these 2 derivations will be built:
  /nix/store/9vxyvd1ks3dqzlscz3n01y0iz8r2kqqc-closure-info.drv
  /nix/store/ddl277ghqg6f5cm15lcz0334pkh64r74-check-vars.drv
error: path '/nix/store/lrrw95nwzwpwwb693kabkh4azaify80g-check-vars' is not valid
error: Cannot build '/nix/store/ddl277ghqg6f5cm15lcz0334pkh64r74-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/lrrw95nwzwpwwb693kabkh4azaify80g-check-vars