diff --git a/tests/compile_time.rs b/tests/compile_time.rs
index 7926b36..1c27197 100644
--- a/tests/compile_time.rs
+++ b/tests/compile_time.rs
@@ -6,7 +6,7 @@ use xshell::{cmd, Shell};
 fn fixed_cost_compile_times() {
     let mut sh = Shell::new().unwrap();
 
-    let _p = sh.set_current_dir("tests/data");
+    sh.set_current_dir("tests/data");
     let baseline = compile_bench(&mut sh, "baseline");
     let _ducted = compile_bench(&sh, "ducted");
     let xshelled = compile_bench(&mut sh, "xshelled");
diff --git a/tests/it/env.rs b/tests/it/env.rs
index 2c73333..6d20be0 100644
--- a/tests/it/env.rs
+++ b/tests/it/env.rs
@@ -34,8 +34,8 @@ fn test_env() {
         );
     }
 
-    let _g1 = sh.set_var(v1, "foobar");
-    let _g2 = sh.set_var(v2, "quark");
+    sh.set_var(v1, "foobar");
+    sh.set_var(v2, "quark");
 
     assert_env(cmd!(sh, "xecho -$ {v1} {v2}"), &[(v1, Some("foobar")), (v2, Some("quark"))]);
     assert_env(cmd!(cloned_sh, "xecho -$ {v1} {v2}"), &[(v1, None), (v2, None)]);
@@ -79,8 +79,8 @@ fn test_env_clear() {
         &[(v1, Some("789")), (v2, None)],
     );
 
-    let _g1 = sh.set_var(v1, "foobar");
-    let _g2 = sh.set_var(v2, "quark");
+    sh.set_var(v1, "foobar");
+    sh.set_var(v2, "quark");
 
     assert_env(cmd!(sh, "{xecho} -$ {v1} {v2}").env_clear(), &[(v1, None), (v2, None)]);
     assert_env(
diff --git a/tests/it/main.rs b/tests/it/main.rs
index f7b3525..4959376 100644
--- a/tests/it/main.rs
+++ b/tests/it/main.rs
@@ -326,7 +326,7 @@ fn test_subshells_env() {
         assert_eq!(e2.as_deref(), Some("1".as_ref()));
         {
             let mut sh = sh.clone();
-            let _e = sh.set_var(VAR, "2");
+            sh.set_var(VAR, "2");
             let e3 = sh.var_os(VAR);
             assert_eq!(e3.as_deref(), Some("2".as_ref()));
         }
@@ -383,14 +383,14 @@ fn test_copy_file() {
 fn test_exists() {
     let mut sh = setup();
     let tmp = sh.create_temp_dir().unwrap();
-    let _d = sh.set_current_dir(tmp.path());
+    sh.set_current_dir(tmp.path());
     assert!(!sh.path_exists("foo.txt"));
     sh.write_file("foo.txt", "foo").unwrap();
     assert!(sh.path_exists("foo.txt"));
     assert!(!sh.path_exists("bar"));
     sh.create_dir("bar").unwrap();
     assert!(sh.path_exists("bar"));
-    let _d = sh.set_current_dir("bar");
+    sh.set_current_dir("bar");
     assert!(!sh.path_exists("quz.rs"));
     sh.write_file("quz.rs", "fn main () {}").unwrap();
     assert!(sh.path_exists("quz.rs"));