Add ./x.py check src/{libstd,libtest,rustc}.

This currently only supports a limited subset of the full compilation,
but is likely 90% of what people will want and is possible without
building a full compiler (i.e., running LLVM). In theory, this means
that contributors who don't want to build LLVM now have an easy way to
compile locally, though running tests won't work.

1 files changed, 0 insertions, 5 deletions

diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs
index 37336a56d76..55d104b1826 100644
--- a/src/bootstrap/bin/rustc.rs
+++ b/src/bootstrap/bin/rustc.rs
@@ -125,11 +125,6 @@ fn main() {
             cmd.arg(format!("-Clinker={}", target_linker));
         }
 
-        // Pass down incremental directory, if any.
-        if let Ok(dir) = env::var("RUSTC_INCREMENTAL") {
-            cmd.arg(format!("-Zincremental={}", dir));
-        }
-
         let crate_name = args.windows(2)
             .find(|a| &*a[0] == "--crate-name")
             .unwrap();