Merge from rustc

2 files changed, 8 insertions, 2 deletions

diff --git a/library/std/src/sys/unix/fd.rs b/library/std/src/sys/unix/fd.rs
index dbaa3c33e2e..ab57fba6c9f 100644
--- a/library/std/src/sys/unix/fd.rs
+++ b/library/std/src/sys/unix/fd.rs
@@ -284,6 +284,10 @@ impl<'a> Read for &'a FileDesc {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         (**self).read(buf)
     }
+
+    fn read_buf(&mut self, cursor: BorrowedCursor<'_>) -> io::Result<()> {
+        (**self).read_buf(cursor)
+    }
 }
 
 impl AsInner<OwnedFd> for FileDesc {
diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs
index 692ff0cbca6..489af776798 100644
--- a/library/std/src/thread/mod.rs
+++ b/library/std/src/thread/mod.rs
@@ -124,8 +124,10 @@
 //!
 //! ## Stack size
 //!
-//! The default stack size is platform-dependent and subject to change. Currently it is 2MB on all
-//! Tier-1 platforms. There are two ways to manually specify the stack size for spawned threads:
+//! The default stack size is platform-dependent and subject to change.
+//! Currently, it is 2 MiB on all Tier-1 platforms.
+//!
+//! There are two ways to manually specify the stack size for spawned threads:
 //!
 //! * Build the thread with [`Builder`] and pass the desired stack size to [`Builder::stack_size`].
 //! * Set the `RUST_MIN_STACK` environment variable to an integer representing the desired stack