panic: runtime error: index out of range

goroutine 289 [running]:
DIAGNOSIS:
I0330 02:43:40.472724    8302 x:0] ***************************
I0330 02:43:40.472845    8302 x:0] Args: [/syzkaller/managers/ptrace-proxy-sandbox-race/current/image -root /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=ptrace -file-access=shared -network=sandbox debug -stacks ci-gvisor-ptrace-proxy-sandbox-race-3]
I0330 02:43:40.472898    8302 x:0] Git Revision: ed23f547093e705ba3d6f82b2ce49592180f9a5a
I0330 02:43:40.472913    8302 x:0] PID: 8302
I0330 02:43:40.472928    8302 x:0] UID: 0, GID: 0
I0330 02:43:40.472945    8302 x:0] Configuration:
I0330 02:43:40.472955    8302 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0330 02:43:40.472968    8302 x:0] 		Platform: ptrace
I0330 02:43:40.472991    8302 x:0] 		FileAccess: shared, overlay: false
I0330 02:43:40.473008    8302 x:0] 		Network: sandbox, logging: false
I0330 02:43:40.473025    8302 x:0] 		Strace: false, max size: 1024, syscalls: []
I0330 02:43:40.473042    8302 x:0] ***************************
D0330 02:43:40.473092    8302 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 02:43:40.478707    8302 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-3": signal 0
D0330 02:43:40.478773    8302 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 02:43:40.478798    8302 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 02:43:40.479154    8302 x:0] urpc: successfully marshalled 117 bytes.
I0330 02:43:40.595316    8302 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3", PID: 4948
I0330 02:43:40.595391    8302 x:0] Retrieving sandbox stacks
D0330 02:43:40.595413    8302 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 02:43:40.595446    8302 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 02:43:40.595594    8302 x:0] urpc: successfully marshalled 36 bytes.
W0330 02:43:40.602894    8302 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer