Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools. This update was made based on information from https://repology.org/metapackage/ocaml4.06.1-rresult/versions
Rresult is an OCaml module for handling computation results and errors in an explicit and declarative manner without resorting to exceptions. Homepage: http://erratique.ch/software/rresult
