Cannot send to destroyed tchannel

[Raynos]

Error: cannot send() to destroyed tchannel
    at TChannel.send [as request] (/home/raynos/uber/autobahn/node_modules/tchannel/index.js:286:15)
    at TChannel.send (/home/raynos/uber/autobahn/node_modules/tchannel/index.js:278:20)
    at new PingSender (/home/raynos/uber/autobahn/node_modules/ringpop/lib/swim.js:84:23)
    at RingPop.sendPing (/home/raynos/uber/autobahn/node_modules/ringpop/index.js:695:12)
    at RingPop.protocolPingReq (/home/raynos/uber/autobahn/node_modules/ringpop/index.js:457:10)
    at RingPopTChannel.protocolPingReq (/home/raynos/uber/autobahn/node_modules/ringpop/lib/tchannel.js:183:18)
    at runHandler (/home/raynos/uber/autobahn/node_modules/tchannel/index.js:764:14)
    at process._tickDomainCallback (node.js:459:13)

It looks like if we closed ringpop whilst a ping is mid flight it does not check whether its destroyed in the protocolPingReq method of ringpop.

[jwolski]

ack. thank you for your submission ;)