The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/acceptance/version-upgrade/run_1
	cluster.go:1855,versionupgrade.go:377,versionupgrade.go:213,versionupgrade.go:201,acceptance.go:54,acceptance.go:104,test_runner.go:777: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod start --binary=v21.2.0-beta.2/cockroach --encrypt=false --sequential=false teamcity-3674519-1635924358-17-n4cpu4:1-4 returned: exit status 7
		(1) /home/agent/work/.go/src/github.com/cockroachdb/cockroach/bin/roachprod start --binary=v21.2.0-beta.2/cockroach --encrypt=false --sequential=false teamcity-3674519-1635924358-17-n4cpu4:1-4 returned
		  | stderr:
		  |
		  | stdout:
		  | <... some data truncated by circular buffer; go to artifacts for details ...>
		  | c9(0x1a0f940, 0xc0005c9740, 0x1, 0x4, 0xc00035fa10, 0xc00035fa38)
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:472 +0x1d5
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !main.wrap.func1(0x1a0f940, 0xc0005c9740, 0x1, 0x4)
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:122 +0x6b
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !github.com/spf13/cobra.(*Command).execute(0x1a0f940, 0xc0005c9700, 0x4, 0x4, 0x1a0f940, 0xc0005c9700)
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:856 +0x2c2
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !github.com/spf13/cobra.(*Command).ExecuteC(0x1a0f6c0, 0x0, 0x0, 0xc0001688c0)
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:960 +0x375
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !github.com/spf13/cobra.(*Command).Execute(...)
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/vendor/github.com/spf13/cobra/command.go:897
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !main.main()
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !	/home/agent/work/.go/src/github.com/cockroachdb/cockroach/pkg/cmd/roachprod/main.go:1282 +0x2619
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !****************************************************************************
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !This node experienced a fatal error (printed above), and as a result the
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !process is terminating.
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !Fatal errors can occur due to faulty hardware (disks, memory, clocks) or a
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !problem in CockroachDB. With your help, the support team at Cockroach Labs
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !will try to determine the root cause, recommend next steps, and we can
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !improve CockroachDB based on your report.
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !Please submit a crash report by following the instructions here:
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !    https://github.com/cockroachdb/cockroach/issues/new/choose
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !If you would rather not post publicly, please contact us directly at:
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !    support@cockroachlabs.com
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !
		  | F211103 07:31:15.238788 1 roachprod/install/cluster_synced.go:1678  [-] 2 !The Cockroach Labs team appreciates your feedback.
		Wraps: (2) exit status 7
		Error types: (1) *cluster.WithCommandDetails (2) *exec.ExitError