Note: cAdvisor only builds on Linux since it uses Linux-only APIs.
You should be able to go get cAdvisor as expected (we use -d to only download):
$ go get -d github.com/google/cadvisor
We use godep so you will need to get that as well:
$ go get github.com/tools/godep
At this point you can build cAdvisor:
$ godep go build github.com/google/cadvisor
or run unit tests:
$ godep go test github.com/google/cadvisor/...