add Rust package guidelines

_sources/contributor/guidelines.rst.txt

@@ -407,6 +407,8 @@ are necessary to satisfy bioconda policies:
 - the ``requirements/build`` keyword in ``meta.yaml`` should be changed to
   ``requirements/host``
 
+.. _c-cpp:
+
 C/C++
 -----
 
@@ -481,6 +483,80 @@ some ideas on what to try:
   <https://github.com/bioconda/bioconda-recipes/tree/master/recipes/soapdenovo>`_
   have many fixes to makefiles
 
+Rust
+----
+
+The Rust compiler is included with the special macro ``{{ compiler('rust') }}``. In addition, 
+if your package relies on the C/C++ compilers, either directly, or indirectly through 
+building dependencies, use the :ref:`macros for those compilers <c-cpp>` too. 
+
+Keeping in line with `conda-forge policies <https://conda-forge.org/docs/maintainer/adding_pkgs/#licenses-of-included-dependencies>`_, 
+all (Rust) dependencies of your package should have their license included in the package. 
+This can be done by including, and using, |cargo-bundle-licenses|_ in the build process. 
+However, make sure to include the license files in the package (see below).
+
+.. |cargo-bundle-licenses| replace:: ``cargo-bundle-licenses``
+.. _cargo-bundle-licenses: https://github.com/sstadick/cargo-bundle-licenses
+
+Lastly, there are some Cargo flags that are recommended for making the build process 
+as reproducible as possible across different systems. |locked|_ ensures the builds is 
+deterministic by asserting that the exact same dependencies and versions are used as in 
+the ``Cargo.lock`` file. |no-track|_ to prevent Cargo from tracking the installed binaries, 
+ensuring a clean and reproducible build environment for the package. ``--root $PREFIX`` 
+to install the package into the correct place in the Conda environment. ``--path`` to 
+specify the path to the package source code (usually the current directory ``.``).
+
+.. |locked| replace:: ``--locked``
+.. _locked: https://doc.rust-lang.org/cargo/commands/cargo-install.html#manifest-options
+.. |no-track| replace:: ``--no-track``
+.. _no-track: https://doc.rust-lang.org/cargo/commands/cargo-install.html#install-options
+
+Wrapping it all up, a typical Rust recipe would look like this:
+
+.. code-block:: yaml
+
+    {% set version = "0.1.0" %}
+    {% set name = "mypackage" %}
+
+    package:
+      name: {{ name }}
+      version: {{ version }}
+
+    source:
+      url: https://github.com/USERNAME/{{ name }}/archive/{{ version }}.tar.gz
+      sha256: 1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef
+
+    build:
+      number: 0
+      run_exports:
+        - {{ pin_subpackage('mypackage', max_pin="x.x") }}
+      script:
+        - cargo-bundle-licenses --format yaml --output THIRDPARTY.yml
+        - cargo install -v --locked --no-track --root $PREFIX --path .
+
+    requirements:
+      build:
+        - {{ compiler('rust') }}
+        - cargo-bundle-licenses
+        # - {{ compiler('c') }} add these C/C++ compilers if needed
+        # - {{ compiler('cxx') }}
+
+    test:
+      commands:
+        - mypackage --version
+
+    about:
+      home: https://example.com
+      license: MIT
+      license_file: 
+        - LICENSE         # the license file for your package
+        - THIRDPARTY.yml  # this file is generated by cargo-bundle-licenses
+      summary: A Rust package
+
+    extra:
+      recipe-maintainers:
+        - @username  # your GitHub username
+
 Haskell
 -------