fix build of alloc with no_global_oom_handling

Author: joboet

library/alloc/src/boxed/convert.rs

@@ -1,4 +1,5 @@
 use core::any::Any;
+#[cfg(not(no_global_oom_handling))]
 use core::clone::TrivialClone;
 use core::error::Error;
 use core::mem;

library/alloc/src/rc.rs

@@ -244,8 +244,7 @@
 use core::any::Any;
 use core::cell::Cell;
 #[cfg(not(no_global_oom_handling))]
-use core::clone::CloneToUninit;
-use core::clone::TrivialClone;
+use core::clone::{CloneToUninit, TrivialClone};
 use core::cmp::Ordering;
 use core::hash::{Hash, Hasher};
 use core::intrinsics::abort;

library/alloc/src/slice.rs

@@ -13,6 +13,7 @@
 #![cfg_attr(test, allow(unused_imports, dead_code))]
 
 use core::borrow::{Borrow, BorrowMut};
+#[cfg(not(no_global_oom_handling))]
 use core::clone::TrivialClone;
 #[cfg(not(no_global_oom_handling))]
 use core::cmp::Ordering::{self, Less};
@@ -89,6 +90,7 @@ use crate::vec::Vec;
 #[allow(unreachable_pub)] // cfg(test) pub above
 pub(crate) mod hack {
     use core::alloc::Allocator;
+    #[cfg(not(no_global_oom_handling))]
     use core::clone::TrivialClone;
 
     use crate::boxed::Box;

library/alloc/src/sync.rs

@@ -11,6 +11,7 @@
 use core::any::Any;
 #[cfg(not(no_global_oom_handling))]
 use core::clone::CloneToUninit;
+#[cfg(not(no_global_oom_handling))]
 use core::clone::TrivialClone;
 use core::cmp::Ordering;
 use core::hash::{Hash, Hasher};

library/alloc/src/vec/mod.rs

@@ -53,6 +53,7 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
+#[cfg(not(no_global_oom_handling))]
 use core::clone::TrivialClone;
 #[cfg(not(no_global_oom_handling))]
 use core::cmp;