shutil.rmtree will frequently fail on Windows under heavy load due to racy deletion

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-04-01.22:15:23.057>
labels = ['3.9', 'OS-windows']
title = 'shutil.rmtree will frequently fail on Windows under heavy load due to racy deletion'
updated_at = <Date 2020-04-03.13:09:32.817>
user = 'https://github.com/ariccio'

bugs.python.org fields:

activity = <Date 2020-04-03.13:09:32.817>
actor = 'eryksun'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Windows']
creation = <Date 2020-04-01.22:15:23.057>
creator = 'Alexander Riccio'
dependencies = []
files = []
hgrepos = []
issue_num = 40143
keywords = []
message_count = 3.0
messages = ['365520', '365686', '365697']
nosy_count = 6.0
nosy_names = ['paul.moore', 'tim.golden', 'zach.ware', 'eryksun', 'steve.dower', 'Alexander Riccio']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue40143'
versions = ['Python 3.9']