Make Clippy happy

cargo-dylint/tests/ci.rs

@@ -242,7 +242,7 @@ fn duplicate_dependencies() {
         let stdout_actual = std::str::from_utf8(&assert.get_output().stdout).unwrap();
         let package_versions = stdout_actual
             .lines()
-            .filter(|line| line.chars().next().map_or(false, char::is_alphabetic))
+            .filter(|line| line.chars().next().is_some_and(char::is_alphabetic))
             .map(|line| {
                 <[_; 2]>::try_from(line.split_ascii_whitespace().take(2).collect::<Vec<_>>())
                     .unwrap()

dylint/build.rs

@@ -26,7 +26,7 @@ fn write_dylint_driver_manifest_dir() {
     let dylint_driver_manifest_dir = if dylint_manifest_dir.starts_with(cargo_home)
         || dylint_manifest_dir
             .parent()
-            .map_or(false, |path| path.ends_with("target/package"))
+            .is_some_and(|path| path.ends_with("target/package"))
         || env::var(env::DOCS_RS).is_ok()
     {
         "None".to_owned()

internal/src/env.rs

@@ -56,7 +56,7 @@ declare_const!(TARGET);
 /// ```
 #[must_use]
 pub fn enabled(key: &str) -> bool {
-    std::env::var(key).map_or(false, |value| value != "0")
+    std::env::var(key).is_ok_and(|value| value != "0")
 }
 
 /// A wrapper around `std::env::var` that converts the error into an `anyhow::Error`.

utils/testing/src/lib.rs

@@ -337,7 +337,7 @@ fn rustc_flags(metadata: &Metadata, package: &Package, target: &Target) -> Resul
                     .split(' ')
                     .map(ToOwned::to_owned)
                     .collect::<Vec<_>>();
-                if args.first().map_or(false, is_rustc)
+                if args.first().is_some_and(is_rustc)
                     && args
                         .as_slice()
                         .windows(2)