If not passing -U to systemd-nspawn, systemd-networkd does not start successfully in a container where systemd-242 is running on the host. ``` # systemctl status systemd-networkd ● systemd-networkd.service - Network Service Loaded: loaded (/lib/systemd/system/systemd-networkd.service; enabled; vendor preset: > Active: inactive (dead) Condition: start condition failed at Sun 2019-04-14 06:33:18 PDT; 13s ago └─ ConditionCapability=CAP_NET_ADMIN was not met Docs: man:systemd-networkd.service(8) ``` This is a regression in systemd-242. I've created a bug report upstream and a fix is forthcoming.