//! [rustc guide]: https://rust-lang.github.io/rustc-guide/hir.html
#![feature(crate_visibility_modifier)]
-#![feature(const_fn)]
+#![feature(const_fn)] // For the unsizing cast on `&[]`
#![feature(in_band_lifetimes)]
#![feature(specialization)]
#![recursion_limit = "256"]