[CBSE] Projector Panic when ns_server timeouts while fetching cinfo

2021-07-08T19:56:38.009+08:00 [Error] cic.cinfo.FetchWithLock(): Get http://127.0.0.1:8091/pools/default?uuid=08979d92760c3fb20c4b1e5a37030c53: net/http: request canceled (Client.Timeout exceeded while awaiting headers)
2021-07-08T19:56:38.009+08:00 [Error] FEED[<=>INIT_STREAM_TOPIC_2e013fe77049a23c742c7b62c0b7feec(127.0.0.1:8091)] feed gen-server crashed: runtime error: invalid memory address or nil pointer dereference
2021-07-08T19:56:38.010+08:00 [Error] /home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/logging/logging.go:312 +0x22
github.com/couchbase/indexing/secondary/projector.(*Feed).genServer.func1(0xc0c4fc6d00)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/projector/feed.go:477 +0x117
panic(0xb8ef60, 0x16c81e0)
/home/couchbase/.cbdepscache/exploded/x86_64/go-1.11.6/go/src/runtime/panic.go:513 +0x1b9
github.com/couchbase/indexing/secondary/dcp.queryRestAPI(0x0, 0xc00e7ce9c7, 0x7, 0x0, 0x0, 0xc46220, 0xc05d972480, 0xc000500c78, 0x0, 0x0)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/dcp/pools.go:312 +0x9d
github.com/couchbase/indexing/secondary/dcp.(*Client).parseURLResponse(0xc0004e2360, 0xc00e7ce9c7, 0x7, 0xc46220, 0xc05d972480, 0xc00e7ce9c7, 0x7)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/dcp/pools.go:439 +0xb1
github.com/couchbase/indexing/secondary/dcp.(*Pool).getTerseBucket(0xc0004e2328, 0xc00e7ce9c7, 0x7, 0xc000500da0, 0x41268a, 0xd54a34, 0x33)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/dcp/pools.go:578 +0xe1
github.com/couchbase/indexing/secondary/dcp.(*Pool).RefreshBucket(0xc0004e2328, 0xc00e7ce9c7, 0x7, 0x0, 0xd0, 0xc0eb9d6dd0)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/dcp/pools.go:598 +0x148
github.com/couchbase/indexing/secondary/common.(*ClusterInfoCache).FetchBucketInfo(0xc0004e2240, 0xc00e7ce9c7, 0x7, 0x0, 0x0)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/common/cluster_info.go:385 +0x8c
github.com/couchbase/indexing/secondary/projector.(*Feed).getLocalVbuckets(0xc0c4fc6d00, 0xc00e7ce9c0, 0x7, 0xc00e7ce9c7, 0x7, 0x430, 0x0, 0x0, 0x0, 0x0, ...)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/projector/feed.go:1642 +0xaa
github.com/couchbase/indexing/secondary/projector.(*Feed).start(0xc0c4fc6d00, 0xc06f880600, 0x430, 0x110, 0xc06e72e5a0)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/projector/feed.go:856 +0x1e2
github.com/couchbase/indexing/secondary/projector.(*Feed).handleCommand(0xc0c4fc6d00, 0xc0e88b6080, 0x4, 0x4, 0x431801, 0xc023f06f80)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/projector/feed.go:685 +0x1410
github.com/couchbase/indexing/secondary/projector.(*Feed).genServer(0xc0c4fc6d00)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/projector/feed.go:496 +0x20be
created by github.com/couchbase/indexing/secondary/projector.NewFeed
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/indexing/secondary/projector/feed.go:127 +0x650