don't crash when plugin backends do

backend/plugin.py

@@ -5,6 +5,8 @@ from asyncio import (Lock, get_event_loop, new_event_loop,
 from concurrent.futures import ProcessPoolExecutor
 from importlib.util import module_from_spec, spec_from_file_location
 from json import dumps, load, loads
+from logging import getLogger
+from traceback import format_exc
 from os import path, setgid, setuid
 from signal import SIGINT, signal
 from sys import exit
@@ -40,12 +42,15 @@ class PluginWrapper:
         self.author = json["author"]
         self.flags = json["flags"]
 
+        self.log = getLogger("plugin")
+
         self.passive = not path.isfile(self.file)
 
     def __str__(self) -> str:
         return self.name
 
     def _init(self):
+        try:
             signal(SIGINT, lambda s, f: exit(0))
 
             set_event_loop(new_event_loop())
@@ -62,6 +67,9 @@ class PluginWrapper:
                 get_event_loop().create_task(self.Plugin._main(self.Plugin))
             get_event_loop().create_task(self._setup_socket())
             get_event_loop().run_forever()
+        except:
+            self.log.error("Failed to start " + self.name + "!\n" + format_exc())
+            exit(0)
 
     async def _setup_socket(self):
         self.socket = await start_unix_server(self._listen_for_method_call, path=self.socket_addr, limit=BUFFER_LIMIT)