Fine tune Rust and Cargo related packages

configuration.org

@@ -3032,13 +3032,30 @@ Because that’s still my favourite language.
   :mode "\\.csv\\'")
 #+end_src
 
-** ~rust-mode~
+** Rust
+
+*** ~rust-mode~
 
 #+begin_src emacs-lisp
 (use-package rust-mode
   :mode "\\.rs\\'")
+#+end_src
+
+*** ~cargo~ and ~cargo-mode~ for Cargo usage
+
+#+begin_src emacs-lisp
 (use-package cargo)
-(use-package flycheck-rust)
+
+(use-package cargo-mode
+  :mode "Cargo\\.toml\\'")
+#+end_src
+
+*** ~flycheck-rust~
+
+#+begin_src emacs-lisp
+(use-package flycheck-rust
+  :hook
+  (flycheck-mode . #'flycheck-rust-setup))
 #+end_src
 
 ** ~arduino-mode~