these 2 derivations will be built:
  /nix/store/3dipj6mn6fmpsjdgkfnz09rghb91wqjp-closure-info.drv
  /nix/store/xc99988vbkxr0ljz7f3d41ivgfknfvm3-check-vars.drv
error: path '/nix/store/1c3qb770rqkc2pnc5277hr09hgi2c20s-check-vars' is not valid
error: Cannot build '/nix/store/xc99988vbkxr0ljz7f3d41ivgfknfvm3-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/1c3qb770rqkc2pnc5277hr09hgi2c20s-check-vars