Cleanup: clippy + rustfmt.

Author: ibabushkin

src/changes.rs

@@ -89,7 +89,7 @@ impl<'a> Serialize for RSpan<'a> {
         let hi = self.0.source_map().lookup_char_pos(self.1.hi());
 
         assert!(lo.file.name == hi.file.name);
-        let file_name = if let &FileName::Real(ref p) = &lo.file.name {
+        let file_name = if let FileName::Real(ref p) = lo.file.name {
             format!("{}", p.display())
         } else {
             "no file name".to_owned()

src/mismatch.rs

@@ -12,8 +12,7 @@ use rustc::{
         self,
         relate::{Relate, RelateResult, TypeRelation},
         subst::SubstsRef,
-        ParamEnv,
-        Ty, TyCtxt,
+        ParamEnv, Ty, TyCtxt,
         Visibility::Public,
     },
 };