Muliple hg clones, workspace clearing, verbose mode?

We keep our source and build scripts in separate repos.

I am trying:

workspace:
base: /source
path: code

clone:
build:
image: plugins/hg
path: bitbucket.org/kgk/builds
main:
image: plugins/hg
path: bitbucket.org/kgk/main-source

pipeline:

While the first clone succeeds the second is not run.
Also is there a way to clear the workspace… I tried reversing the order of the clones and noticed
that the first run is always is is in the workspace (subsequent runs do not wipe out the workspace).

Finally is there a way to see ALL drone actions (workpace creation, cloning etc) when executing locally?

Thanks,
K