Auto merge of #54601 - cuviper:prep-1.31, r=Mark-Simulacrum

Bump to 1.31.0 and bootstrap from 1.30 beta

Closes #54594.

Author: bors

Diff for: src/bootstrap/channel.rs

@@ -24,7 +24,7 @@ use Build;
 use config::Config;
 
 // The version number
-pub const CFG_RELEASE_NUM: &str = "1.30.0";
+pub const CFG_RELEASE_NUM: &str = "1.31.0";
 
 pub struct GitInfo {
     inner: Option<Info>,

Diff for: src/liballoc/lib.rs

@@ -76,7 +76,6 @@
 
 #![cfg_attr(not(test), feature(fn_traits))]
 #![cfg_attr(not(test), feature(generator_trait))]
-#![cfg_attr(not(stage0), feature(nll))]
 #![cfg_attr(test, feature(test))]
 
 #![feature(allocator_api)]
@@ -87,8 +86,7 @@
 #![feature(box_syntax)]
 #![feature(cfg_target_has_atomic)]
 #![feature(coerce_unsized)]
-#![cfg_attr(stage0, feature(const_fn))]
-#![cfg_attr(not(stage0), feature(min_const_fn))]
+#![feature(min_const_fn)]
 #![feature(core_intrinsics)]
 #![feature(custom_attribute)]
 #![feature(dropck_eyepatch)]
@@ -99,6 +97,7 @@
 #![feature(lang_items)]
 #![feature(libc)]
 #![feature(needs_allocator)]
+#![feature(nll)]
 #![feature(optin_builtin_traits)]
 #![feature(pattern)]
 #![feature(pin)]

Diff for: src/liballoc/tests/lib.rs

@@ -11,8 +11,7 @@
 #![feature(allocator_api)]
 #![feature(alloc_system)]
 #![feature(box_syntax)]
-#![cfg_attr(stage0, feature(const_fn))]
-#![cfg_attr(not(stage0), feature(min_const_fn))]
+#![feature(min_const_fn)]
 #![feature(drain_filter)]
 #![feature(exact_size_is_empty)]
 #![feature(pattern)]

Diff for: src/liballoc_jemalloc/lib.rs

@@ -16,7 +16,7 @@
 #![feature(core_intrinsics)]
 #![feature(libc)]
 #![feature(linkage)]
-#![cfg_attr(not(stage0), feature(nll))]
+#![feature(nll)]
 #![feature(staged_api)]
 #![feature(rustc_attrs)]
 #![cfg_attr(dummy_jemalloc, allow(dead_code, unused_extern_crates))]
@@ -90,15 +90,13 @@ mod contents {
     // ABI
 
     #[rustc_std_internal_symbol]
-    #[cfg_attr(stage0, no_mangle)]
     pub unsafe extern fn __rde_alloc(size: usize, align: usize) -> *mut u8 {
         let flags = align_to_flags(align, size);
         let ptr = mallocx(size as size_t, flags) as *mut u8;
         ptr
     }
 
     #[rustc_std_internal_symbol]
-    #[cfg_attr(stage0, no_mangle)]
     pub unsafe extern fn __rde_dealloc(ptr: *mut u8,
                                        size: usize,
                                        align: usize) {
@@ -107,7 +105,6 @@ mod contents {
     }
 
     #[rustc_std_internal_symbol]
-    #[cfg_attr(stage0, no_mangle)]
     pub unsafe extern fn __rde_realloc(ptr: *mut u8,
                                        _old_size: usize,
                                        align: usize,
@@ -118,7 +115,6 @@ mod contents {
     }
 
     #[rustc_std_internal_symbol]
-    #[cfg_attr(stage0, no_mangle)]
     pub unsafe extern fn __rde_alloc_zeroed(size: usize, align: usize) -> *mut u8 {
         let ptr = if align <= MIN_ALIGN && align <= size {
             calloc(size as size_t, 1) as *mut u8

