racer failed with recent rust sources

[Dushistov]

The last racer command was:

$ cd /home/evgeniy/projects/rust-infra/rust/src/librustc_typeck/
$ export CARGO_HOME=/home/evgeniy/.cargo
$ export RUST_SRC_PATH=/home/evgeniy/.multirust/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src
$ /home/evgeniy/.cargo/bin/racer find-definition 182 39 /home/evgeniy/projects/rust-infra/rust/src/librustc_typeck/astconv.rs /tmp/racer7421PgP

This command terminated with exit code 101.

No output on stdout.

stderr:

thread 'main' panicked at 'failed parsing impl name', /buildslave/rust-buildbot/slave/beta-dist-rustc-linux/build/src/libcore/option.rs:715
note: Run with `RUST_BACKTRACE=1` for a backtrace.

The temporary file will have been deleted. You should be
able to reproduce the same output from racer with the
following command:

$ CARGO_HOME=/home/evgeniy/.cargo RUST_SRC_PATH=/home/evgeniy/.multirust/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src /home/evgeniy/.cargo/bin/racer find-definition 182 39 /home/evgeniy/projects/rust-infra/rust/src/librustc_typeck/astconv.rs

Please report bugs on GitHub.

[TedDriggs]

@Dushistov are you still able to repro this?