NetworkingError: Can't set headers after they are sent.
    at ClientRequest.setHeader (_http_outgoing.js:371:11)
    at Object.requestTrace [as request] (/data/node_modules/@google-cloud/trace-agent/build/src/plugins/plugin-http.js:124:13)
    at Object.request (https.js:206:15)
    at features.constructor.handleRequest (/data/node_modules/aws-sdk/lib/http/node.js:42:23)
    at executeSend (/data/node_modules/aws-sdk/lib/event_listeners.js:304:29)
    at Request.SEND (/data/node_modules/aws-sdk/lib/event_listeners.js:318:9)
    at Request.callListeners (/data/node_modules/aws-sdk/lib/sequential_executor.js:101:18)
    at Request.emit (/data/node_modules/aws-sdk/lib/sequential_executor.js:77:10)
    at Request.emit (/data/node_modules/aws-sdk/lib/request.js:683:14)
    at Request.transition (/data/node_modules/aws-sdk/lib/request.js:22:10)
    at AcceptorStateMachine.runTo (/data/node_modules/aws-sdk/lib/state_machine.js:14:12)
    at /data/node_modules/aws-sdk/lib/state_machine.js:26:10
    at Request.<anonymous> (/data/node_modules/aws-sdk/lib/request.js:38:9)
    at Request.<anonymous> (/data/node_modules/aws-sdk/lib/request.js:685:12)
    at Request.callListeners (/data/node_modules/aws-sdk/lib/sequential_executor.js:115:18)
    at callNextListener (/data/node_modules/aws-sdk/lib/sequential_executor.js:95:12)
    at /data/node_modules/aws-sdk/lib/event_listeners.js:220:9
    at finish (/data/node_modules/aws-sdk/lib/config.js:320:7)
    at /data/node_modules/aws-sdk/lib/config.js:338:9
    at Credentials.get (/data/node_modules/aws-sdk/lib/credentials.js:126:7)
    at getAsyncCredentials (/data/node_modules/aws-sdk/lib/config.js:332:24)
    at Config.getCredentials (/data/node_modules/aws-sdk/lib/config.js:352:9)
    at Request.SIGN (/data/node_modules/aws-sdk/lib/event_listeners.js:192:22)
    at Request.callListeners (/data/node_modules/aws-sdk/lib/sequential_executor.js:101:18)
    at Request.emit (/data/node_modules/aws-sdk/lib/sequential_executor.js:77:10)
    at Request.emit (/data/node_modules/aws-sdk/lib/request.js:683:14)
    at Request.transition (/data/node_modules/aws-sdk/lib/request.js:22:10)
    at AcceptorStateMachine.runTo (/data/node_modules/aws-sdk/lib/state_machine.js:14:12)