`OUT_DIR` not defined

[troplin]

I'm using a custom build step (build.rs) where a an additional source file is generated, which is the included with:

include!(concat!(env!("OUT_DIR"), "/grammar.rs"));

In the output of RLS I keep getting the error "environment variable OUT_DIR not defined"

[jrmuizel]

I see this as well and I rls used to work in this project (webrender/webrender)

[nrc]

We currently remove env vars from the environment before calling rustc (I thought we didn't do this for build scripts, but it seems like we do). We should be more careful about this and not remove env vars that Cargo has added. If that is too hard, we could just special case OUT_DIR for now.

This may or may not actually be easy. To get started look at the Environment struct and its uses in build.rs.

[nrc]

cc #238