these 2 derivations will be built:
  /nix/store/07y348w5zb02g4g7pfbfl76kbn3h56jc-closure-info.drv
  /nix/store/qkxr7i5k1v0594dw3rhzr5kbvgyhv408-check-vars.drv
error: path '/nix/store/yxdr9ziq346ybg0nvdj526cc8l2zmsfd-check-vars' is not valid
error: Cannot build '/nix/store/qkxr7i5k1v0594dw3rhzr5kbvgyhv408-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/yxdr9ziq346ybg0nvdj526cc8l2zmsfd-check-vars