these 2 derivations will be built:
  /nix/store/f5y4fhnvpv3kf2h1q22wc0vxf50ka51r-closure-info.drv
  /nix/store/iyqbmla19ajaavbc7ljs6h7si5mdh2lh-check-vars.drv
error: path '/nix/store/iz1q3xx9kd4nvsdndig65a5037ppa3ij-check-vars' is not valid
error: Cannot build '/nix/store/iyqbmla19ajaavbc7ljs6h7si5mdh2lh-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/iz1q3xx9kd4nvsdndig65a5037ppa3ij-check-vars