Auto merge of rust-lang#138506 - fmease:rollup-ve4h2eq, r=fmease

Rollup of 9 pull requests

Successful merges:

 - rust-lang#134720 (Display valid crate types in error message for --crate-type flag)
 - rust-lang#137619 (Provide helpful diagnostics for shebang lookalikes)
 - rust-lang#138353 (remove must_use from <*const T>::expose_provenance)
 - rust-lang#138452 (Remove `RUN_CHECK_WITH_PARALLEL_QUERIES`)
 - rust-lang#138469 (remove comment regarding a removed test directive)
 - rust-lang#138477 (Deny impls for `BikeshedGuaranteedNoDrop`)
 - rust-lang#138485 (Rustc dev guide subtree update)
 - rust-lang#138487 (Pass `CI_JOB_DOC_URL` to Docker)
 - rust-lang#138495 (Take a break from reviews)

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

Author: bors

core/src/marker.rs

@@ -465,9 +465,13 @@ impl<T: ?Sized> Copy for &T {}
 /// Notably, this doesn't include all trivially-destructible types for semver
 /// reasons.
 ///
-/// Bikeshed name for now.
+/// Bikeshed name for now. This trait does not do anything other than reflect the
+/// set of types that are allowed within unions for field validity.
 #[unstable(feature = "bikeshed_guaranteed_no_drop", issue = "none")]
 #[lang = "bikeshed_guaranteed_no_drop"]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
+#[doc(hidden)]
 pub trait BikeshedGuaranteedNoDrop {}
 
 /// Types for which it is safe to share references between threads.

core/src/ptr/const_ptr.rs

@@ -193,7 +193,6 @@ impl<T: ?Sized> *const T {
     /// This is an [Exposed Provenance][crate::ptr#exposed-provenance] API.
     ///
     /// [`with_exposed_provenance`]: with_exposed_provenance
-    #[must_use]
     #[inline(always)]
     #[stable(feature = "exposed_provenance", since = "1.84.0")]
     pub fn expose_provenance(self) -> usize {