Constant rustc_incremental::persist::file_format::HEADER_FORMAT_VERSION[][src]

const HEADER_FORMAT_VERSION: u16 = 0
🔬 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?

Change this if the header format changes