fatal error: out of memory
DIAGNOSIS:
I0312 03:44:24.403732   45275 main.go:305] ***************************
I0312 03:44:24.403795   45275 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-0]
I0312 03:44:24.403839   45275 main.go:307] Version release-20200219.0-136-g24e7005ab6bd
I0312 03:44:24.403872   45275 main.go:308] PID: 45275
I0312 03:44:24.403900   45275 main.go:309] UID: 0, GID: 0
I0312 03:44:24.403930   45275 main.go:310] Configuration:
I0312 03:44:24.403961   45275 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0312 03:44:24.404002   45275 main.go:312] 		Platform: ptrace
I0312 03:44:24.404029   45275 main.go:313] 		FileAccess: shared, overlay: false
I0312 03:44:24.404073   45275 main.go:314] 		Network: none, logging: false
I0312 03:44:24.404101   45275 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0312 03:44:24.404127   45275 main.go:316] ***************************
D0312 03:44:24.404210   45275 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-0"
D0312 03:44:24.405867   45275 container.go:592] Signal container "ci-gvisor-main-0": signal 0
D0312 03:44:24.405909   45275 sandbox.go:806] Signal sandbox "ci-gvisor-main-0"
D0312 03:44:24.405933   45275 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-0"
D0312 03:44:24.406072   45275 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0312 03:44:24.968012   45275 debug.go:128] Found sandbox "ci-gvisor-main-0", PID: 30208
I0312 03:44:24.968072   45275 debug.go:137] Retrieving sandbox stacks
D0312 03:44:24.968116   45275 sandbox.go:924] Stacks sandbox "ci-gvisor-main-0"
D0312 03:44:24.968134   45275 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-0"
W0312 03:44:24.968179   45275 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 30208: connection refused
retrieving stacks: connecting to control server at PID 30208: connection refused
W0312 03:44:24.968321   45275 main.go:338] Failure to execute command, err: 1