The test failed on branch=master, 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:288,decommission.go:48,test_runner.go:755: read tcp 172.17.0.3:59240->35.202.16.50:26257: read: connection reset by peer

	cluster.go:1657,context.go:135,cluster.go:1646,test_runner.go:836: dead node detection: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod monitor teamcity-2366018-1602742581-03-n4cpu4 --oneshot --ignore-empty-nodes: exit status 1 4: dead
		3: 4285
		2: 4547
		1: 4539
		Error: UNCLASSIFIED_PROBLEM: 4: dead
		(1) UNCLASSIFIED_PROBLEM
		Wraps: (2) attached stack trace
		  -- stack trace:
		  | main.glob..func14
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1143
		  | main.wrap.func1
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:267
		  | github.com/spf13/cobra.(*Command).execute
		  | 	/home/agent/work/.go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:830
		  | github.com/spf13/cobra.(*Command).ExecuteC
		  | 	/home/agent/work/.go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:914
		  | github.com/spf13/cobra.(*Command).Execute
		  | 	/home/agent/work/.go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:864
		  | main.main
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1839
		  | runtime.main
		  | 	/usr/local/go/src/runtime/proc.go:203
		  | runtime.goexit
		  | 	/usr/local/go/src/runtime/asm_amd64.s:1357
		Wraps: (3) 4: dead
		Error types: (1) errors.Unclassified (2) *withstack.withStack (3) *errutil.leafError