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

goroutine 2803475 [running]:
encoding/binary.littleEndian.Uint16(...)
	GOROOT/src/encoding/binary/binary.go:53
DIAGNOSIS:
I0304 04:08:17.230559   60872 main.go:305] ***************************
I0304 04:08:17.230614   60872 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-2]
I0304 04:08:17.230656   60872 main.go:307] Version release-20200219.0-72-gce4d1e45bb88
I0304 04:08:17.230677   60872 main.go:308] PID: 60872
I0304 04:08:17.230700   60872 main.go:309] UID: 0, GID: 0
I0304 04:08:17.230725   60872 main.go:310] Configuration:
I0304 04:08:17.230746   60872 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0304 04:08:17.230773   60872 main.go:312] 		Platform: ptrace
I0304 04:08:17.230793   60872 main.go:313] 		FileAccess: shared, overlay: false
I0304 04:08:17.230820   60872 main.go:314] 		Network: none, logging: false
I0304 04:08:17.230845   60872 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0304 04:08:17.230867   60872 main.go:316] ***************************
D0304 04:08:17.230932   60872 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-2"
D0304 04:08:17.232711   60872 container.go:592] Signal container "ci-gvisor-main-2": signal 0
D0304 04:08:17.232764   60872 sandbox.go:806] Signal sandbox "ci-gvisor-main-2"
D0304 04:08:17.232779   60872 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-2"
D0304 04:08:17.232947   60872 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0304 04:08:18.395255   60872 debug.go:122] Found sandbox "ci-gvisor-main-2", PID: 427
I0304 04:08:18.395329   60872 debug.go:131] Retrieving sandbox stacks
D0304 04:08:18.395348   60872 sandbox.go:924] Stacks sandbox "ci-gvisor-main-2"
D0304 04:08:18.395359   60872 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-2"
W0304 04:08:18.395403   60872 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 427: connection refused
retrieving stacks: connecting to control server at PID 427: connection refused
W0304 04:08:18.395624   60872 main.go:338] Failure to execute command, err: 1