autotest: print stack traces when exceptions caught

Tools/autotest/ardusub.py

@@ -267,7 +267,8 @@ class AutoTestSub(AutoTest):
             self.mavproxy.expect("Gripper Grabbed")
             self.mavproxy.expect("Gripper Released")
         except Exception as e:
-            self.progress("Exception caught")
+            self.progress("Exception caught: %s" % (
+                self.get_exception_stacktrace(e)))
             ex = e
         if ex is not None:
             raise ex

Tools/autotest/rover.py

@@ -618,7 +618,8 @@ Brakes have negligible effect (with=%0.2fm without=%0.2fm delta=%0.2fm)
             self.set_rc(8, 1700) # PWM for mode5
             self.wait_mode("ACRO")
         except Exception as e:
-            self.progress("Exception caught")
+            self.progress("Exception caught: %s" % (
+                self.get_exception_stacktrace(e)))
             ex = e
 
         self.context_pop()
@@ -659,7 +660,8 @@ Brakes have negligible effect (with=%0.2fm without=%0.2fm delta=%0.2fm)
             self.wait_mode("ACRO")
             self.set_rc(9, 1000)
         except Exception as e:
-            self.progress("Exception caught")
+            self.progress("Exception caught: %s" % (
+                self.get_exception_stacktrace(e)))
             ex = e
 
         self.context_pop()
@@ -1065,7 +1067,8 @@ Brakes have negligible effect (with=%0.2fm without=%0.2fm delta=%0.2fm)
             self.wait_rc_channel_value(3, normal_rc_throttle, timeout=10)
 
         except Exception as e:
-            self.progress("Exception caught")
+            self.progress("Exception caught: %s" % (
+                self.get_exception_stacktrace(e)))
             ex = e
 
         self.context_pop()
@@ -1115,7 +1118,8 @@ Brakes have negligible effect (with=%0.2fm without=%0.2fm delta=%0.2fm)
 
             self.disarm_vehicle()
         except Exception as e:
-            self.progress("Exception caught")
+            self.progress("Exception caught: %s" % (
+                self.get_exception_stacktrace(e)))
             ex = e
         self.context_pop()
         if ex is not None:
@@ -1175,7 +1179,8 @@ Brakes have negligible effect (with=%0.2fm without=%0.2fm delta=%0.2fm)
                 raise comp_arm_exception
 
         except Exception as e:
-            self.progress("Exception caught")
+            self.progress("Exception caught: %s" % (
+                self.get_exception_stacktrace(e)))
             ex = e
         self.context_pop()
         if ex is not None: