Foreign Type rustc::ty::OpaqueSliceContents

extern {
    type OpaqueSliceContents;
}

🔬 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?

A dummy type used to force Slice to by unsized without requiring fat pointers