Macro syntax::register_diagnostic [] [src]

macro_rules! register_diagnostic {
    ($code:tt, $description:tt) => { ... };
    ($code:tt) => { ... };
}
🔬 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?