Unable to build clap

[venatiodecorus]

Following the basic example on the Rust site, I am unable to build my program as RLS fails to build clap. Everything builds fine when I run cargo build manually.

{"message":"src/librustc/ty/context.rs:530: node_id_to_type: no type for node `expr <Self>::SC_NEGATE_REQS (id=50338)`","code":null,"level":"error: internal compiler error","spans":[],"children":[],"rendered":"error: internal compiler error: src/librustc/ty/context.rs:530: node_id_to_type: no type for node `expr <Self>::SC_NEGATE_REQS (id=50338)`\n\n"}
thread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:588:9
note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
{"message":"aborting due to previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to previous error\n\n"}

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.33.0 (2aa4c46cf 2019-02-28) running on x86_64-unknown-linux-gnu

note: compiler flags: -C debuginfo=2 --crate-type lib

note: some of the compiler flags provided by cargo are hidden

[venatiodecorus]

This appears to be this issue: rust-lang/rls#1449