these 2 derivations will be built:
  /nix/store/snfqjhpwp1vi6kam2xrmgqrdpllvdirr-closure-info.drv
  /nix/store/8iplqh7zvh4fnccf99jrnp9sm02imk98-check-vars.drv
error: path '/nix/store/a6hhs9d7jbgagh35p5g20fwn9bgpwy1s-check-vars' is not valid
error: Cannot build '/nix/store/8iplqh7zvh4fnccf99jrnp9sm02imk98-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/a6hhs9d7jbgagh35p5g20fwn9bgpwy1s-check-vars