Rollup merge of rust-lang#134155 - sthibaul:unsafe_op_in_unsafe_fn, r=tgross35

Forbid `unsafe_op_in_unsafe_fn` for Hurd

Tracking issue rust-lang#127747

Author: matthiaskrgr

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

@@ -1,6 +1,7 @@
 //! Hurd-specific definitions
 
 #![stable(feature = "raw_ext", since = "1.1.0")]
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 pub mod fs;
 pub mod raw;