Fix mismatched-lifetime-syntaxes lint recently added to nightly

Author: ictrobot

crates/utils/src/parser/base.rs

@@ -453,7 +453,7 @@ pub trait Parser<'i>: Sized {
     /// assert_eq!(filtered, vec![22, 44]);
     /// # Ok::<(), InputError>(())
     /// ```
-    fn parse_iterator(self, input: &str) -> ParserIterator<Self> {
+    fn parse_iterator(self, input: &str) -> ParserIterator<'_, Self> {
         ParserIterator {
             input,
             remaining: input.as_bytes(),
@@ -477,7 +477,7 @@ pub trait Parser<'i>: Sized {
     ///     vec![123, 456, 7, 8, 9]
     /// );
     /// ```
-    fn matches_iterator(self, input: &str) -> ParserMatchesIterator<Self> {
+    fn matches_iterator(self, input: &str) -> ParserMatchesIterator<'_, Self> {
         ParserMatchesIterator {
             remaining: input.as_bytes(),
             parser: self,

crates/year2015/src/day12.rs

@@ -24,15 +24,15 @@ impl Day12 {
         self.part2
     }
 
-    fn parse(input: &[u8]) -> ParseResult<(i32, i32)> {
+    fn parse(input: &[u8]) -> ParseResult<'_, (i32, i32)> {
         match input {
             [b'{', ..] => Self::parse_object(&input[1..]),
             [b'[', ..] => Self::parse_array(&input[1..]),
             _ => Err((ParseError::Expected("'{' or '['"), input)),
         }
     }
 
-    fn parse_object(mut input: &[u8]) -> ParseResult<(i32, i32)> {
+    fn parse_object(mut input: &[u8]) -> ParseResult<'_, (i32, i32)> {
         let (mut part1, mut part2) = (0, 0);
         let mut red = false;
         loop {
@@ -66,7 +66,7 @@ impl Day12 {
         }
     }
 
-    fn parse_array(mut input: &[u8]) -> ParseResult<(i32, i32)> {
+    fn parse_array(mut input: &[u8]) -> ParseResult<'_, (i32, i32)> {
         let (mut part1, mut part2) = (0, 0);
         loop {
             match input {

crates/year2017/src/day09.rs

@@ -15,7 +15,7 @@ impl Day09 {
     }
 
     // Parses either a (nested) group or a single piece of garbage.
-    fn parse(mut input: &[u8]) -> ParseResult<(u32, u32)> {
+    fn parse(mut input: &[u8]) -> ParseResult<'_, (u32, u32)> {
         let mut group_depth = 0;
         let mut in_garbage = false;
 
@@ -59,7 +59,7 @@ impl Day09 {
                     }
                     [b',', rest @ ..] if group_depth > 0 => rest,
                     _ if group_depth > 0 => {
-                        return Err((ParseError::Custom("expected '{', '}', ',' or '<'"), input))
+                        return Err((ParseError::Custom("expected '{', '}', ',' or '<'"), input));
                     }
                     _ => return Err((ParseError::Custom("expected '{' or '<'"), input)),
                 }

crates/year2017/src/day21.rs

@@ -96,7 +96,7 @@ impl Day21 {
     }
 
     #[inline]
-    fn parse_square<const N: usize>(mut input: &[u8]) -> ParseResult<usize> {
+    fn parse_square<const N: usize>(mut input: &[u8]) -> ParseResult<'_, usize> {
         let mut result = 0;
         for row in 0..N {
             for col in 0..N {