[nll] librustc_apfloat: enable feature(nll) for bootstrap

Author: memoryruins

src/librustc_apfloat/lib.rs

@@ -45,6 +45,7 @@
       html_root_url = "https://doc.rust-lang.org/nightly/")]
 #![forbid(unsafe_code)]
 
+#![cfg_attr(not(stage0), feature(nll))]
 #![feature(try_from)]
 // See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
 #[allow(unused_extern_crates)]