destructors of local variables are not traced

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-05-08.18:29:15.715>
labels = ['interpreter-core', '3.8', 'type-bug', 'library', '3.7']
title = 'destructors of local variables are not traced'
updated_at = <Date 2018-05-08.19:00:03.664>
user = 'https://github.com/xdegaye'

bugs.python.org fields:

activity = <Date 2018-05-08.19:00:03.664>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core', 'Library (Lib)']
creation = <Date 2018-05-08.18:29:15.715>
creator = 'xdegaye'
dependencies = []
files = []
hgrepos = []
issue_num = 33446
keywords = ['patch']
message_count = 2.0
messages = ['316290', '316292']
nosy_count = 2.0
nosy_names = ['xdegaye', 'serhiy.storchaka']
pr_nums = ['6730']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue33446'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8']