[System Test] eventing crash observed in longevity - panic: runtime error: index out of range [768] with length 0

7.0.2-6522

Test:
-test tests/integration/cheshirecat/test_cheshirecat_kv_gsi_coll_xdcr_backup_sgw_fts_itemct_txns_eventing_cbas_scale3.yml -scope tests/integration/cheshirecat/scope_cheshirecat_with_backup.yml
Scale 3
1st iteration

Following eventing crash observed:

2021-08-17T20:48:58.055-07:00, ns_log:0:info:message(ns_1@172.23.96.48) - Service 'eventing' exited with status 2. Restarting. Messages:
2021-08-17T20:48:57.950-07:00 [Error] Producer::getOpCallback [sbm_0:1] Bucket get failed for key: <ud>eventing::3125843026::sbm_0::vb::7</ud> , err: circuit breaker open
2021-08-17T20:48:57.990-07:00 [Error] Producer::getOpCallback [n1ql_0:1] Bucket get failed for key: <ud>eventing::3692878293::n1ql_0::vb::3</ud> , err: circuit breaker open
2021-08-17T20:48:58.024-07:00 [Error] StartDcpFeedOver(): write tcp 172.23.96.48:42850->172.23.120.77:11210: write: broken pipe
2021-08-17T20:48:58.024-07:00 [Info] No collection with cid: 8 found
panic: runtime error: index out of range [768] with length 0

goroutine 325896 [running]:
github.com/couchbase/eventing/consumer.(*Consumer).dcpEventsRemainingToProcess(0xc002d11b00, 0x0, 0x0)
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/eventing/consumer/http_handlers.go:148 +0x8bb
created by github.com/couchbase/eventing/consumer.(*Consumer).updateWorkerStats
/home/couchbase/jenkins/workspace/couchbase-server-unix/goproj/src/github.com/couchbase/eventing/consumer/stats_updater.go:150 +0x2de

Logs:
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