$ sudo dockerd
time="2018-12-18T11:35:38.132947212Z" level=info msg="libcontainerd: started new docker-containerd process" pid=3116
time="2018-12-18T11:35:38.133000321Z" level=info msg="parsed scheme: \"unix\"" module=grpc
time="2018-12-18T11:35:38.133008336Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
time="2018-12-18T11:35:38.133035467Z" level=info msg="ccResolverWrapper: sending new addresses to cc: [{unix:///var/run/docker/containerd/docker-containerd.sock 0  <nil>}]" module=grpc
time="2018-12-18T11:35:38.133047390Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
time="2018-12-18T11:35:38.133077947Z" level=info msg="pickfirstBalancer: HandleSubConnStateChange: 0xc00015c700, CONNECTING" module=grpc
time="2018-12-18T11:35:38Z" level=info msg="starting containerd" revision=468a545b9edcd5932818eb9de8e72413e616e86e version=v1.1.2 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.content.v1.content"..." type=io.containerd.content.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.snapshotter.v1.btrfs"..." type=io.containerd.snapshotter.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.snapshotter.v1.aufs"..." type=io.containerd.snapshotter.v1 
time="2018-12-18T11:35:38Z" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.aufs" error="modprobe aufs failed: "": exec: "modprobe": executable file not found in $PATH" 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.snapshotter.v1.native"..." type=io.containerd.snapshotter.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.snapshotter.v1.overlayfs"..." type=io.containerd.snapshotter.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.snapshotter.v1.zfs"..." type=io.containerd.snapshotter.v1 
time="2018-12-18T11:35:38Z" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.zfs" error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.zfs must be a zfs filesystem to be used with the zfs snapshotter" 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.metadata.v1.bolt"..." type=io.containerd.metadata.v1 
time="2018-12-18T11:35:38Z" level=warning msg="could not use snapshotter aufs in metadata plugin" error="modprobe aufs failed: "": exec: "modprobe": executable file not found in $PATH" 
time="2018-12-18T11:35:38Z" level=warning msg="could not use snapshotter zfs in metadata plugin" error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.zfs must be a zfs filesystem to be used with the zfs snapshotter" 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.differ.v1.walking"..." type=io.containerd.differ.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.gc.v1.scheduler"..." type=io.containerd.gc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.containers-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.content-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.diff-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.images-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.leases-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.namespaces-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.snapshots-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.monitor.v1.cgroups"..." type=io.containerd.monitor.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.runtime.v1.linux"..." type=io.containerd.runtime.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.service.v1.tasks-service"..." type=io.containerd.service.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.containers"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.content"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.diff"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.events"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.healthcheck"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.images"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.leases"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.namespaces"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.snapshots"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.tasks"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.version"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg="loading plugin "io.containerd.grpc.v1.introspection"..." type=io.containerd.grpc.v1 
time="2018-12-18T11:35:38Z" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd-debug.sock" 
time="2018-12-18T11:35:38Z" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd.sock" 
time="2018-12-18T11:35:38Z" level=info msg="containerd successfully booted in 0.001627s" 
time="2018-12-18T11:35:38.146251801Z" level=info msg="pickfirstBalancer: HandleSubConnStateChange: 0xc00015c700, READY" module=grpc
time="2018-12-18T11:35:38.148492680Z" level=warning msg="unable to modify root key limit, number of containers could be limited by this quota: open /proc/sys/kernel/keys/root_maxkeys: no such file or directory"
time="2018-12-18T11:35:38.148955226Z" level=info msg="parsed scheme: \"unix\"" module=grpc
time="2018-12-18T11:35:38.148969593Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
time="2018-12-18T11:35:38.149000691Z" level=info msg="ccResolverWrapper: sending new addresses to cc: [{unix:///var/run/docker/containerd/docker-containerd.sock 0  <nil>}]" module=grpc
time="2018-12-18T11:35:38.149010269Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
time="2018-12-18T11:35:38.149039755Z" level=info msg="pickfirstBalancer: HandleSubConnStateChange: 0xc00015cfb0, CONNECTING" module=grpc
time="2018-12-18T11:35:38.149150021Z" level=info msg="pickfirstBalancer: HandleSubConnStateChange: 0xc00015cfb0, READY" module=grpc
time="2018-12-18T11:35:38.155961765Z" level=info msg="Graph migration to content-addressability took 0.00 seconds"
time="2018-12-18T11:35:38.155987473Z" level=warning msg="Failed to parse cgroup information: Failed to parse cgroup information: open /proc/self/cgroup: no such file or directory"
Error starting daemon: Devices cgroup isn't mounted