-- stack trace:
		  | main.(*monitor).wait.func2
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:2700
		Wraps: (4) monitor task failed
		Wraps: (5) attached stack trace
		  -- stack trace:
		  | main.runTPCCBench.func3.1
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/tpcc.go:883
		  | [...repeated from below...]
		Wraps: (6) error running tpcc load generator
		Wraps: (7) attached stack trace
		  -- stack trace:
		  | main.(*cluster).RunE
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:2292
		  | main.runTPCCBench.func3.1
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/tpcc.go:880
		  | main.(*monitor).Go.func1
		  | 	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachtest/cluster.go:2634
		  | golang.org/x/sync/errgroup.(*Group).Go.func1
		  | 	/home/agent/work/.go/pkg/mod/golang.org/x/sync@v0.0.0-20190911185100-cd5d95a43a6e/errgroup/errgroup.go:57
		  | runtime.goexit
		  | 	/usr/local/go/src/runtime/asm_amd64.s:1357
		Wraps: (8) output in run_113310.918_n13_workload_run_tpcc
		Wraps: (9) /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod run teamcity-2280896-1600405837-02-n13cpu16:13 -- ./workload run tpcc --warehouses=8000 --active-warehouses=4640 --tolerate-errors --scatter --ramp=5m0s --duration=10m0s {pgurl:1-12} --histograms=perf/warehouses=4640/stats.json returned
		  | stderr:
		  | I200918 11:33:12.518291 1 workload/cli/run.go:356  creating load generator...
		  | E200918 15:56:06.966646 1 workload/cli/run.go:379  Attempt to create load generator failed. It's been more than 10m0s since we started trying to create the load generator so we're giving up. Last failure: failed to initialize the load generator: preparing 
		  | 		UPDATE district
		  | 		SET d_next_o_id = d_next_o_id + 1
		  | 		WHERE d_w_id = $1 AND d_id = $2
		  | 		RETURNING d_tax, d_next_o_id: context deadline exceeded
		  | Error: failed to initialize the load generator: preparing 
		  | 		UPDATE district
		  | 		SET d_next_o_id = d_next_o_id + 1
		  | 		WHERE d_w_id = $1 AND d_id = $2
		  | 		RETURNING d_tax, d_next_o_id: context deadline exceeded
		  | Error: COMMAND_PROBLEM: exit status 1
		  | (1) COMMAND_PROBLEM
		  | Wraps: (2) Node 13. Command with error:
		  |   | ```
		  |   | ./workload run tpcc --warehouses=8000 --active-warehouses=4640 --tolerate-errors --scatter --ramp=5m0s --duration=10m0s {pgurl:1-12} --histograms=perf/warehouses=4640/stats.json
		  |   | ```
		  | Wraps: (3) exit status 1
		  | Error types: (1) errors.Cmd (2) *hintdetail.withDetail (3) *exec.ExitError
		  |
		  | stdout:
		  | Initializing 9280 connections...
		  | Initializing 46400 workers and preparing statements...
		Wraps: (10) exit status 20
		Error types: (1) *withstack.withStack (2) *errutil.withPrefix (3) *withstack.withStack (4) *errutil.withPrefix (5) *withstack.withStack (6) *errutil.withPrefix (7) *withstack.withStack (8) *errutil.withPrefix (9) *main.withCommandDetails (10) *exec.ExitError