panic: runtime error: index out of range

goroutine 2085 [running]:
DIAGNOSIS:
I0330 01:13:59.650187   24666 x:0] ***************************
I0330 01:13:59.650312   24666 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-2]
I0330 01:13:59.650362   24666 x:0] Git Revision: ed23f547093e705ba3d6f82b2ce49592180f9a5a
I0330 01:13:59.650395   24666 x:0] PID: 24666
I0330 01:13:59.650410   24666 x:0] UID: 0, GID: 0
I0330 01:13:59.650438   24666 x:0] Configuration:
I0330 01:13:59.650450   24666 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0330 01:13:59.650468   24666 x:0] 		Platform: ptrace
I0330 01:13:59.650482   24666 x:0] 		FileAccess: shared, overlay: false
I0330 01:13:59.650506   24666 x:0] 		Network: sandbox, logging: false
I0330 01:13:59.650532   24666 x:0] 		Strace: false, max size: 1024, syscalls: []
I0330 01:13:59.650549   24666 x:0] ***************************
D0330 01:13:59.650608   24666 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0330 01:13:59.657688   24666 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-2": signal 0
D0330 01:13:59.657785   24666 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0330 01:13:59.657820   24666 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0330 01:13:59.658247   24666 x:0] urpc: successfully marshalled 117 bytes.
I0330 01:13:59.795375   24666 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2", PID: 20815
I0330 01:13:59.795490   24666 x:0] Retrieving sandbox stacks
D0330 01:13:59.795542   24666 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0330 01:13:59.795574   24666 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0330 01:13:59.795697   24666 x:0] urpc: successfully marshalled 36 bytes.
W0330 01:13:59.803235   24666 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2" stacks: urpc method "debug.Stacks" failed: connection reset by peer