Rust 1.72 compat

Signed-off-by: Asahi Lina <lina@asahilina.net>

Author: hoshinolina

rust/alloc/alloc.rs

@@ -335,6 +335,7 @@ unsafe fn exchange_malloc(size: usize, align: usize) -> *mut u8 {
     }
 }
 
+#[cfg(not(version("1.72")))]
 // # Allocation error handler
 
 #[cfg(not(no_global_oom_handling))]

rust/alloc/lib.rs

@@ -110,6 +110,7 @@
 #![feature(ascii_char)]
 #![feature(assert_matches)]
 #![feature(async_iterator)]
+#![feature(cfg_version)]
 #![feature(coerce_unsized)]
 #![feature(const_align_of_val)]
 #![feature(const_box)]