Diff for: src/liballoc_system/lib.rs

@@ -17,7 +17,7 @@
 
 #![feature(allocator_api)]
 #![feature(core_intrinsics)]
-#![cfg_attr(not(stage0), feature(nll))]
+#![feature(nll)]
 #![feature(staged_api)]
 #![feature(rustc_attrs)]
 #![cfg_attr(any(unix, target_os = "cloudabi", target_os = "redox"), feature(libc))]

Diff for: src/libarena/lib.rs

@@ -26,7 +26,7 @@
 #![feature(alloc)]
 #![feature(core_intrinsics)]
 #![feature(dropck_eyepatch)]
-#![cfg_attr(not(stage0), feature(nll))]
+#![feature(nll)]
 #![feature(raw_vec_internals)]
 #![cfg_attr(test, feature(test))]
 

Diff for: src/libcore/lib.rs

@@ -91,7 +91,7 @@
 #![feature(lang_items)]
 #![feature(link_llvm_intrinsics)]
 #![feature(never_type)]
-#![cfg_attr(not(stage0), feature(nll))]
+#![feature(nll)]
 #![feature(exhaustive_patterns)]
 #![feature(macro_at_most_once_rep)]
 #![feature(no_core)]

Diff for: src/libcore/mem.rs

@@ -285,19 +285,10 @@ pub fn forget<T>(t: T) {
 /// [alignment]: ./fn.align_of.html
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[cfg(not(stage0))]
 pub const fn size_of<T>() -> usize {
     intrinsics::size_of::<T>()
 }
 
-#[inline]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[cfg(stage0)]
-/// Ceci n'est pas la documentation
-pub const fn size_of<T>() -> usize {
-    unsafe { intrinsics::size_of::<T>() }
-}
-
 /// Returns the size of the pointed-to value in bytes.
 ///
 /// This is usually the same as `size_of::<T>()`. However, when `T` *has* no
@@ -343,20 +334,10 @@ pub fn size_of_val<T: ?Sized>(val: &T) -> usize {
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[rustc_deprecated(reason = "use `align_of` instead", since = "1.2.0")]
-#[cfg(not(stage0))]
 pub fn min_align_of<T>() -> usize {
     intrinsics::min_align_of::<T>()
 }
 
-#[inline]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_deprecated(reason = "use `align_of` instead", since = "1.2.0")]
-#[cfg(stage0)]
-/// Ceci n'est pas la documentation
-pub fn min_align_of<T>() -> usize {
-    unsafe { intrinsics::min_align_of::<T>() }
-}
-
 /// Returns the [ABI]-required minimum alignment of the type of the value that `val` points to.
 ///
 /// Every reference to a value of the type `T` must be a multiple of this number.
@@ -395,19 +376,10 @@ pub fn min_align_of_val<T: ?Sized>(val: &T) -> usize {
 /// ```
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[cfg(not(stage0))]
 pub const fn align_of<T>() -> usize {
     intrinsics::min_align_of::<T>()
 }
 
-#[inline]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[cfg(stage0)]
-/// Ceci n'est pas la documentation
-pub const fn align_of<T>() -> usize {
-    unsafe { intrinsics::min_align_of::<T>() }
-}
-
 /// Returns the [ABI]-required minimum alignment of the type of the value that `val` points to.
 ///
 /// Every reference to a value of the type `T` must be a multiple of this number.

Diff for: src/libcore/nonzero.rs

@@ -14,8 +14,7 @@ use ops::CoerceUnsized;
 
 /// A wrapper type for raw pointers and integers that will never be
 /// NULL or 0 that might allow certain optimizations.
-#[cfg_attr(stage0, lang = "non_zero")]
-#[cfg_attr(not(stage0), rustc_layout_scalar_valid_range_start(1))]
+#[rustc_layout_scalar_valid_range_start(1)]
 #[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
 #[repr(transparent)]
 pub(crate) struct NonZero<T>(pub(crate) T);