Auto merge of #2551 - RalfJung:rustup, r=RalfJung

rustup

Cc https://github.com/rust-lang/rust/issues/101867

cargo-miri/src/main.rs

@@ -1,4 +1,3 @@
-#![feature(let_else)]
 #![allow(clippy::useless_format, clippy::derive_partial_eq_without_eq, rustc::internal)]
 
 #[macro_use]

rust-version

@@ -1 +1 @@
-5197c96c49fc3b7de3ce9a31f7cc62d2cbd1f70c
+2019147c5642c08cdb9ad4cacd97dd1fa4ffa701

src/lib.rs

@@ -3,7 +3,6 @@
 #![feature(map_try_insert)]
 #![feature(never_type)]
 #![feature(try_blocks)]
-#![feature(let_else)]
 #![feature(io_error_more)]
 #![feature(int_log)]
 #![feature(variant_count)]

src/shims/unix/sync.rs

@@ -1,7 +1,7 @@
 use std::time::SystemTime;
 
 use rustc_hir::LangItem;
-use rustc_middle::ty::{layout::TyAndLayout, query::TyCtxtAt, subst::Subst, Ty};
+use rustc_middle::ty::{layout::TyAndLayout, query::TyCtxtAt, Ty};
 
 use crate::concurrency::thread::Time;
 use crate::*;

tests/pass/concurrency/sync.rs

@@ -81,7 +81,7 @@ fn check_conditional_variables_timed_wait_notimeout() {
         cvar.notify_one();
     });
 
-    let (_guard, timeout) = cvar.wait_timeout(guard, Duration::from_millis(500)).unwrap();
+    let (_guard, timeout) = cvar.wait_timeout(guard, Duration::from_millis(1000)).unwrap();
     assert!(!timeout.timed_out());
     handle.join().unwrap();
 }