TestStreamWriterAttachBadOutgoingConn: working = true, want false

[heyitsanthony]

via semaphore (https://semaphoreci.com/coreos/etcd/branches/master/builds/781)

--- FAIL: TestStreamWriterAttachBadOutgoingConn (0.02s)
    stream_test.go:109: working = true, want false
    stream_test.go:112: failed to close the underlying connection

Possibly triggered by #6175

[gyuho]

2016-08-15 23:13:02.827773 E | rafthttp: failed to write 1 on stream Message (blah)
2016-08-15 23:13:02.828097 I | rafthttp: peer 1 became inactive
2016-08-15 23:13:02.841645 W | rafthttp: lost the TCP streaming connection with peer 1 (stream Message writer)
2016-08-15 23:13:02.841790 I | rafthttp: stopped streaming with peer 1 (writer)

Isn't it already deactivating the status after we send message to msgc?

(cr *streamReader) decodeLoop never got called based on the logs.

Maybe cw.close() took more than 10ms before it sets working as false?