logging: Log successful test bucket creation

Change-Id: Ie88fad6ff4295a86c9402358892a71f9faf5beb0
Reviewed-on: https://code-review.googlesource.com/c/35410
Reviewed-by: Jean de Klerk <deklerk@google.com>
Reviewed-by: kokoro <noreply+kokoro@google.com>
diff --git a/logging/logadmin/sinks_test.go b/logging/logadmin/sinks_test.go
index 49f6532..4bbbe72 100644
--- a/logging/logadmin/sinks_test.go
+++ b/logging/logadmin/sinks_test.go
@@ -60,6 +60,7 @@
 		if err := bucket.Create(ctx, testProjectID, nil); err != nil {
 			log.Fatalf("creating storage bucket %q: %v", testBucket, err)
 		}
+		log.Printf("successfully created bucket %s", testBucket)
 		if err := bucket.ACL().Set(ctx, "group-cloud-logs@google.com", storage.RoleOwner); err != nil {
 			log.Fatalf("setting owner role: %v", err)
 		}