diff --git a/src/uu/df/src/df.rs b/src/uu/df/src/df.rs
index 0f9f440e2..d1541866d 100644
--- a/src/uu/df/src/df.rs
+++ b/src/uu/df/src/df.rs
@@ -676,7 +676,7 @@ fn filter_mount_list(vmi: Vec<MountInfo>, paths: &[String], opt: &Options) -> Ve
                 #[allow(clippy::map_entry)]
                 {
                     if acc.contains_key(&id) {
-                        let seen = acc.get(&id).unwrap().replace(mi.clone());
+                        let seen = acc[&id].replace(mi.clone());
                         let target_nearer_root = seen.mount_dir.len() > mi.mount_dir.len();
                         // With bind mounts, prefer items nearer the root of the source
                         let source_below_root = !seen.mount_root.is_empty()
@@ -694,7 +694,7 @@ fn filter_mount_list(vmi: Vec<MountInfo>, paths: &[String], opt: &Options) -> Ve
                             environments for example.  */
                             || seen.mount_dir != mi.mount_dir)
                         {
-                            acc.get(&id).unwrap().replace(seen);
+                            acc[&id].replace(seen);
                         }
                     } else {
                         acc.insert(id, Cell::new(mi));
diff --git a/src/uu/expand/src/expand.rs b/src/uu/expand/src/expand.rs
index d478c3c73..e44282974 100644
--- a/src/uu/expand/src/expand.rs
+++ b/src/uu/expand/src/expand.rs
@@ -32,7 +32,6 @@ fn tabstops_parse(s: String) -> Vec<usize> {
     let words = s.split(',');
 
     let nums = words
-        .into_iter()
         .map(|sn| {
             sn.parse::<usize>()
                 .unwrap_or_else(|_| crash!(1, "{}\n", "tab size contains invalid character(s)"))
diff --git a/src/uu/tsort/src/tsort.rs b/src/uu/tsort/src/tsort.rs
index e8a1010e1..dc7785645 100644
--- a/src/uu/tsort/src/tsort.rs
+++ b/src/uu/tsort/src/tsort.rs
@@ -131,7 +131,7 @@ impl Graph {
     }
 
     fn has_edge(&self, from: &str, to: &str) -> bool {
-        self.in_edges.get(to).unwrap().contains(from)
+        self.in_edges[to].contains(from)
     }
 
     fn init_node(&mut self, n: &str) {
diff --git a/src/uu/unexpand/src/unexpand.rs b/src/uu/unexpand/src/unexpand.rs
index d15e3f73c..57aa29b0a 100644
--- a/src/uu/unexpand/src/unexpand.rs
+++ b/src/uu/unexpand/src/unexpand.rs
@@ -29,7 +29,6 @@ fn tabstops_parse(s: String) -> Vec<usize> {
     let words = s.split(',');
 
     let nums = words
-        .into_iter()
         .map(|sn| {
             sn.parse()
                 .unwrap_or_else(|_| crash!(1, "{}\n", "tab size contains invalid character(s)"))