beta.1 crashes after ctrl-d after exception in REPL #2378
Description
Same result on CPB, so it's not port-specific:
$ repl
Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
Press any key to enter the REPL. Use CTRL-D to reload.
Adafruit CircuitPython 5.0.0-beta.1 on 2019-12-10; Adafruit Metro M4 Express with samd51j19
>>> [ctrl-d]
soft reboot
Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
Press any key to enter the REPL. Use CTRL-D to reload.
Adafruit CircuitPython 5.0.0-beta.1 on 2019-12-10; Adafruit Metro M4 Express with samd51j19
>>> asdf
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'asdf' is not defined
>>> [ctrl-d]
FATAL: read zero bytes from port
term_exitfunc: reset failed for dev UNKNOWN: Input/output error