panic: runtime error: makeslice: len out of range

DIAGNOSIS:
I0314 13:47:19.138059   41171 main.go:305] ***************************
I0314 13:47:19.138110   41171 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]
I0314 13:47:19.138158   41171 main.go:307] Version release-20200219.0-175-g829beebf0b67
I0314 13:47:19.138182   41171 main.go:308] PID: 41171
I0314 13:47:19.138212   41171 main.go:309] UID: 0, GID: 0
I0314 13:47:19.138233   41171 main.go:310] Configuration:
I0314 13:47:19.138260   41171 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0314 13:47:19.138289   41171 main.go:312] 		Platform: ptrace
I0314 13:47:19.138310   41171 main.go:313] 		FileAccess: shared, overlay: false
I0314 13:47:19.138350   41171 main.go:314] 		Network: none, logging: false
I0314 13:47:19.138374   41171 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0314 13:47:19.138399   41171 main.go:316] ***************************
D0314 13:47:19.138461   41171 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-2"
D0314 13:47:19.140001   41171 container.go:592] Signal container "ci-gvisor-main-2": signal 0
D0314 13:47:19.140037   41171 sandbox.go:814] Signal sandbox "ci-gvisor-main-2"
D0314 13:47:19.140051   41171 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-2"
D0314 13:47:19.140235   41171 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0314 13:47:19.530421   41171 debug.go:128] Found sandbox "ci-gvisor-main-2", PID: 30946
I0314 13:47:19.530588   41171 debug.go:137] Retrieving sandbox stacks
D0314 13:47:19.530621   41171 sandbox.go:932] Stacks sandbox "ci-gvisor-main-2"
D0314 13:47:19.530645   41171 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-2"
W0314 13:47:19.530705   41171 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 30946: connection refused
retrieving stacks: connecting to control server at PID 30946: connection refused
W0314 13:47:19.531005   41171 main.go:338] Failure to execute command, err: 1