fatal error: out of memory
DIAGNOSIS:
I0321 11:56:14.848161   64978 main.go:305] ***************************
I0321 11:56:14.848223   64978 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]
I0321 11:56:14.848280   64978 main.go:307] Version release-20200219.0-214-gd5fe1ce0c1c5
I0321 11:56:14.848307   64978 main.go:308] PID: 64978
I0321 11:56:14.848332   64978 main.go:309] UID: 0, GID: 0
I0321 11:56:14.848355   64978 main.go:310] Configuration:
I0321 11:56:14.848377   64978 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0321 11:56:14.848428   64978 main.go:312] 		Platform: ptrace
I0321 11:56:14.848462   64978 main.go:313] 		FileAccess: shared, overlay: false
I0321 11:56:14.848507   64978 main.go:314] 		Network: none, logging: false
I0321 11:56:14.848564   64978 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0321 11:56:14.848595   64978 main.go:316] ***************************
D0321 11:56:14.848668   64978 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-2"
D0321 11:56:14.850421   64978 container.go:592] Signal container "ci-gvisor-main-2": signal 0
D0321 11:56:14.850471   64978 sandbox.go:814] Signal sandbox "ci-gvisor-main-2"
D0321 11:56:14.850488   64978 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-2"
D0321 11:56:14.850642   64978 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0321 11:56:15.486740   64978 debug.go:128] Found sandbox "ci-gvisor-main-2", PID: 40123
I0321 11:56:15.486774   64978 debug.go:137] Retrieving sandbox stacks
D0321 11:56:15.486799   64978 sandbox.go:932] Stacks sandbox "ci-gvisor-main-2"
D0321 11:56:15.486827   64978 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-2"
W0321 11:56:15.486865   64978 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 40123: connection refused
retrieving stacks: connecting to control server at PID 40123: connection refused
W0321 11:56:15.486986   64978 main.go:338] Failure to execute command, err: 1