panic: runtime error: index out of range

goroutine 282 [running]:
DIAGNOSIS:
I0330 00:44:42.721216   25773 x:0] ***************************
I0330 00:44:42.721369   25773 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 00:44:42.721447   25773 x:0] Git Revision: ed23f547093e705ba3d6f82b2ce49592180f9a5a
I0330 00:44:42.721477   25773 x:0] PID: 25773
I0330 00:44:42.721497   25773 x:0] UID: 0, GID: 0
I0330 00:44:42.721534   25773 x:0] Configuration:
I0330 00:44:42.721558   25773 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0330 00:44:42.721576   25773 x:0] 		Platform: ptrace
I0330 00:44:42.721620   25773 x:0] 		FileAccess: shared, overlay: false
I0330 00:44:42.721675   25773 x:0] 		Network: sandbox, logging: false
I0330 00:44:42.721718   25773 x:0] 		Strace: false, max size: 1024, syscalls: []
I0330 00:44:42.721742   25773 x:0] ***************************
D0330 00:44:42.721809   25773 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 00:44:42.728269   25773 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-3": signal 0
D0330 00:44:42.728341   25773 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 00:44:42.728373   25773 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 00:44:42.728804   25773 x:0] urpc: successfully marshalled 117 bytes.
I0330 00:44:43.051308   25773 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3", PID: 21888
I0330 00:44:43.051359   25773 x:0] Retrieving sandbox stacks
D0330 00:44:43.051377   25773 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 00:44:43.051421   25773 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0330 00:44:43.051552   25773 x:0] urpc: successfully marshalled 36 bytes.
W0330 00:44:43.059140   25773 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