Unrolled build for rust-lang#127873

Rollup merge of rust-lang#127873 - workingjubilee:forbid-unsafe-ops-for-kmc-solid, r=Amanieu

kmc-solid: `#![forbid(unsafe_op_in_unsafe_fn)]`

The path logic _should_ handle the forbiddance in the itron sources correctly, despite them being an "out-of-line" module.

library/std/src/os/solid/io.rs

@@ -44,7 +44,6 @@
 //!
 //! [`BorrowedFd<'a>`]: crate::os::solid::io::BorrowedFd
 
-#![deny(unsafe_op_in_unsafe_fn)]
 #![unstable(feature = "solid_ext", issue = "none")]
 
 use crate::fmt;

library/std/src/os/solid/mod.rs

@@ -1,4 +1,5 @@
 #![stable(feature = "rust1", since = "1.0.0")]
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 pub mod ffi;
 pub mod io;

library/std/src/sys/pal/solid/mod.rs

@@ -1,6 +1,6 @@
 #![allow(dead_code)]
 #![allow(missing_docs, nonstandard_style)]
-#![deny(unsafe_op_in_unsafe_fn)]
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 pub mod abi;
 

library/std/src/sys/path/unsupported_backslash.rs

@@ -1,3 +1,4 @@
+#![forbid(unsafe_op_in_unsafe_fn)]
 use crate::ffi::OsStr;
 use crate::io;
 use crate::path::{Path, PathBuf, Prefix};

library/std/src/sys/sync/mutex/itron.rs

@@ -1,5 +1,6 @@
 //! Mutex implementation backed by μITRON mutexes. Assumes `acre_mtx` and
 //! `TA_INHERIT` are available.
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 use crate::sys::pal::itron::{
     abi,

library/std/src/sys/sync/rwlock/solid.rs

@@ -1,4 +1,5 @@
 //! A readers-writer lock implementation backed by the SOLID kernel extension.
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 use crate::sys::pal::{
     abi,