The cloudbuild service operates some other services on your behalf, and their relevant charges apply.
This most notably includes Cloud Storage (GCR is backed by Cloud Storage). If you use 'gcloud container builds submit' to kick off a build, Cloud Storage is used to get the source in as well.
This most notably includes Cloud Storage (GCR is backed by Cloud Storage). If you use 'gcloud container builds submit' to kick off a build, Cloud Storage is used to get the source in as well.