style: Make clippy happy

crates/tree/examples/failures.rs

@@ -12,7 +12,7 @@ fn main() {
 
     let expected = [1, 2, 3];
     let actual = 15;
-    let pred = predicates::iter::in_iter(expected);
+    let pred = predicates::iter::in_iter(IntoIterator::into_iter(expected));
     if let Some(case) = pred.find_case(false, &actual) {
         let tree = case.tree();
         println!("{}", tree);
@@ -41,7 +41,7 @@ Moon!
 
 Goodbye!";
     let pred = predicates::str::diff(expected);
-    if let Some(case) = pred.find_case(false, &actual) {
+    if let Some(case) = pred.find_case(false, actual) {
         let tree = case.tree();
         println!("{}", tree);
     }

src/function.rs

@@ -137,6 +137,6 @@ where
 #[test]
 fn str_function() {
     let f = function(|x: &str| x == "hello");
-    assert!(f.eval(&"hello"));
-    assert!(!f.eval(&"goodbye"));
+    assert!(f.eval("hello"));
+    assert!(!f.eval("goodbye"));
 }

src/path/fc.rs

@@ -106,6 +106,7 @@ where
     /// assert_eq!(true, predicate_fn.eval(Path::new("./tests/hello_world")));
     /// assert_eq!(false, predicate_fn.eval(Path::new("./tests/empty_file")));
     /// ```
+    #[allow(clippy::wrong_self_convention)]
     fn from_file_path(self) -> FileContentPredicate<Self> {
         FileContentPredicate { p: self }
     }

src/str/adapters.rs

@@ -175,6 +175,7 @@ where
     /// let variable: &[u8] = b"";
     /// assert_eq!(false, predicate_fn.eval(variable));
     /// ```
+    #[allow(clippy::wrong_self_convention)]
     fn from_utf8(self) -> Utf8Predicate<Self> {
         Utf8Predicate { p: self }
     }