Update

ftplugin/javascript.vim

@@ -1,8 +0,0 @@
-if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'javascript') == -1
-  
-setlocal suffixesadd+=.js
-if (v:version < 704 || (v:version == 704 && !has('patch002'))) && exists('&regexpengine')
-  set re=1
-end
-
-endif

ftplugin/rust.vim

@@ -195,6 +195,11 @@ let b:undo_ftplugin = "
 
 " }}}1
 
+" Code formatting on save
+if get(g:, "rustfmt_autosave", 0)
+	autocmd BufWritePre *.rs call rustfmt#Format()
+endif
+
 augroup END
 
 let &cpo = s:save_cpo