What i can do when buildbot fail during buildstep

Question

all. When buildstep fail, Can i get trigged and write script to do something, send email or try catch for that. :)

Answer 1

You can use the mail notifier or the irc bot to report on the success or failure of builds.

There is a particularly direct way to do that for particular build steps, but I suspect that the above are sufficient. In any case, they will be able to include information about what steps failed.