panic: runtime error: index out of range [1] with length 0

goroutine 452 [running]:
encoding/binary.littleEndian.Uint16(...)
DIAGNOSIS:
I0301 14:00:53.781229    5382 main.go:305] ***************************
I0301 14:00:53.781292    5382 main.go:306] Args: [/syzkaller/managers/main/current/image -root /syzkaller/managers/main/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=shared -network=none debug -stacks --ps ci-gvisor-main-3]
I0301 14:00:53.781360    5382 main.go:307] Version release-20200219.0-72-gce4d1e45bb88
I0301 14:00:53.781388    5382 main.go:308] PID: 5382
I0301 14:00:53.781415    5382 main.go:309] UID: 0, GID: 0
I0301 14:00:53.781441    5382 main.go:310] Configuration:
I0301 14:00:53.781468    5382 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0301 14:00:53.781495    5382 main.go:312] 		Platform: ptrace
I0301 14:00:53.781531    5382 main.go:313] 		FileAccess: shared, overlay: false
I0301 14:00:53.781568    5382 main.go:314] 		Network: none, logging: false
I0301 14:00:53.781597    5382 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0301 14:00:53.781621    5382 main.go:316] ***************************
D0301 14:00:53.781711    5382 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-3"
D0301 14:00:53.783379    5382 container.go:592] Signal container "ci-gvisor-main-3": signal 0
D0301 14:00:53.783417    5382 sandbox.go:806] Signal sandbox "ci-gvisor-main-3"
D0301 14:00:53.783431    5382 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-3"
D0301 14:00:53.783603    5382 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0301 14:00:54.080694    5382 debug.go:122] Found sandbox "ci-gvisor-main-3", PID: 4122
I0301 14:00:54.080743    5382 debug.go:131] Retrieving sandbox stacks
D0301 14:00:54.080768    5382 sandbox.go:924] Stacks sandbox "ci-gvisor-main-3"
D0301 14:00:54.080783    5382 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-3"
W0301 14:00:54.080829    5382 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 4122: connection refused
retrieving stacks: connecting to control server at PID 4122: connection refused
W0301 14:00:54.080960    5382 main.go:338] Failure to execute command, err: 1