diff --git a/src/cli.rs b/src/cli.rs
index fc370e8..6ffd278 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -112,7 +112,7 @@ impl Cli {
     }
 
     pub fn get_matches_and_try_parse() -> Result<(Self, ArgMatches), clap::Error> {
-        Self::get_matches_and_try_parse_from(&std::env::args_os)
+        Self::get_matches_and_try_parse_from(std::env::args_os)
     }
 
     pub fn extra_metadata(&self, matches: &ArgMatches) -> Vec<ExtraMetadataSource> {
@@ -210,12 +210,7 @@ impl TypedValueParser for AutoReqModeParser {
 
         let inner = PossibleValuesParser::new(VALUES.iter().map(|(k, _v)| k));
         match inner.parse_ref(cmd, arg, value) {
-            Ok(name) => Ok(VALUES
-                .iter()
-                .find(|(k, _v)| name.as_str() == (k.as_ref() as &str))
-                .unwrap()
-                .1
-                .clone()),
+            Ok(name) => Ok(VALUES.iter().find(|(k, _v)| name.eq(k)).unwrap().1.clone()),
             Err(e) if e.kind() == clap::error::ErrorKind::InvalidValue => {
                 let inner = PathBufValueParser::new();
                 match inner.parse_ref(cmd, arg, value) {
diff --git a/src/config/mod.rs b/src/config/mod.rs
index 5de5a66..d8de4cb 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -86,7 +86,7 @@ impl Config {
 
     pub(crate) fn create_cargo_toml_path<P: AsRef<Path>>(base_path: P) -> Result<PathBuf, Error> {
         let path = base_path.as_ref().join("Cargo.toml");
-        path.canonicalize().or_else(|e| Err(Error::FileIo(path, e)))
+        path.canonicalize().map_err(|e| Error::FileIo(path, e))
     }
 
     fn table_to_dependencies(table: &Table) -> Result<Vec<Dependency>, ConfigError> {
diff --git a/src/error.rs b/src/error.rs
index b369fc2..97f4298 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -71,6 +71,7 @@ pub enum Error {
     #[error(transparent)]
     Config(#[from] ConfigError),
     #[error("Invalid value of enviroment variable {0}: {1}")]
+    #[allow(clippy::enum_variant_names)] // Allow bad terminology for compatibility
     EnvError(&'static str, String),
     #[error(transparent)]
     ParseTomlFile(#[from] FileAnnotatedError<TomlDeError>),