roachtest: decommission/nodes=4/duration=1h0m0s failed

[cockroach-teamcity]

(roachtest).decommission/nodes=4/duration=1h0m0s failed on release-20.1@b42f9f14ef5631c284cb4400f02e6e33a46f3cea:

The test failed on branch=release-20.1, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/decommission/nodes=4/duration=1h0m0s/run_1
	decommission.go:262,decommission.go:47,test_runner.go:754: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod start -a=--join 10.128.1.10:26257 --attrs=node1 teamcity-2123176-1595916631-08-n4cpu4:1 returned: exit status 1
		(1) /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod start -a=--join 10.128.1.10:26257 --attrs=node1 teamcity-2123176-1595916631-08-n4cpu4:1 returned
		  | stderr:
		  |
		  | stdout:
		  | teamcity-2123176-1595916631-08-n4cpu4: starting nodes
		  | teamcity-2123176-1595916631-08-n4cpu4: initializing clusterI200728 06:14:46.445649 8 cockroach.go:163  unable to initialize cluster: ~ 
		  | 		if ! test -e /mnt/data1/cockroach/cluster-bootstrapped ; then
		  | 			COCKROACH_CONNECT_TIMEOUT=0 ./cockroach init --url 'postgres://root@localhost:26257?sslmode=disable' && touch /mnt/data1/cockroach/cluster-bootstrapped
		  | 		fi
		  | warning: --url specifies user/password, but command "init" does not accept user/password details - details ignored
		  | *
		  | * ERROR: ERROR: rpc error: code = Unknown desc = already connected to cluster
		  | *
		  | E200728 06:14:46.413002 1 cli/error.go:373  ERROR: rpc error: code = Unknown desc = already connected to cluster
		  | ERROR: rpc error: code = Unknown desc = already connected to cluster
		  | Failed running "init": exit status 1
		Wraps: (2) exit status 1
		Error types: (1) *main.withCommandDetails (2) *exec.ExitError

More

Artifacts: /decommission/nodes=4/duration=1h0m0s
Related:

• roachtest: decommission/nodes=4/duration=1h0m0s failed #51952 roachtest: decommission/nodes=4/duration=1h0m0s failed C-test-failure O-roachtest O-robot branch-provisional_202007271721_v20.1.4 release-blocker

• roachtest: decommission/nodes=4/duration=1h0m0s failed #51713 roachtest: decommission/nodes=4/duration=1h0m0s failed C-test-failure O-roachtest O-robot branch-master release-blocker

See this test on roachdash
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[irfansharif]

#51907.