Seems like there is a regression between 1.136 and 1.143 where when build
aborted on a slave the build process is not destroyed.

I tried with plain clean installation one slave. The whole job is "sleep 1000"
so I manually check with ps to see which processes are running. After the abort
the initial bash process continues to run.
Seems like sometimes (rarely) the process does get destroyed (at least on master).

Anyway process always got destroyed with 1.136.