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

goroutine 391 [running]:
encoding/binary.littleEndian.Uint16(...)
	GOROOT/src/encoding/binary/binary.go:53
DIAGNOSIS:
I0301 09:43:10.014933   53076 main.go:305] ***************************
I0301 09:43:10.014989   53076 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 09:43:10.015033   53076 main.go:307] Version release-20200219.0-72-gce4d1e45bb88
I0301 09:43:10.015058   53076 main.go:308] PID: 53076
I0301 09:43:10.015087   53076 main.go:309] UID: 0, GID: 0
I0301 09:43:10.015115   53076 main.go:310] Configuration:
I0301 09:43:10.015141   53076 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0301 09:43:10.015182   53076 main.go:312] 		Platform: ptrace
I0301 09:43:10.015210   53076 main.go:313] 		FileAccess: shared, overlay: false
I0301 09:43:10.015248   53076 main.go:314] 		Network: none, logging: false
I0301 09:43:10.015276   53076 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0301 09:43:10.015301   53076 main.go:316] ***************************
D0301 09:43:10.015357   53076 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-3"
D0301 09:43:10.018244   53076 container.go:592] Signal container "ci-gvisor-main-3": signal 0
D0301 09:43:10.018280   53076 sandbox.go:806] Signal sandbox "ci-gvisor-main-3"
D0301 09:43:10.018292   53076 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-3"
D0301 09:43:10.018408   53076 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0301 09:43:10.322103   53076 debug.go:122] Found sandbox "ci-gvisor-main-3", PID: 42945
I0301 09:43:10.322145   53076 debug.go:131] Retrieving sandbox stacks
D0301 09:43:10.322165   53076 sandbox.go:924] Stacks sandbox "ci-gvisor-main-3"
D0301 09:43:10.322186   53076 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-3"
W0301 09:43:10.322232   53076 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 42945: connection refused
retrieving stacks: connecting to control server at PID 42945: connection refused
W0301 09:43:10.322348   53076 main.go:338] Failure to execute command, err: 1