Setup Rust Racer with multiple Rust versions

WC 238 / RT 2min

Guide to setup Rust Racer [code completion utility] with multiple/nightly Rust versions. This will let you navigate & jump to definition between Rust versions.

1) Install Rust version manager

https://github.com/sdepold/rsvm#installation

2) Install desired Rust version

rsvm install 0.12.0

3) Switch/use desired Rust version

rsvm use 0.12.0

4) rsvm - makes symbolic link to current rust version in

ls -la $HOME/.rsvm/current

total 56K
drwxrwxr-x  2 user user 4.0K Sep 14 21:31 test
drwxrwxr-x  4 user user 4.0K Sep 15 14:33 1.2.0
drwxrwxr-x  5 user user 4.0K Sep 15 14:48 .
drwxrwxr-x  8 user user 4.0K Sep 21 22:15 .git
drwx------ 24 user user 4.0K Sep 21 22:17 ..
-rw-rw-r--  1 user user 1.1K Sep 14 21:31 LICENSE
-rw-rw-r--  1 user user  324 Sep 14 21:31 CHANGELOG.md
-rw-rw-r--  1 user user  249 Sep 14 21:31 .travis.yml
-rw-rw-r--  1 user user 9.1K Sep 14 21:31 rsvm.sh
-rw-rw-r--  1 user user 2.1K Sep 14 21:31 rsvm.fish
-rw-rw-r--  1 user user 1.3K Sep 14 21:31 install.sh
-rw-rw-r--  1 user user 1.8K Sep 14 21:31 README.md
lrwxrwxrwx  1 user user   20 Sep 15 14:48 current -> /home/user/.rsvm/1.2.0

5) Export Rust source path to that symbolic link

export RUST_SRC_PATH="$HOME/.rsvm/current"

6) Install Rust racer

git clone https://github.com/phildawes/racer.git “$HOME/rust-racer”

7) Build Rust racer

cd $HOME/rust-racer; cargo build –release.

7) Install vim-racer vim plugin (Emacs, Kate available)

https://github.com/phildawes/racer#vim-integration

8) Define g:racer_cmd in .vimrc

let g:racer_cmd = “$HOME/rust-racer/target/release/racer”

9) Done

Enjoy multi Rust environment with code completion & goto-definition