these 5 derivations will be built:
  /nix/store/4r72kp1f7caypn35hv2718w2rsmf2ggs-closure-info.drv
  /nix/store/x2fmrp4wvq2vs6wq28mw05piv4zy2bmx-clan-runtime.drv
  /nix/store/8bl5pfksv2li46llrkx5y21aznrg9skg-clan-cli-source.drv
  /nix/store/r8875ygdh3i5g7wl8mx1v2404g5ixa99-clan-cli.drv
  /nix/store/k8bby6yz0sx62sx4zzk29ppwqh3ix24x-check-vars.drv
error: path '/nix/store/k365ax01q912f3mja0s85pamvmz057i4-check-vars' is not valid
error: Cannot build '/nix/store/k8bby6yz0sx62sx4zzk29ppwqh3ix24x-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/k365ax01q912f3mja0s85pamvmz057i4-check-vars