Function rustc::session::opt_span_bug_fmt [−][src]
fn opt_span_bug_fmt<S: Into<MultiSpan>>(
file: &'static str,
line: u32,
span: Option<S>,
args: Arguments
) -> !
🔬 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?