these 2 derivations will be built:
  /nix/store/y7xzagmbki9inlhi02m65sx3r5vhi921-closure-info.drv
  /nix/store/yi4kalin0pvv2rqbxy56c8y15fsnvvxw-check-vars.drv
error: path '/nix/store/jsh66l9i7rkbipswvznvxcsamjf20xy7-check-vars' is not valid
error: Cannot build '/nix/store/yi4kalin0pvv2rqbxy56c8y15fsnvvxw-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/jsh66l9i7rkbipswvznvxcsamjf20xy7-check-vars