[panic] restart pouchd with the newest code panic

[HusterWan]

Ⅰ. Issue Description

when i restart pouchd, i got panic error:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x48 pc=0x17d2e14]

goroutine 47 [running]:
github.com/alibaba/pouch/daemon/mgr.(*ContainerManager).markStoppedAndRelease(0xc4200e03f0, 0xc4203a6000, 0x0, 0x1, 0x1)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/daemon/mgr/container.go:1643 +0x324
github.com/alibaba/pouch/daemon/mgr.(*ContainerManager).Restore.func1(0x26b4a40, 0xc4203a6000, 0x9b6, 0x1c12bc0)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/daemon/mgr/container.go:212 +0x5cf
github.com/alibaba/pouch/pkg/meta.(*Store).ForEach(0xc420297020, 0xc420288d00, 0xc420561cb0, 0xc420561ca0)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/pkg/meta/store.go:197 +0x1e9
github.com/alibaba/pouch/daemon/mgr.(*ContainerManager).Restore(0xc4200e03f0, 0x26c9280, 0xc4201e6240, 0x1, 0xc4202fa990)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/daemon/mgr/container.go:224 +0x8f
github.com/alibaba/pouch/daemon/mgr.NewContainerManager(0x26c9280, 0xc4201e6240, 0xc420297020, 0x26d34e0, 0xc420390140, 0x26ce480, 0xc4201e62c0, 0x26ce4e0, 0xc42000e0a0, 0x271a960, ...)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/daemon/mgr/container.go:179 +0x509
github.com/alibaba/pouch/internal.GenContainerMgr(0x26c9280, 0xc4201e6240, 0x26cee40, 0xc420341540, 0xc42000e0a0, 0x0, 0x0, 0x0)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/internal/generator.go:28 +0x1c7
github.com/alibaba/pouch/daemon.(*Daemon).Run(0xc420341540, 0x0, 0x0)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/daemon/daemon.go:166 +0x22b
main.runDaemon.func2(0xc420296f00, 0xc420341540)
	/tmp/pouchbuild/src/github.com/alibaba/pouch/main.go:202 +0x2b
created by main.runDaemon
	/tmp/pouchbuild/src/github.com/alibaba/pouch/main.go:200 +0x5aa

• how to replay the panic
  • first run a container

  root@osboxes:wanziren -> pouch ps
  Name       ID       Status         Created      Image                                       Runtime
  for-test   9d123f   Up 4 seconds   6 days ago   reg.docker.alibaba-inc.com/busybox:latest   runc
  

  • stop pouchd and kill the container process
  • start pouchd, now you can get the same panic error

Ⅱ. Describe what happened

Ⅲ. Describe what you expected to happen

Ⅳ. How to reproduce it (as minimally and precisely as possible)

Ⅴ. Anything else we need to know?

Ⅵ. Environment:

• pouch version (use pouch version):
• OS (e.g. from /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools:
• Others:

[pouchrobot]

Thanks for your report, @HusterWan
😱 This is a priority/P1 issue which is highest.
Seems to be severe enough.
ping @alibaba/pouch , PTAL.