Auto-update dependencies (#588)

Produced via:
  `dep ensure -update knative.dev/test-infra`
/assign mattmoor

Gopkg.lock

@@ -1199,14 +1199,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:39bb1014c454fbf9d8f4eab62a44fcf8d3ade774e2b42015e533e5d9f3fe23d9"
+  digest = "1:305af75fc194c059ae710a75276ca8f1870c959214b18ed33f7ef8671995947f"
   name = "knative.dev/test-infra"
   packages = [
     "scripts",
     "tools/dep-collector",
   ]
   pruneopts = "UT"
-  revision = "d65201fadb82dbdc5713f9ba9a1313150c7aa9b5"
+  revision = "f3fe0bcc30693df8e3c9616358b16045efb9ed10"
 
 [[projects]]
   digest = "1:8730e0150dfb2b7e173890c8b9868e7a273082ef8e39f4940e3506a481cf895c"

vendor/knative.dev/test-infra/scripts/e2e-tests.sh

@@ -288,10 +288,14 @@ function create_test_cluster_with_retries() {
       [[ "$(get_test_return_code)" == "0" ]] && return 0
       # Retry if cluster creation failed because of:
       # - stockout (https://github.com/knative/test-infra/issues/592)
-      # - latest GKE not available in this region/zone yet (https://github.com/knative/test-infra/issues/694)
+      # - latest GKE not available in this region/zone yet
+      #   (https://github.com/knative/test-infra/issues/694)
+      # - cluster created but some nodes are unhealthy
+      #   (https://github.com/knative/test-infra/issues/1291)
       [[ -z "$(grep -Fo 'does not have enough resources available to fulfill' ${cluster_creation_log})" \
           && -z "$(grep -Fo 'ResponseError: code=400, message=No valid versions with the prefix' ${cluster_creation_log})" \
           && -z "$(grep -Po 'ResponseError: code=400, message=Master version "[0-9a-z\-\.]+" is unsupported' ${cluster_creation_log})" ]] \
+          && -z "$(grep -Po '[0-9]+ nodes out of [0-9]+ are unhealthy' ${cluster_creation_log})" ]] \
           && return 1
     done
   done