2 files changed, 7 insertions, 7 deletions

diff --git a/crates/ra_syntax/src/ast/expr_extensions.rs b/crates/ra_syntax/src/ast/expr_extensions.rs
index 2e50a095c..77cceb382 100644
--- a/crates/ra_syntax/src/ast/expr_extensions.rs
+++ b/crates/ra_syntax/src/ast/expr_extensions.rs
@@ -30,7 +30,7 @@ pub enum ElseBranch {
 
 impl ast::IfExpr {
     pub fn then_branch(&self) -> Option<ast::BlockExpr> {
-        self.blocks().nth(0)
+        self.blocks().next()
     }
     pub fn else_branch(&self) -> Option<ElseBranch> {
         let res = match self.blocks().nth(1) {
@@ -208,7 +208,7 @@ impl ast::BinExpr {
     }
 
     pub fn lhs(&self) -> Option<ast::Expr> {
-        children(self).nth(0)
+        children(self).next()
     }
 
     pub fn rhs(&self) -> Option<ast::Expr> {
@@ -271,7 +271,7 @@ impl ast::RangeExpr {
 
 impl ast::IndexExpr {
     pub fn base(&self) -> Option<ast::Expr> {
-        children(self).nth(0)
+        children(self).next()
     }
     pub fn index(&self) -> Option<ast::Expr> {
         children(self).nth(1)
@@ -287,7 +287,7 @@ impl ast::ArrayExpr {
     pub fn kind(&self) -> ArrayExprKind {
         if self.is_repeat() {
             ArrayExprKind::Repeat {
-                initializer: children(self).nth(0),
+                initializer: children(self).next(),
                 repeat: children(self).nth(1),
             }
         } else {
@@ -328,10 +328,10 @@ impl ast::Literal {
     }
 
     pub fn kind(&self) -> LiteralKind {
-        const INT_SUFFIXES: [&'static str; 12] = [
+        const INT_SUFFIXES: [&str; 12] = [
             "u64", "u32", "u16", "u8", "usize", "isize", "i64", "i32", "i16", "i8", "u128", "i128",
         ];
-        const FLOAT_SUFFIXES: [&'static str; 2] = ["f32", "f64"];
+        const FLOAT_SUFFIXES: [&str; 2] = ["f32", "f64"];
 
         let token = self.token();
 
diff --git a/crates/ra_syntax/src/ast/make.rs b/crates/ra_syntax/src/ast/make.rs
index 89d1403e7..7c20fcc10 100644
--- a/crates/ra_syntax/src/ast/make.rs
+++ b/crates/ra_syntax/src/ast/make.rs
@@ -152,7 +152,7 @@ pub fn match_arm_list(arms: impl IntoIterator<Item = ast::MatchArm>) -> ast::Mat
             format!("    {}{}\n", arm.syntax(), comma)
         })
         .collect::<String>();
-    return from_text(&format!("{}", arms_str));
+    return from_text(&arms_str);
 
     fn from_text(text: &str) -> ast::MatchArmList {
         ast_from_text(&format!("fn f() {{ match () {{\n{}}} }}", text))