catch all exceptions in testing script

selfdrive/test/eon_testing_slave.py

@@ -2,7 +2,6 @@
 import re
 import time
 import json
-import base64
 import requests
 import subprocess
 from common.timeout import Timeout
@@ -40,7 +39,7 @@ def heartbeat():
   }
 
   while True:
-
+    try:
       with open(os.path.join(work_dir, "selfdrive", "common", "version.h")) as _versionf:
         version = _versionf.read().split('"')[1]
 
@@ -63,12 +62,10 @@ def heartbeat():
         # 'screenshot': screenshot,
         'tmux': tmux,
       }
-
-    try:
       with Timeout(10):
         requests.post('http://%s/eon/heartbeat/' % MASTER_HOST, json=msg, timeout=5.0)
-    except:
-      print("Unable to reach master")
+    except Exception as e:
+      print("Unable to send heartbeat", e)
 
     time.sleep(5)