TypeError: Cannot read property 'emit' of null

[xloem]

I'm getting this error on every run:

_http_client.js:277       
  req.emit('close');      
     ^                    

TypeError: Cannot read property 'emit' of null      
    at TLSSocket.socketCloseListener (_http_client.js:277:6)                                            
    at emitOne (events.js:101:20)                   
    at TLSSocket.emit (events.js:188:7)             
    at _handle.close (net.js:509:12)                
    at TCP.done [as _onclose] (_tls_wrap.js:332:7)  

[xloem]

nodejs/node#20690

[xloem]

I learned of NODE_DEBUG=http,net and got this immediately prior to the above error:

NET 5525: destroy undefined                         
NET 5525: destroy                                                                                       
NET 5525: close                                     
NET 5525: close handle                              
NET 5525: emit close      
HTTP 5525: HTTP socket close                        
NET 5525: _read           
NET 5525: _read wait for connection                 

[xloem]

node.js is on top of this as linked above. it's theoretically been fixed in git master.