rustup (and account for stabilization)

rust-version

@@ -1 +1 @@
-255c0338dc0b02f833fb1a816d76febd50c399c4
+0e9e4083100aa3ebf09b8f1ace0348cb37475eb9

src/shims/intrinsics.rs

@@ -1,5 +1,4 @@
 use std::iter;
-use std::convert::TryFrom;
 
 use rustc_attr as attr;
 use rustc_ast::ast::FloatTy;

tests/compile-fail/rc_as_ptr.rs

@@ -1,6 +1,5 @@
 // This should fail even without validation
 // compile-flags: -Zmiri-disable-validation
-#![feature(weak_into_raw)]
 
 use std::rc::{Rc, Weak};
 use std::ptr;

tests/run-pass/rc.rs

@@ -1,4 +1,3 @@
-#![feature(weak_into_raw)]
 #![feature(new_uninit)]
 #![feature(get_mut_unchecked)]