diff --git a/src/find/matchers/entry.rs b/src/find/matchers/entry.rs
index fb28f2a..ecea568 100644
--- a/src/find/matchers/entry.rs
+++ b/src/find/matchers/entry.rs
@@ -174,9 +174,9 @@ impl From<walkdir::Error> for WalkError {
 impl From<&walkdir::Error> for WalkError {
     fn from(e: &walkdir::Error) -> Self {
         Self {
-            path: e.path().map(|p| p.to_owned()),
+            path: e.path().map(std::borrow::ToOwned::to_owned),
             depth: Some(e.depth()),
-            raw: e.io_error().and_then(|e| e.raw_os_error()),
+            raw: e.io_error().and_then(std::io::Error::raw_os_error),
         }
     }
 }
@@ -279,7 +279,7 @@ impl WalkEntry {
                 // Path::file_name() only works if the last component is normal
                 path.components()
                     .next_back()
-                    .map(|c| c.as_os_str())
+                    .map(std::path::Component::as_os_str)
                     .unwrap_or_else(|| path.as_os_str())
             }
             Entry::WalkDir(ent) => ent.file_name(),
@@ -311,7 +311,7 @@ impl WalkEntry {
             Entry::Explicit(_, _) => Ok(self.get_metadata()?),
             Entry::WalkDir(ent) => Ok(ent.metadata()?),
         });
-        result.as_ref().map_err(|e| e.clone())
+        result.as_ref().map_err(std::clone::Clone::clone)
     }
 
     /// Get the file type of this entry.
diff --git a/src/find/matchers/mod.rs b/src/find/matchers/mod.rs
index b85d5be..2ac407c 100644
--- a/src/find/matchers/mod.rs
+++ b/src/find/matchers/mod.rs
@@ -1032,10 +1032,10 @@ fn parse_files0_args(config: &mut Config) -> Result<(), Box<dyn Error>> {
     let mut string_segments: Vec<String> = buffer_split
         .iter()
         .filter_map(|s| std::str::from_utf8(s).ok())
-        .map(|s| s.to_string())
+        .map(std::string::ToString::to_string)
         .collect();
     // empty starting point checker
-    if string_segments.iter().any(|s| s.is_empty()) {
+    if string_segments.iter().any(std::string::String::is_empty) {
         eprintln!("find: invalid zero-length file name");
         // remove the empty ones so as to avoid file not found error
         string_segments.retain(|s| !s.is_empty());
diff --git a/src/find/mod.rs b/src/find/mod.rs
index 906564b..f51ce77 100644
--- a/src/find/mod.rs
+++ b/src/find/mod.rs
@@ -237,7 +237,7 @@ fn process_dir(
             Ok(entry) => {
                 let mut matcher_io = matchers::MatcherIO::new(deps);
 
-                let new_dir = entry.path().parent().map(|x| x.to_path_buf());
+                let new_dir = entry.path().parent().map(std::path::Path::to_path_buf);
                 if new_dir != current_dir {
                     if let Some(dir) = current_dir.take() {
                         matcher.finished_dir(dir.as_path(), &mut matcher_io);
diff --git a/src/locate/mod.rs b/src/locate/mod.rs
index 0230193..d86366a 100644
--- a/src/locate/mod.rs
+++ b/src/locate/mod.rs
@@ -448,7 +448,7 @@ impl Iterator for DbReader {
                 .take(self.prefix as usize)
                 .collect::<Vec<_>>()
         });
-        if (prefix.as_ref().map(|v| v.len()).unwrap_or(0) as isize) < size {
+        if (prefix.as_ref().map(std::vec::Vec::len).unwrap_or(0) as isize) < size {
             return Some(Err(Error::InvalidDb(
                 self.path.to_string_lossy().to_string(),
             )));
diff --git a/src/updatedb/mod.rs b/src/updatedb/mod.rs
index 2728c14..b25a23e 100644
--- a/src/updatedb/mod.rs
+++ b/src/updatedb/mod.rs
@@ -47,7 +47,11 @@ impl From<ArgMatches> for Config {
                 .unwrap_or_else(|| vec![PathBuf::from("/")]),
             net_paths: value
                 .get_one::<String>("netpaths")
-                .map(|s| s.split_whitespace().map(|s| s.to_owned()).collect())
+                .map(|s| {
+                    s.split_whitespace()
+                        .map(std::borrow::ToOwned::to_owned)
+                        .collect()
+                })
                 .unwrap_or_default(),
             prune_paths: value
                 .get_one::<String>("prunepaths")
@@ -60,7 +64,11 @@ impl From<ArgMatches> for Config {
                 }),
             prune_fs: value
                 .get_one::<String>("prunefs")
-                .map(|s| s.split_whitespace().map(|s| s.to_owned()).collect())
+                .map(|s| {
+                    s.split_whitespace()
+                        .map(std::borrow::ToOwned::to_owned)
+                        .collect()
+                })
                 .unwrap_or_else(|| {
                     ["nfs", "NFS", "proc"]
                         .into_iter()