error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
--> $DIR/pathless-extern-unstable.rs:7:9
|
LL | pub use rustc_middle;
| ^^^^^^^^^^^^
= note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
= help: add `#![feature(rustc_private)]` to the crate attributes to enable
error: aborting due to previous error
For more information about this error, try `rustc --explain E0658`.
