Projector exited

Seen in the logs on build 4047:
Service 'projector' exited with status 1. Restarting. Messages: github.com/couchbase/indexing/secondary/common.ExitOnStdinClose()
/home/couchbase/jenkins/workspace/sherlock-unix/goproj/src/github.com/couchbase/indexing/secondary/common/util.go:316 +0x99
created by main.main
/home/couchbase/jenkins/workspace/sherlock-unix/goproj/src/github.com/couchbase/indexing/secondary/cmd/projector/main.go:93 +0x90d
[goport] 2015/08/20 16:33:10 /opt/couchbase/bin/projector terminated: exit status 2

Logs are at:
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-151-34-209.us-west-1.compute.amazonaws.com.zip
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-151-61-216.us-west-1.compute.amazonaws.com.zip
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-176-245-56.us-west-1.compute.amazonaws.com.zip
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-177-18-85.us-west-1.compute.amazonaws.com.zip
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-177-9-12.us-west-1.compute.amazonaws.com.zip
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-193-182-227.us-west-1.compute.amazonaws.com.zip
https://s3.amazonaws.com/cb-customers/perry/travelsamplefail/collectinfo-2015-08-20T165600-ns_1%40ec2-54-219-27-203.us-west-1.compute.amazonaws.com.zip