Function rustc_driver::release_str[][src]

fn release_str() -> Option<&'static str>
🔬 This is a nightly-only experimental API. (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?

Returns a version string such as "0.12.0-dev".