appease the vociferous tidy

Author: lqd

src/librustc_mir/borrow_check/nll/mod.rs

@@ -235,7 +235,10 @@ pub(in crate::borrow_check) fn compute_regions<'cx, 'tcx>(
         //  `known_subset` facts.
         for (fr1, fr2) in universal_region_relations.known_outlives() {
             if fr1 != fr2 {
-                debug!("compute_regions: emitting polonius `known_subset` fr1={:?}, fr2={:?}", fr1, fr2);
+                debug!(
+                    "compute_regions: emitting polonius `known_subset` fr1={:?}, fr2={:?}",
+                    fr1, fr2
+                );
                 all_facts.known_subset.push((*fr1, *fr2));
             }
         }
@@ -314,8 +317,15 @@ pub(in crate::borrow_check) fn compute_regions<'cx, 'tcx>(
     });
 
     // Solve the region constraints.
-    let closure_region_requirements =
-        regioncx.solve(infcx, &body, local_names, upvars, def_id, errors_buffer, polonius_output.clone());
+    let closure_region_requirements = regioncx.solve(
+        infcx,
+        &body,
+        local_names,
+        upvars,
+        def_id,
+        errors_buffer,
+        polonius_output.clone(),
+    );
 
     // Dump MIR results into a file, if that is enabled. This let us
     // write unit-tests, as well as helping with debugging.

src/librustc_mir/borrow_check/nll/region_infer/mod.rs

@@ -1426,7 +1426,10 @@ impl<'tcx> RegionInferenceContext<'tcx> {
         region_naming: &mut RegionErrorNamingCtx,
         polonius_output: Rc<PoloniusOutput>,
     ) {
-        debug!("check_polonius_subset_errors: {} subset_errors", polonius_output.subset_errors.len());
+        debug!(
+            "check_polonius_subset_errors: {} subset_errors",
+            polonius_output.subset_errors.len()
+        );
 
         let mut outlives_suggestion = OutlivesSuggestionBuilder::new(mir_def_id, local_names);
 
@@ -1647,10 +1650,12 @@ impl<'tcx> RegionInferenceContext<'tcx> {
                 // Grow `shorter_fr` until we find some non-local regions. (We
                 // always will.)  We'll call them `shorter_fr+` -- they're ever
                 // so slightly larger than `shorter_fr`.
-                let shorter_fr_plus =
-                    self.universal_region_relations.non_local_upper_bounds(&shorter_fr);
+                let shorter_fr_plus = self
+                    .universal_region_relations
+                    .non_local_upper_bounds(&shorter_fr);
                 debug!(
-                    "report_or_propagate_universal_region_error: shorter_fr_plus={:?}", shorter_fr_plus
+                    "report_or_propagate_universal_region_error: shorter_fr_plus={:?}",
+                    shorter_fr_plus
                 );
                 for &&fr in &shorter_fr_plus {
                     // Push the constraint `fr-: shorter_fr+`