Fix warnings.

parser/src/parser.rs

@@ -54,7 +54,7 @@ pub enum Event {
         /// The anchor ID the alias refers to.
         usize,
     ),
-    /// Value, style, anchor_id, tag
+    /// Value, style, `anchor_id`, tag
     Scalar(String, TScalarStyle, usize, Option<Tag>),
     /// The start of a YAML sequence (array).
     SequenceStart(

parser/src/scanner.rs

@@ -313,6 +313,7 @@ struct Indent {
 /// consume/push a character. As of now, almost all lookaheads are 4 characters maximum, except:
 ///   - Escape sequences parsing: some escape codes are 8 characters
 ///   - Scanning indent in scalars: this looks ahead `indent + 2` characters
+///
 /// This constant must be set to at least 8. When scanning indent in scalars, the lookahead is done
 /// in a single call if and only if the indent is `BUFFER_LEN - 2` or less. If the indent is higher
 /// than that, the code will fall back to a loop of lookaheads.
@@ -1140,12 +1141,12 @@ impl<T: Iterator<Item = char>> Scanner<T> {
                     self.scan_tag_shorthand_suffix(false, is_secondary_handle, "", &start_mark)?;
             } else {
                 suffix = self.scan_tag_shorthand_suffix(false, false, &handle, &start_mark)?;
-                handle = "!".to_owned();
+                "!".clone_into(&mut handle);
                 // A special case: the '!' tag.  Set the handle to '' and the
                 // suffix to '!'.
                 if suffix.is_empty() {
                     handle.clear();
-                    suffix = "!".to_owned();
+                    "!".clone_into(&mut suffix);
                 }
             }
         }

parser/tests/spec_test.rs

@@ -5,7 +5,7 @@ extern crate saphyr_parser;
 use saphyr_parser::{Event, EventReceiver, Parser, TScalarStyle};
 
 // These names match the names used in the C++ test suite.
-#[cfg_attr(feature = "cargo-clippy", allow(clippy::enum_variant_names))]
+#[allow(clippy::enum_variant_names)]
 #[derive(Clone, PartialEq, PartialOrd, Debug)]
 enum TestEvent {
     OnDocumentStart,

parser/tools/time_parse.rs

@@ -1,11 +1,11 @@
-use std::env;
-use std::fs::File;
-use std::io::prelude::*;
 use saphyr_parser::{
     parser::{MarkedEventReceiver, Parser},
     scanner::Marker,
     Event,
 };
+use std::env;
+use std::fs::File;
+use std::io::prelude::*;
 
 /// A sink which discards any event sent.
 struct NullSink {}