Auto merge of #117881 - TaKO8Ki:rollup-n7jtmgj, r=TaKO8Ki

Rollup of 5 pull requests

Successful merges:

 - #117737 (Remove `-Zkeep-hygiene-data`.)
 - #117830 (Small improvements in object lifetime default code)
 - #117858 (Compute layout with spans for better cycle errors in coroutines)
 - #117863 (Remove some unused stuff from `rustc_index`)
 - #117872 (Cranelift isn't available on non-nightly channels)

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

compiler/rustc_hir_analysis/src/astconv/mod.rs

@@ -2847,6 +2847,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
     /// provided, if they provided one, and otherwise search the supertypes of trait bounds
     /// for region bounds. It may be that we can derive no bound at all, in which case
     /// we return `None`.
+    #[instrument(level = "debug", skip(self, span), ret)]
     fn compute_object_lifetime_bound(
         &self,
         span: Span,
@@ -2855,8 +2856,6 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
     {
         let tcx = self.tcx();
 
-        debug!("compute_opt_region_bound(existential_predicates={:?})", existential_predicates);
-
         // No explicit region bound specified. Therefore, examine trait
         // bounds and see if we can derive region bounds from those.
         let derived_region_bounds = object_region_bounds(tcx, existential_predicates);