Non-privileged users can't cancel non-dist builds

[brson]

We recently added a privileged user for building 'dist' builds. After that patch though non-privileged users can no longer cancel non-dist builds.

cc @bheesham @alexcrichton

[bheesham]

Ah, I think I know what's up here.

On line 1619 of master.cfg, stopBuild provides a BuildStatus object and not a BuilderStatus, which is what the userAuth callback expects. So it's probably running into an AttributeError?

Calling the getBuilder() function on the object should give us what we're looking for.

[alexcrichton]

non-dist builds are no longer a thing, so closing.