Cloud Build and Cloud RBE are two different products. The former is Google Cloud's CI service (https://cloud.google.com/cloud-build/ https://cloud.google.com/cl

Cloud Build and Cloud RBE are two different products. The former is Google Cloud's CI service (https://cloud.google.com/cloud-build/ https://cloud.google.com/cloud-build/), while the latter is a hosted backend for Bazel's remote execution feature (some infos are here: https://groups.google.com/forum/#!forum/rbe-alpha-customers https://groups.google.com/forum/#!forum/rbe-alpha-customers). They are not related. Disclaimer: I work on the Bazel team at Google.