Auto merge of rust-lang#131601 - matthiaskrgr:rollup-iaai3u5, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#130870 (Add suggestion for removing invalid path sep `::` in fn def)
 - rust-lang#131233 (std: fix stdout-before-main)
 - rust-lang#131239 (Don't assume traits used as type are trait objs in 2021 edition)
 - rust-lang#131277 (Handle `clippy` cases of `rustc::potential_query_instability` lint)
 - rust-lang#131567 (Emit an error for unstable attributes that reference already stable features)
 - rust-lang#131585 (compiletest: Remove the one thing that was checking a directive's `original_line`)
 - rust-lang#131590 (yeet some clones)
 - rust-lang#131597 (Take a display name for `tool_check_step!`)

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

Author: bors

compiler/rustc_borrowck/src/nll.rs

@@ -165,7 +165,7 @@ pub(crate) fn compute_regions<'a, 'tcx>(
         universe_causes,
         type_tests,
         liveness_constraints,
-        elements.clone(),
+        elements,
     );
 
     // If requested: dump NLL facts, and run legacy polonius analysis.

compiler/rustc_builtin_macros/src/deriving/smart_ptr.rs

@@ -312,7 +312,7 @@ pub(crate) fn expand_deriving_smart_ptr(
     impl_generics.params.insert(pointee_param_idx + 1, extra_param);
 
     // Add the impl blocks for `DispatchFromDyn` and `CoerceUnsized`.
-    let gen_args = vec![GenericArg::Type(alt_self_type.clone())];
+    let gen_args = vec![GenericArg::Type(alt_self_type)];
     add_impl_block(impl_generics.clone(), sym::DispatchFromDyn, gen_args.clone());
     add_impl_block(impl_generics.clone(), sym::CoerceUnsized, gen_args);
 }