Initial builds on 10.15 buildbot worker

[Ryan Schmidt]

Hi Josh,

I noticed you forced some builds on the 10.15 builder. Note that I have a list of all ports that I have been working my way through in a somewhat random order ever since I set the builder up, building a couple hundred or so ports at a time, whenever the builder is not busy. I currently have about 7400 ports left on the list, though many of these have already been built as dependencies. I haven't been watching the buildbot this weekend but otherwise I try to. I can continue with this on Tuesday, removing the list of ports you put in from my list... unless you'd like to handle it differently; let me know.

\r