[pbs-devel] [PATCH proxmox-backup 1/1] Better explain the situations where it makes sense to adapt the rustup configuration

[Laurențiu Leahu-Vlăducu]

This patches adds some explanations about the situations where it makes sense to adapt the rustup configuration.
While this is not necessary if the Debian rustc package is used, it makes sense in case a newer / beta / nightly
compiler should be used for testing. The current documentation was worded in such a way that it sounded
as if rustup should always be set, which is not necessary unless additional compilers have to be used.

This patch replaces "[PATCH proxmox-backup] Remove mentioning rustup in README.rst because it's no longer needed"
as discussed here: https://lists.proxmox.com/pipermail/pbs-devel/2024-December/012105.html

Signed-off-by: Laurențiu Leahu-Vlăducu <l.leahu-vladucu at proxmox.com>
---
 README.rst | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.rst b/README.rst
index 0caa9874..81957533 100644
--- a/README.rst
+++ b/README.rst
@@ -5,8 +5,10 @@ Build & Release Notes
 ``rustup`` Toolchain
 ====================
 
-We normally want to build with the ``rustc`` Debian package. To do that
-you can set the following ``rustup`` configuration:
+We normally want to build with the ``rustc`` Debian package (see below). If you still want to
+use ``rustup`` for other reasons (e.g. to easily switch between the official
+stable, beta, and nightly compilers), you should set the following ``rustup`` configuration
+to use the Debian-provided ``rustc`` compiler by default:
 
     # rustup toolchain link system /usr
     # rustup default system
-- 
2.39.5