these 2 derivations will be built:
  /nix/store/p9i27f7z6wq1jxvd3kyddxa1w4bghbyk-closure-info.drv
  /nix/store/7prc2kxm4iiiblidabviij9rk4pc6s9d-check-vars.drv
error: path '/nix/store/aqfhsh3zn4lja24pscpy4gmns48fkkvm-check-vars' is not valid
error: Cannot build '/nix/store/7prc2kxm4iiiblidabviij9rk4pc6s9d-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/aqfhsh3zn4lja24pscpy4gmns48fkkvm-check-vars