Newrelic crash in http instrumentation

README.md

I'm seeing this crash happen in a node http service running the newrelic agent. It seems to happen in this context:

1. An http request causes an unrecoverable error (unrelated to newrelic)
2. req.end() and req.destroy() are called on the request that caused the error
3. server.close() is called on the http server
4. The newrelic agent throws the above error

I am using node v4.2.3 and newrelic agent 1.24.0.

error.log

TypeError: Cannot read property 'port' of null
    at Server.wrappedHandler (/home/deploy/run/web/node_modules/newrelic/lib/instrumentation/core/http.js:57:38)
    at Server.wrapped (/home/deploy/run/web/node_modules/newrelic/lib/transaction/tracer/index.js:155:28)
    at Server.wrapTransactionInvocation (/home/deploy/run/web/node_modules/newrelic/lib/transaction/tracer/index.js:79:65)
    at emitTwo (events.js:87:13)
    at Server.emit (events.js:172:7)
    at HTTPParser.parserOnIncoming [as onIncoming] (_http_server.js:528:12)
    at HTTPParser.parserOnHeadersComplete (_http_common.js:88:23)