Auto merge of rust-lang#95711 - Dylan-DPC:rollup-ujss3oi, r=Dylan-DPC

Rollup of 4 pull requests

Successful merges:

 - rust-lang#95659 (Rely on #[link] attribute for unwind on Fuchsia.)
 - rust-lang#95684 (rustdoc: Fix item info display overflow)
 - rust-lang#95693 (interp: pass TyCtxt to Machine methods that do not take InterpCx)
 - rust-lang#95699 (fix: Vec leak when capacity is 0)

Failed merges:

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

Author: bors

alloc/src/raw_vec.rs

@@ -168,7 +168,8 @@ impl<T, A: Allocator> RawVec<T, A> {
 
     #[cfg(not(no_global_oom_handling))]
     fn allocate_in(capacity: usize, init: AllocInit, alloc: A) -> Self {
-        if mem::size_of::<T>() == 0 {
+        // Don't allocate here because `Drop` will not deallocate when `capacity` is 0.
+        if mem::size_of::<T>() == 0 || capacity == 0 {
             Self::new_in(alloc)
         } else {
             // We avoid `unwrap_or_else` here because it bloats the amount of

unwind/build.rs

@@ -40,8 +40,6 @@ fn main() {
         // This is handled in the target spec with late_link_args_[static|dynamic]
     } else if target.contains("uwp-windows-gnu") {
         println!("cargo:rustc-link-lib=unwind");
-    } else if target.contains("fuchsia") {
-        println!("cargo:rustc-link-lib=unwind");
     } else if target.contains("haiku") {
         println!("cargo:rustc-link-lib=gcc_s");
     } else if target.contains("redox") {