Auto merge of #140646 - tgross35:rollup-z3hjbm6, r=tgross35

Rollup of 6 pull requests

Successful merges:

 - #137280 (stabilize ptr::swap_nonoverlapping in const)
 - #140457 (Use target-cpu=z13 on s390x codegen const vector test)
 - #140619 (Small adjustments to `check_attribute_safety` to make the logic more obvious)
 - #140625 (Suggest `retain_mut` over `retain` as `Vec::extract_if` alternative)
 - #140627 (Allow linking rustc and rustdoc against the same single tracing crate)
 - #140630 (Async drop source info fix for proxy-drop-coroutine)

r? `@ghost`
`@rustbot` modify labels: rollup

tests/ui/consts/missing_span_in_backtrace.rs

@@ -1,7 +1,5 @@
 //@ compile-flags: -Z ui-testing=no
 
-
-#![feature(const_swap_nonoverlapping)]
 use std::{
     mem::{self, MaybeUninit},
     ptr,

tests/ui/consts/missing_span_in_backtrace.stderr

@@ -1,11 +1,11 @@
 error[E0080]: evaluation of constant value failed
-  --> $DIR/missing_span_in_backtrace.rs:16:9
+  --> $DIR/missing_span_in_backtrace.rs:14:9
    |
-16 | /         ptr::swap_nonoverlapping(
-17 | |             &mut ptr1 as *mut _ as *mut MaybeUninit<u8>,
-18 | |             &mut ptr2 as *mut _ as *mut MaybeUninit<u8>,
-19 | |             mem::size_of::<&i32>(),
-20 | |         );
+14 | /         ptr::swap_nonoverlapping(
+15 | |             &mut ptr1 as *mut _ as *mut MaybeUninit<u8>,
+16 | |             &mut ptr2 as *mut _ as *mut MaybeUninit<u8>,
+17 | |             mem::size_of::<&i32>(),
+18 | |         );
    | |_________^ unable to copy parts of a pointer from memory at ALLOC0
    |
 note: inside `swap_nonoverlapping::<MaybeUninit<u8>>`

tests/ui/rust-2024/unsafe-attributes/auxiliary/safe_attr.rs

@@ -0,0 +1,7 @@
+extern crate proc_macro;
+use proc_macro::TokenStream;
+
+#[proc_macro_attribute]
+pub fn safe(_attr: TokenStream, item: TokenStream) -> TokenStream {
+    item
+}

tests/ui/rust-2024/unsafe-attributes/safe-proc-macro-attribute.rs

@@ -0,0 +1,22 @@
+//! Anti-regression test for `#[safe]` proc-macro attribute.
+
+//@ revisions: unknown_attr proc_macro_attr
+//@[proc_macro_attr] proc-macro: safe_attr.rs
+//@[proc_macro_attr] check-pass
+
+#![warn(unsafe_attr_outside_unsafe)]
+
+#[cfg(proc_macro_attr)]
+extern crate safe_attr;
+#[cfg(proc_macro_attr)]
+use safe_attr::safe;
+
+#[safe]
+//[unknown_attr]~^ ERROR cannot find attribute `safe` in this scope
+fn foo() {}
+
+#[safe(no_mangle)]
+//[unknown_attr]~^ ERROR cannot find attribute `safe` in this scope
+fn bar() {}
+
+fn main() {}

tests/ui/rust-2024/unsafe-attributes/safe-proc-macro-attribute.unknown_attr.stderr

@@ -0,0 +1,14 @@
+error: cannot find attribute `safe` in this scope
+  --> $DIR/safe-proc-macro-attribute.rs:18:3
+   |
+LL | #[safe(no_mangle)]
+   |   ^^^^
+
+error: cannot find attribute `safe` in this scope
+  --> $DIR/safe-proc-macro-attribute.rs:14:3
+   |
+LL | #[safe]
+   |   ^^^^
+
+error: aborting due to 2 previous errors
+