minor: update clippy to 1.75 (#451)

Author: abr-egn

.evergreen/check-clippy.sh

@@ -5,7 +5,7 @@ set -o errexit
 . ~/.cargo/env
 
 # Pin clippy to the latest version. This should be updated when new versions of Rust are released.
-CLIPPY_VERSION=1.71.0
+CLIPPY_VERSION=1.75.0
 
 rustup install $CLIPPY_VERSION
 

src/tests/modules/bson.rs

@@ -179,10 +179,13 @@ fn from_impls() {
 
     // References
     assert_eq!(Bson::from(&24i32), Bson::Int32(24));
-    assert_eq!(
-        Bson::try_from(&String::from("data")).unwrap(),
-        Bson::String(String::from("data"))
-    );
+    #[allow(clippy::unnecessary_fallible_conversions)]
+    {
+        assert_eq!(
+            Bson::try_from(&String::from("data")).unwrap(),
+            Bson::String(String::from("data"))
+        );
+    }
     assert_eq!(Bson::from(&oid), Bson::ObjectId(oid));
     assert_eq!(
         Bson::from(&doc! {"a": "b"}),

src/tests/modules/macros.rs

@@ -159,7 +159,7 @@ fn recursive_macro() {
                             assert_eq!(2, arr.len());
 
                             // Match array items
-                            match arr.get(0) {
+                            match arr.first() {
                                 Some(Bson::String(ref s)) => assert_eq!("seal", s),
                                 _ => panic!(
                                     "String 'seal' was not inserted into inner array correctly."
@@ -193,7 +193,7 @@ fn recursive_macro() {
             assert_eq!(1, arr.len());
 
             // Integer type
-            match arr.get(0) {
+            match arr.first() {
                 Some(Bson::Int32(ref i)) => assert_eq!(-7, *i),
                 _ => panic!("I32 '-7' was not inserted correctly."),
             }
@@ -207,7 +207,7 @@ fn recursive_macro() {
             assert_eq!(1, arr.len());
 
             // Nested document
-            match arr.get(0) {
+            match arr.first() {
                 Some(Bson::Document(ref doc)) => {
                     // String
                     match doc.get("apple") {