#![needs_allocator]
#![warn(deprecated_in_future)]
+#![warn(missing_docs)]
#![warn(missing_debug_implementations)]
#![deny(intra_doc_link_resolution_failure)] // rustdoc is run without -D warnings
#![feature(fmt_internals)]
#![feature(fn_traits)]
#![feature(fundamental)]
-#![feature(futures_api)]
#![feature(lang_items)]
#![feature(libc)]
#![feature(needs_allocator)]