Running:

mkdir ~/buildbot
cp master/master.go ~/buildbot/
cd ~/builbot
go build -o master master.go
./master -verbose -builderopts -verbose=true

Hacking:

mkdir ~/buildbot
cp master/master.go ~/buildbot/
cp builder/builder.go ~/buildbot/
cd ~/builbot
go build -o master master.go
#hack on builder.go
./master -verbose -buildersrc ./builder.go -builderopts -verbose=true,-skipgo1build=true,-faketests=true