Auto merge of #122754 - Mark-Simulacrum:bootstrap-bump, r=albertlarsan68

Bump to 1.78 bootstrap compiler

https://forge.rust-lang.org/release/process.html#master-bootstrap-update-t-2-day-tuesday

library/std/src/io/error.rs

@@ -83,7 +83,7 @@ impl From<alloc::ffi::NulError> for Error {
     }
 }
 
-#[stable(feature = "io_error_from_try_reserve", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "io_error_from_try_reserve", since = "1.78.0")]
 impl From<alloc::collections::TryReserveError> for Error {
     /// Converts `TryReserveError` to an error with [`ErrorKind::OutOfMemory`].
     ///

library/std/src/io/stdio.rs

@@ -453,7 +453,7 @@ impl Read for Stdin {
     }
 }
 
-#[stable(feature = "read_shared_stdin", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "read_shared_stdin", since = "1.78.0")]
 impl Read for &Stdin {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         self.lock().read(buf)

library/std/src/lib.rs

@@ -270,9 +270,6 @@
 //
 // Language features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(exhaustive_patterns))]
-#![cfg_attr(bootstrap, feature(platform_intrinsics))]
-#![cfg_attr(not(bootstrap), feature(min_exhaustive_patterns))]
 #![feature(alloc_error_handler)]
 #![feature(allocator_internals)]
 #![feature(allow_internal_unsafe)]
@@ -297,6 +294,7 @@
 #![feature(let_chains)]
 #![feature(link_cfg)]
 #![feature(linkage)]
+#![feature(min_exhaustive_patterns)]
 #![feature(min_specialization)]
 #![feature(must_not_suspend)]
 #![feature(needs_panic_runtime)]

library/std/src/sync/barrier.rs

@@ -81,7 +81,7 @@ impl Barrier {
     /// let barrier = Barrier::new(10);
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_barrier", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_barrier", since = "1.78.0")]
     #[must_use]
     #[inline]
     pub const fn new(n: usize) -> Barrier {

library/std/src/sys/thread_local/static_local.rs

@@ -12,8 +12,7 @@ pub macro thread_local_inner {
         #[inline] // see comments below
         #[deny(unsafe_op_in_unsafe_fn)]
         // FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_refs` lint
-        #[cfg_attr(bootstrap, allow(static_mut_ref))]
-        #[cfg_attr(not(bootstrap), allow(static_mut_refs))]
+        #[allow(static_mut_refs)]
         unsafe fn __getit(
             _init: $crate::option::Option<&mut $crate::option::Option<$t>>,
         ) -> $crate::option::Option<&'static $t> {