fatal error: out of memory
DIAGNOSIS:
I0312 08:21:51.059637   21285 main.go:305] ***************************
I0312 08:21:51.059692   21285 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 08:21:51.059736   21285 main.go:307] Version release-20200219.0-136-g24e7005ab6bd
I0312 08:21:51.059760   21285 main.go:308] PID: 21285
I0312 08:21:51.059787   21285 main.go:309] UID: 0, GID: 0
I0312 08:21:51.059818   21285 main.go:310] Configuration:
I0312 08:21:51.059842   21285 main.go:311] 		RootDir: /syzkaller/managers/main/workdir/gvisor_root
I0312 08:21:51.059871   21285 main.go:312] 		Platform: ptrace
I0312 08:21:51.059894   21285 main.go:313] 		FileAccess: shared, overlay: false
I0312 08:21:51.059931   21285 main.go:314] 		Network: none, logging: false
I0312 08:21:51.059958   21285 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0312 08:21:51.059982   21285 main.go:316] ***************************
D0312 08:21:51.060039   21285 container.go:159] Load container "/syzkaller/managers/main/workdir/gvisor_root" "ci-gvisor-main-0"
D0312 08:21:51.061625   21285 container.go:592] Signal container "ci-gvisor-main-0": signal 0
D0312 08:21:51.061680   21285 sandbox.go:806] Signal sandbox "ci-gvisor-main-0"
D0312 08:21:51.061704   21285 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-0"
D0312 08:21:51.061839   21285 urpc.go:534] urpc: successfully marshalled 96 bytes.
I0312 08:21:51.372934   21285 debug.go:128] Found sandbox "ci-gvisor-main-0", PID: 17116
I0312 08:21:51.372979   21285 debug.go:137] Retrieving sandbox stacks
D0312 08:21:51.373009   21285 sandbox.go:924] Stacks sandbox "ci-gvisor-main-0"
D0312 08:21:51.373025   21285 sandbox.go:318] Connecting to sandbox "ci-gvisor-main-0"
W0312 08:21:51.373069   21285 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 17116: connection refused
retrieving stacks: connecting to control server at PID 17116: connection refused
W0312 08:21:51.373209   21285 main.go:338] Failure to execute command, err: 1