Use .nth(x) instead of .skip(x).next() on iterators.

Author: matthiaskrgr

src/librustc_codegen_ssa/back/link.rs

@@ -186,7 +186,7 @@ pub fn get_linker(sess: &Session, linker: &Path, flavor: LinkerFlavor) -> (PathB
     if flavor == LinkerFlavor::Msvc && t.target_vendor == "uwp" {
         if let Some(ref tool) = msvc_tool {
             let original_path = tool.path();
-            if let Some(ref root_lib_path) = original_path.ancestors().skip(4).next() {
+            if let Some(ref root_lib_path) = original_path.ancestors().nth(4) {
                 let arch = match t.arch.as_str() {
                     "x86_64" => Some("x64".to_string()),
                     "x86" => Some("x86".to_string()),

src/librustc_infer/traits/error_reporting/suggestions.rs

@@ -401,9 +401,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
         if let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(span) {
             let refs_number =
                 snippet.chars().filter(|c| !c.is_whitespace()).take_while(|c| *c == '&').count();
-            if let Some('\'') =
-                snippet.chars().filter(|c| !c.is_whitespace()).skip(refs_number).next()
-            {
+            if let Some('\'') = snippet.chars().filter(|c| !c.is_whitespace()).nth(refs_number) {
                 // Do not suggest removal of borrow from type arguments.
                 return;
             }
@@ -464,9 +462,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
         if let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(span) {
             let refs_number =
                 snippet.chars().filter(|c| !c.is_whitespace()).take_while(|c| *c == '&').count();
-            if let Some('\'') =
-                snippet.chars().filter(|c| !c.is_whitespace()).skip(refs_number).next()
-            {
+            if let Some('\'') = snippet.chars().filter(|c| !c.is_whitespace()).nth(refs_number) {
                 // Do not suggest removal of borrow from type arguments.
                 return;
             }