unhandled_promise_trace_warnings.out

(node:*) UnhandledPromiseRejectionWarning: Error: This was rejected
    at * (*test*message*unhandled_promise_trace_warnings.js:*)
    at *
    at *
    at *
    at *
    at *
    at *
    at *
    at *
    at *
(node:*) Error: This was rejected
    at * (*test*message*unhandled_promise_trace_warnings.js:*)
    at *
    at *
    at *
    at *
    at *
    at *
(node:*) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
    at *
    at *
    at *
(node:*) PromiseRejectionHandledWarning: Promise rejection was handled asynchronously (rejection id: 1)
    at handledRejection (internal/process/promises.js:*)
    at promiseRejectHandler (internal/process/promises.js:*)
    at Promise.then *
    at Promise.catch *
    at Immediate.<anonymous> (*test*message*unhandled_promise_trace_warnings.js:*)
    at *