Simplify the folder structure

languages/rust.el

@@ -0,0 +1,18 @@
+(use-package racer
+  :ensure t
+  :requires (racer flycheck-rust))
+
+(defun activate-rust-mode ()
+  "All things for Rust mode"
+  (interactive)
+  (set-indent 4)
+  (column-enforce-n 99)
+
+  ;; Company list override
+  (add-to-list (make-local-variable 'company-backends)
+               '(company-capf company-yasnippet))
+  )
+
+(add-hook 'rust-mode-hook 'activate-rust-mode)
+(add-hook 'rust-mode-hook 'racer-mode)
+(add-hook 'rust-mode-hook 'flycheck-rust-setup)