at Error (<anonymous>)
    at doassert (src/mongo/shell/assert.js:11:14)
    at Function.assert.writeOK (src/mongo/shell/assert.js:388:9)
    at /data/mci/src/jstests/multiVersion/w_majority_change.js:158:12
    at /data/mci/src/jstests/multiVersion/w_majority_change.js:174:2
2015-05-29T07:26:07.126+0000 E QUERY    Error: write concern failed with errors: {
	"nInserted" : 1,
	"writeConcernError" : {
		"code" : 64,
		"errInfo" : {
			"wtimeout" : true
		},
		"errmsg" : "waiting for replication timed out"
	}
}