Don't fail if task dirs don't exist on creation
Don't fail if task dirs don't exist on creation

Task dir metadata is created in AllocRunner.Run which may not run before
an alloc is sync'd and Nomad exits. There's no reason not to just create
task dir metadata on restore if it doesn't exist.

kmalec/nomad,hashicorp/nomad,frundh/nomad,nak3/nomad,frundh/nomad,nak3/nomad,kmalec/nomad,burdandrei/nomad,Ashald/nomad,kmalec/nomad,dvusboy/nomad,dvusboy/nomad,frundh/nomad,Ashald/nomad,Ashald/nomad,burdandrei/nomad,hashicorp/nomad,Ashald/nomad,Ashald/nomad,frundh/nomad,frundh/nomad,hashicorp/nomad,nak3/nomad,kmalec/nomad,hashicorp/nomad,nak3/nomad,burdandrei/nomad,frundh/nomad,dvusboy/nomad,frundh/nomad,kmalec/nomad,burdandrei/nomad,burdandrei/nomad,dvusboy/nomad,kmalec/nomad,Ashald/nomad,nak3/nomad,nak3/nomad,burdandrei/nomad,kmalec/nomad,hashicorp/nomad,dvusboy/nomad,nak3/nomad,dvusboy/nomad,dvusboy/nomad,Ashald/nomad,hashicorp/nomad,burdandrei/nomad