Does vim-racer[0] not work for you? I don't exactly know what you mean by "good autocomplete", but if you are more specific, then maybe we can help you a little more? :-)
FWIW, my Rust setup in vim is mostly the following plugins:
* NERDCommenter, for commenting stuff
* rust.vim, for general rust things (like integration with rustfmt, playground, and the next two plugins)
* tagbar, for showing the list of tags (of the ctags-esque sense) in a sidebar.
FWIW, my Rust setup in vim is mostly the following plugins:
* NERDCommenter, for commenting stuff
* rust.vim, for general rust things (like integration with rustfmt, playground, and the next two plugins)
* tagbar, for showing the list of tags (of the ctags-esque sense) in a sidebar.
* syntastic, for on-the-go syntax checking.
[0]: https://github.com/racer-rust/vim-racer