these 2 derivations will be built:
  /nix/store/3qvwars8abf3di5ya3rxcw7zyp6azcd0-closure-info.drv
  /nix/store/fz29b0vpaiicc7ailz7fxc27zq65rrgp-check-vars.drv
error: path '/nix/store/bmwwx93bzf5vxyxgf4rsp2n9jklrv63k-check-vars' is not valid
error: Cannot build '/nix/store/fz29b0vpaiicc7ailz7fxc27zq65rrgp-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bmwwx93bzf5vxyxgf4rsp2n9jklrv63k-check-vars