in cases like this: https://evergreen.mongodb.com/task/mongodb_mongo_v4.0_enterprise_rhel_70_64_bit_push_5f93fc9db3a3475dd2c7543b9f1e1179e6f9065f_19_06_14_13_51_46 notary client errors obscured a different issue in evergreen.

this is a one line change (adding type: "test" on line 2437, the hard part is figuring what kind of error (test=red or setup=lavender) we want this to be. I think it shouldn't be a system failure, as this will probably make it harder to diagnose other issues.