these 2 derivations will be built:
  /nix/store/vxrm63z4cbgck0d9zf0p8hm2w7gqpsv5-closure-info.drv
  /nix/store/lvzisai1qak64n3qx5xsny80v2nmgx64-check-vars.drv
error: path '/nix/store/sfyclmg2327c4is03pym4inrnxys8hbd-check-vars' is not valid
error: Cannot build '/nix/store/lvzisai1qak64n3qx5xsny80v2nmgx64-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/sfyclmg2327c4is03pym4inrnxys8hbd-check-vars