Auto merge of #53441 - toidiu:ak-fix53419, r=nikomatsakis

fix for late-bound regions

Fix for https://github.com/rust-lang/rust/issues/53419

r? @nikomatsakis

src/librustc_errors/lib.rs

@@ -17,6 +17,7 @@
 #![feature(range_contains)]
 #![cfg_attr(unix, feature(libc))]
 #![cfg_attr(not(stage0), feature(nll))]
+#![cfg_attr(not(stage0), feature(infer_outlives_requirements))]
 #![feature(optin_builtin_traits)]
 
 extern crate atty;