v0.31 Compile failed

[Matrix-Zhang]

Compiling libracerd v0.3.1 (file:///home/matrix/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/racerd)
error: type alias is never used: ListCompletionsResponse
--> /home/matrix/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/racerd/target/release/build/libracerd-ccd438395932b4cf/out/http/completion.rs:281:1
|
281 | type ListCompletionsResponse = Vec;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: lint level defined here
--> src/lib.rs:9:9
|
9 | #![deny(warnings)]
| ^^^^^^^^

[little-dude]

@Matrix-Zhang here is a quick&dirty workaround if you want rust complettion:

cd ${YOUR_VIM_PLUGIN_DIRECTORY}/YouCompleteMe/third_party/ycmd/third_party
# replace the racer directory by my fork, which contains the fix
rm -rf racerd
git clone https://github.com/little-dude/racerd/
cd ../../..
# install rust completion for ycm
python install.py --racer-completer
# cleanup so that your plugin manager won't complain next time you update ycm
git reset --hard origin/master   # not sure if this is necessary, but it does not hurt
cd third_party/ycmd 
git submodule update --init

Edit: this uses the racerd master branch so there may be issues, but it's been working fine for me so far. As I said, it's a dirty workaround, waiting for a ycm or racerd maintainer to chime in.

Edit2: actually a much better/simpler workaround would be to remove the #![deny(warnings)].