this derivation will be built:
  /nix/store/imn68dqa2dbp5lixc90l12czqmhgak0g-treefmt-check.drv
error: Cannot build '/nix/store/imn68dqa2dbp5lixc90l12czqmhgak0g-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/v7h08gdim8lycqihcsqlhw5kbinl92j7-treefmt-check
       Last 25 log lines:
       > +        if settings.beacon.checkpointSyncUrl != null then
       > +          settings.beacon.checkpointSyncUrl
       > +        else
       > +          "https://beaconstate.ethstaker.cc";
       >      });
       >    };
       >  
       > diff --git a/clanServices/dvt/roles/ecl/teku.nix b/clanServices/dvt/roles/ecl/teku.nix
       > index 47bca50..e5e8e2e 100644
       > --- a/clanServices/dvt/roles/ecl/teku.nix
       > +++ b/clanServices/dvt/roles/ecl/teku.nix
       > @@ -75,9 +75,10 @@ in
       >      })
       >      // (lib.optionalAttrs (settings.network != null) {
       >        "checkpoint-sync-url" =
       > -        if settings.beacon.checkpointSyncUrl != null
       > -        then settings.beacon.checkpointSyncUrl
       > -        else "https://beaconstate.ethstaker.cc";
       > +        if settings.beacon.checkpointSyncUrl != null then
       > +          settings.beacon.checkpointSyncUrl
       > +        else
       > +          "https://beaconstate.ethstaker.cc";
       >      });
       >    };
       >  
       For full logs, run:
         nix log /nix/store/imn68dqa2dbp5lixc90l12czqmhgak0g-treefmt-check.drv