v1.9.0-beta.1 about sig-release

[spiffxp]

@enisoc is there a log of which jobs were skipped while cutting this release? I'm assuming it was:

• gce-scale-correctness
• gce-scale-performance

[enisoc]

Here's the find_green_build output for the cut point:

* build-1.9                               #6      #713    [11:13 11/29]
* (--buildversion=v1.9.0-beta.0.713+5898890a735c4e)
- verify-release-1.9                      No Good Runs    SKIPPING
- test-go-release-1.9                     #2952   #713    PASSED
- bazel-build-1-9                         #202    #711    PASSED
- bazel-test-1-9                          --      --      FAILED
- periodic-kubernetes-bazel-build-1-9     #138    #713    PASSED
- periodic-kubernetes-bazel-test-1-9      #139    #713    PASSED
- e2e-kubeadm-gce-1-8-on-1-9              No Good Runs    SKIPPING
- periodic-kubernetes-e2e-kubeadm-gce-1-9 --      --      FAILED
- e2e-gce-cos-k8sbeta-default             #307    #713    PASSED
- e2e-gce-cos-k8sbeta-reboot              #308    #713    PASSED
- e2e-gce-cos-k8sbeta-serial              #64     #713    PASSED
- e2e-gce-cos-k8sbeta-slow                #306    #713    PASSED
- e2e-gce-cos-k8sbeta-ingress             #306    #713    PASSED
- e2e-gce-cos-k8sbeta-alphafeatures       #309    #713    PASSED
- e2e-gke-cos-k8sbeta-default             #319    #713    PASSED
- e2e-gke-cos-k8sbeta-reboot              #289    #713    PASSED
- e2e-gke-cos-k8sbeta-serial              #68     #713    PASSED
- e2e-gke-cos-k8sbeta-slow                #308    #713    PASSED
- e2e-gke-cos-k8sbeta-ingress             #320    #713    PASSED
- e2e-gce-gpu-beta                        #118    #713    PASSED
- e2e-gce-device-plugin-gpu-beta          #122    #713    PASSED
- e2e-gke-device-plugin-gpu-beta          #121    #713    PASSED
- e2e-gke-device-plugin-gpu-p100-beta     #20     #713    PASSED
- e2e-kops-aws-beta                       #212    #713    PASSED
- node-kubelet-beta                       #192    #713    PASSED
- e2e-gci-gce-scalability-beta            #34     #713    PASSED

• verify was actually passing except for kubernetes/release#470.
• bazel-test was actually passing but looking at the wrong branch: kubernetes/test-infra#5727.
• periodic-*-kubeadm-gce-1-9 seems to have a similar problem: kubernetes/test-infra#5769
• kubeadm-gce-1-8-on-1-9 was broken due to a test-infra misconfig: kubernetes/kubernetes#56594.