title: Rust autocompletion not shown for items from the standard library
body: <p>I can't get working autocompletion on VS Code on Ubuntu 16.04.</p>
  
  <p>I've installed rustup from <a href="https://www.rustup.rs/" rel="nofollow noreferrer">https://www.rustup.rs/</a> and installed the "rust-lang.rust" package. This extension installed <code>rustfmt</code> and tried to use both <code>stable</code> and <code>nightly</code> toolchains.  </p>
  
  <p>If I type <code>std::</code> no suggestions are shown. Suggestions show on local <code>mod</code> import but not with the standard library. I tried to reinstall by removing via <code>uninstall.sh</code> and manually removing <code>~/.multirust</code> and <code>~/.cargo</code> and then installed again, but nothing changed.</p>
  
  <p>What did I do wrong?</p>