Sane timeouts for builds


I’ve recently had to manually cancel a build
It would make sense to add a build timeout (like for example one hour) that could be overridden through the snapcraft.yaml file

Build Cancelation request: #677626

Please file a bug against Launchpad itself for this instead (it’s not something that would handle directly).



For anyone reading this: Please visit the bug and select that it effects you, if you also need this feature added