Auto merge of #119211 - rust-lang:pa-master-1.77, r=Mark-Simulacrum

bors · bors · commit f6fda20b7e7f · 2023-12-23T00:26:47.000Z
Bump stage0 to 1.76 beta

r? `@Mark-Simulacrum`
diff --git a/src/lib.rs b/src/lib.rs
@@ -11,7 +11,6 @@
 #![feature(round_ties_even)]
 #![feature(let_chains)]
 #![feature(lint_reasons)]
-#![cfg_attr(bootstrap, feature(trait_upcasting))]
 // Configure clippy and other lints
 #![allow(
     clippy::collapsible_else_if,
