
log_cli_level=DEBUG
log_format = %(asctime)s %(levelname)s (%(threadName)-10s) %(filename)s:%(lineno)d %(message)s
log_date_format = %Y-%m-%d %H:%M:%S

run pytest test/test_5 -n auto

logs:

================================================================= test session starts =================================================================
platform darwin -- Python 3.6.5, pytest-4.1.1, py-1.7.0, pluggy-0.8.1 -- /Users/w/.virtualenvs/pytest_xdist_fixture_scope_test/bin/python
cachedir: .pytest_cache
rootdir: /Users/w/pytest_xdist_fixture_scope_test, inifile: pytest.ini
plugins: xdist-1.26.0, forked-1.0.1
[gw0] darwin Python 3.6.5 cwd: /Users/w/pytest_xdist_fixture_scope_test
[gw1] darwin Python 3.6.5 cwd: /Users/w/pytest_xdist_fixture_scope_test
[gw2] darwin Python 3.6.5 cwd: /Users/wpytest_xdist_fixture_scope_test
[gw3] darwin Python 3.6.5 cwd: /Users/wpytest_xdist_fixture_scope_test
[gw0] Python 3.6.5 (default, Apr 25 2018, 14:23:58)  -- [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)]
[gw1] Python 3.6.5 (default, Apr 25 2018, 14:23:58)  -- [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)]
[gw2] Python 3.6.5 (default, Apr 25 2018, 14:23:58)  -- [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)]
[gw3] Python 3.6.5 (default, Apr 25 2018, 14:23:58)  -- [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)]
gw0 [4] / gw1 [4] / gw2 [4] / gw3 [4]
scheduling tests via LoadScheduling

test/test_5.py::test_1
test/test_5.py::test_2
[gw0] [ 25%] PASSED test/test_5.py::test_1
test/test_5.py::test_3
[gw1] [ 50%] PASSED test/test_5.py::test_2
[gw2] [ 75%] PASSED test/test_5.py::test_3
test/test_5.py::test_4
[gw3] [100%] PASSED test/test_5.py::test_4

============================================================== 4 passed in 1.47 seconds ===============================================================

There are no logs print out.
I saw #256 , but it doesn't help

Start with the test_5.py reproduction and pytest.ini logging settings, then run pytest test/test_5 -n auto with the reported pytest-xdist setup. Compare the output with non-parallel execution and review issue #256; done means the four logger.info messages are captured or the issue clearly documents the supported behavior and limitation.