roachtest: sqlsmith/setup=empty/setting=default failed

[cockroach-teamcity]

(roachtest).sqlsmith/setup=empty/setting=default failed on provisional_202008031850_v20.2.0-alpha.3@b0ec3c9834d59be51e7af8a070bbef8b20f2d62a:

The test failed on branch=provisional_202008031850_v20.2.0-alpha.3, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/sqlsmith/setup=empty/setting=default/run_1
	sqlsmith.go:188,sqlsmith.go:202,test_runner.go:754: ping: dial tcp 35.202.138.70:26257: connect: connection refused
		previous sql:
		BACKUP TABLE defaultdb.public.tab_241 TO 'http://127.0.0.1:34429/backup_29';

	cluster.go:1571,context.go:135,cluster.go:1560,test_runner.go:823: dead node detection: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod monitor teamcity-2143445-1596487173-07-n4cpu4 --oneshot --ignore-empty-nodes: exit status 1 3: 5648
		2: 5666
		4: 5605
		1: dead
		Error: UNCLASSIFIED_PROBLEM: 1: dead
		(1) UNCLASSIFIED_PROBLEM
		Wraps: (2) attached stack trace
		  | main.glob..func13
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1115
		  | main.wrap.func1
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:266
		  | github.com/spf13/cobra.(*Command).execute
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:830
		  | github.com/spf13/cobra.(*Command).ExecuteC
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:914
		  | github.com/spf13/cobra.(*Command).Execute
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:864
		  | main.main
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1808
		  | runtime.main
		  | 	/usr/local/go/src/runtime/proc.go:203
		  | runtime.goexit
		  | 	/usr/local/go/src/runtime/asm_amd64.s:1373
		Wraps: (3) 3 safe details enclosed
		Wraps: (4) 1: dead
		Error types: (1) errors.Unclassified (2) *withstack.withStack (3) *safedetails.withSafeDetails (4) *errors.errorString

More

Artifacts: /sqlsmith/setup=empty/setting=default
Related:

• roachtest: sqlsmith/setup=empty/setting=default failed #51366 roachtest: sqlsmith/setup=empty/setting=default failed C-test-failure O-roachtest O-robot branch-master release-blocker

• roachtest: sqlsmith/setup=empty/setting=default failed #47541 roachtest: sqlsmith/setup=empty/setting=default failed C-test-failure O-roachtest O-robot branch-release-20.1 release-blocker

See this test on roachdash
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[dt]

#52281