[experiment] Log algorithm errors if any on load

beat/core/experiment.py

@@ -380,8 +380,8 @@ class Experiment(object):
 
                 self.algorithms[algoname] = thisalgo
                 if thisalgo.errors:
-                    self.errors.append("/analyzers/%s: algorithm `%s' is invalid" % \
-                            (analyzername, algoname))
+                    self.errors.append("/analyzers/%s: algorithm `%s' is invalid:\n%s" % \
+                            (analyzername, algoname, "\n".join(thisalgo.errors)))
                     continue
 
             else: