[nvim] improve rust support

private_dot_config/nvim/init.vim.tmpl

@@ -208,7 +208,12 @@ augroup Racer
     autocmd FileType rust nmap <buffer> gD <Plug>(rust-doc)
 augroup END
 
-let g:ale_linters = {'rust': ['analyzer']}
+let g:ale_linters = {'rust': ['analyzer', 'cargo', 'rls', 'rustc']}
+let g:ale_fixers = {
+            \   '*': ['remove_trailing_lines', 'trim_whitespace'],
+            \   'rust': ['rustfmt'],
+            \}
+let g:ale_fix_onsave = 1
 
 autocmd BufRead Cargo.toml call crates#toggle()
 {{- end }}