Constant rustc_driver::ICE_REPORT_COMPILER_FLAGS_EXCLUDE

const ICE_REPORT_COMPILER_FLAGS_EXCLUDE: &'static [&'static str] = &["metadata", "extra-filename"]

🔬 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?