resolvconf broken in recent nixos-unstable

[peti]

After updating to nixos-unstable @ 2e8fc97, my network configuration is broken insofar as that resolvconf fails to configure the DNS resolver for the wifi interface:

dhcpcd[3679]: wlp3s0: leased 192.168.178.23 for 864000 seconds
dhcpcd[3679]: wlp3s0: adding route to 192.168.178.0/24
dhcpcd[3679]: wlp3s0: adding default route via 192.168.178.1
dbus-daemon[1037]: [system] Activating via systemd: service name='org.freedesktop.resolve1' unit='dbus-org.freedesktop.resolve1.service' requested by ':1.105' (uid=0 pid=3684 comm="resolvconf -a wlp3s0.dhcp " label="kernel")
dbus-daemon[1037]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.resolve1.service': Unit dbus-org.freedesktop.resolve1.service not found.
dhcpcd[3679]: Failed to set DNS configuration: Unit dbus-org.freedesktop.resolve1.service not found.
dhcpcd[3679]: Failed to reload-or-try-restart ntpd.service: Unit ntpd.service not found.
dhcpcd[3679]: Failed to reload-or-try-restart openntpd.service: Unit openntpd.service not found.
dhcpcd[3679]: Failed to reload-or-try-restart chronyd.service: Unit chronyd.service not found.
dhcpcd[3679]: forked to background, child pid 3688
systemd[1]: Started DHCP Client.

The system works fine in 3140fa8.

[leocp1]

Possibly duplicate of #76969?

[peti]

Yes, the fix to that issue fixed my problems, too.