Comment # 4 on bug 1088702 from Thomas Blume

(In reply to Scott Simpson from comment #3)
> ssimpson@madhatter:~$ ls -l /var/run
> lrwxrwxrwx 1 root root 4 May 14  2017 /var/run -> /run
> ssimpson@madhatter:~$ ls -ld /run
> drwxr-xr-x 46 root root 1620 Apr 16 08:05 /run
> ssimpson@madhatter:~$ df -h /run
> Filesystem      Size  Used Avail Use% Mounted on
> tmpfs           3.9G  1.9M  3.9G   1% /run
> ssimpson@madhatter:~$

I've tried several other setups but still couldn't reproduce the issue.
Does it work if you start rpcbind in the running systemd, e.g:

systemctl start rpcbind

?
If so, it seems that rcpbind has a problem during system startup.
The symlink /var/run is already created in the initrd via:
/usr/lib/dracut/modules.d/30convertfs/convertfs.sh
That shouldn't be a problem.
To find out what happens during startup, please attach the output of:

journalctl -axb