More aggressively point people at Rust version docs (#5782)

2 files changed, 5 insertions, 1 deletions

diff --git a/docs/faq.rst b/docs/faq.rst
index 7eec9c53b..4123a1cf8 100644
--- a/docs/faq.rst
+++ b/docs/faq.rst
@@ -123,7 +123,9 @@ Installing ``cryptography`` fails with ``error: Can not find Rust compiler``
 Building ``cryptography`` from source requires you have :ref:`Rust installed
 and available<installation:Rust>` on your ``PATH``. You may be able to fix this
 by upgrading to a newer version of ``pip`` which will install a pre-compiled
-``cryptography`` wheel. If not, you'll need to install Rust.
+``cryptography`` wheel. If not, you'll need to install Rust. Follow the
+:ref:`instructions<installation:Rust>` to ensure you install a recent Rust
+version.
 
 For the current release *only* you can temporarily bypass the requirement to
 have Rust installed by setting the ``CRYPTOGRAPHY_DONT_BUILD_RUST`` environment
diff --git a/docs/installation.rst b/docs/installation.rst
index 7edd92432..e167f5af1 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -273,6 +273,8 @@ Building ``cryptography`` requires having a working Rust toolchain. The current
 minimum supported Rust version is 1.45.0.
 
 Instructions for installing Rust can be found on `the Rust Project's website`_.
+We recommend installing Rust with ``rustup`` (as documented by the Rust
+Project) in order to ensure you have a recent version.
 
 .. _`Homebrew`: https://brew.sh
 .. _`MacPorts`: https://www.macports.org