these 2 derivations will be built:
  /nix/store/i6438rwdp4l9gdb2rp7x83ain3yhpzpx-closure-info.drv
  /nix/store/z296fynirr33bzybnradgln9swsh7mjw-check-vars.drv
error: path '/nix/store/pq4f31s7248zmrmxyhzs4fkwx03bb0ra-check-vars' is not valid
error: Cannot build '/nix/store/z296fynirr33bzybnradgln9swsh7mjw-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/pq4f31s7248zmrmxyhzs4fkwx03bb0ra-check-vars