test_push.py::test_nested_pushclone_cycle_allplatforms fails some times

[yarikoptic]

in cron jobs happens only in a single matrix run

$> datalad foreach-dataset "git grep 'FAILED .*test_nested_pushclone_cycle_allplatforms'  | grep cron || :"            
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022 (dataset)
03/cron/20220603T193647/173dc6f/travis-14100-failed/14.txt:FAILED ../core/distributed/tests/test_push.py::test_nested_pushclone_cycle_allplatforms
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/01 (dataset)
10/cron/20220610T193717/029f839/travis-14136-failed/14.txt:FAILED ../core/distributed/tests/test_push.py::test_nested_pushclone_cycle_allplatforms
20/cron/20220520T193556/84f979a/travis-14036-failed/14.txt:FAILED ../core/distributed/tests/test_push.py::test_nested_pushclone_cycle_allplatforms
27/cron/20220527T193600/310fd9f/travis-14055-failed/14.txt:FAILED ../core/distributed/tests/test_push.py::test_nested_pushclone_cycle_allplatforms
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/06 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/05 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/04 (dataset)
15/cron/20220715T194006/52e822a/travis-14276-failed/14.txt:FAILED ../core/distributed/tests/test_push.py::test_nested_pushclone_cycle_allplatforms
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/07 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/03 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/02 (dataset)

and recent case https://app.travis-ci.com/github/datalad/datalad/jobs/576842696#L3269 . That is the matrix run which uses PYTEST_WRAPPER="sudo -E" DATALAD_TESTS_SSH=0