The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/20200306-1790595/engine/switch/nodes=3/run_1
	test_runner.go:756: test timed out (10h0m0s)

	cluster.go:1935,engine_switch.go:129,engine_switch.go:140,test_runner.go:741: error with attached stack trace:
		    main.(*cluster).RunE
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:2010
		    main.(*cluster).Run
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:1933
		    main.registerEngineSwitch.func1
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/engine_switch.go:129
		    main.registerEngineSwitch.func2
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/engine_switch.go:140
		    main.(*testRunner).runTest.func2
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/test_runner.go:741
		    runtime.goexit
		    	/usr/local/go/src/runtime/asm_amd64.s:1357
		  - error with embedded safe details: output in %s
		    -- arg 1: <string>
		  - output in run_082446.331_n4_workload_check_tpcc:
		  - error with attached stack trace:
		    main.execCmd
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:406
		    main.(*cluster).RunL
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:2019
		    main.(*cluster).RunE
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:2000
		    main.(*cluster).Run
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:1933
		    main.registerEngineSwitch.func1
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/engine_switch.go:129
		    main.registerEngineSwitch.func2
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/engine_switch.go:140
		    main.(*testRunner).runTest.func2
		    	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/test_runner.go:741
		    runtime.goexit
		    	/usr/local/go/src/runtime/asm_amd64.s:1357
		  - error with embedded safe details: %s returned:
		    stderr:
		    %s
		    stdout:
		    %s
		    -- arg 1: <string>
		    -- arg 2: <string>
		    -- arg 3: <string>
		  - /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod run teamcity-1790595-1583481796-02-n4cpu4:4 -- ./workload check tpcc --warehouses=1 --expensive-checks=true {pgurl:1} returned:
		    stderr:
		    
		    stdout::
		  - context canceled