Seems like this is the same as https://bugs.python.org/issue30156. 

Relevant commit : https://github.com/python/cpython/commit/7822f151b68e40376af657d267ff774439d9adb9 . 
Comment on the commit : https://github.com/python/cpython/commit/7822f151b68e40376af657d267ff774439d9adb9#commitcomment-21880815

Python 3.5.1 works fine but Python 3.5.2rc1 will crash.

# Python 3.5.2rc1 crash

$ git checkout v3.5.2rc1 && git clean -xdf && time ./configure --with-pydebug && make -s -j4 && PYTHONDUMPREFS=1 ./python -c pass
(...)
0x7f8915f0b258 [1] <slot wrapper '__getattribute__' of '_thread._local' objects>
0x7f8915f0d3d8 [1] {'__setattr__': <slot wrapper '__setattr__' of '_thread._local' objects>, '__doc__': 'Thread-local data', '__delattr__': <slot wrapper '__delattr__' of '_thread._local' objects>, '__getattribute__': <slot wrapper '__getattribute__' of '_thread._local' objects>, '__new__': <built-in method __new__ of type object at 0x8ad8e0>}
0x7f8915f09260 [1] (<class 'object'>,)
0x8ad8e0 [6] <class '_thread._local'>
0x7f8915f0b1d8 [1] <weakref at 0x7f8915f0b1d8; to 'type' at 0x8ada80 (_localdummy)>
0x7f8915f05270 [1] 9099904
0x7f8915f00298 [1] 'Thread-local dummy'
0x7f8915f06d78 [1] (<class '_thread._localdummy'>, <class 'object'>)
0x7f8915f0d368 [1] {'__doc__': 'Thread-local dummy'}
0x7f8915f091f8 [1] (<class 'object'>,)
0x8ada80 [2] <class '_thread._localdummy'>
0x7f8915f0d218 [1] {'_filters_mutated': None, 'warn': None, 'warn_explicit': None, '__spec__': None, '_defaultaction': None, '__loader__': None, 'filters': None, '__package__': None, '__doc__': None, '_onceregistry': None, '__name__': None}
0x7f8915f0b158 [1]
0x7f8915f0d190 [1] '_warnings'
0x7f8915f65e28 [1] [1]    8258 segmentation fault (core dumped)  PYTHONDUMPREFS=1 ./python -c pass


# Python 3.5.1 works fine

$ git checkout v3.5.1 && git clean -xdf && time ./configure --with-pydebug && make -s -j4 && PYTHONDUMPREFS=1 ./python -c pass
(...)
0x7f60ba2e51e0 [58] str
0x7f60ba2e5178 [67] str
0x7f60ba2e5110 [58] str
0x7f60ba2e50a8 [58] str
0x7f60ba2e5040 [38] str
0x7f60ba2e3350 [22] str
0x7f60ba2e32e0 [51] str
0x7f60ba2e3270 [156] str
0x7f60ba2e3200 [22] str
0x7f60ba2e3190 [22] str
0x7f60ba2e3120 [6] str
0x7f60ba2e30c8 [1] dict
0x7f60ba2e4040 [142] str
0x7f60ba2e3058 [1] dict
0x7f60ba2e2058 [352] tuple
0x8986e0 [423] type


Thanks