chore(shallow_temp_dir): panic if not panicking (#2172)

## Linked Issues/PRs
<!-- List of related issues/PRs -->
- #2170

## Description
<!-- List of detailed changes -->
Panics while dropping the database if there is no pre-existing panic,
similar to how its done in stdlib :)

## Checklist
- [x] Breaking changes are clearly marked as such in the PR description
and changelog
- [x] New behavior is reflected in tests
- [x] [The specification](https://github.com/FuelLabs/fuel-specs/)
matches the implemented behavior (link update PR if changes are needed)

### Before requesting review
- [x] I have reviewed the code myself
- [x] I have created follow-up issues caused by this PR and linked them
here

### After merging, notify other teams

[Add or remove entries as needed]

- [ ] [Rust SDK](https://github.com/FuelLabs/fuels-rs/)
- [ ] [Sway compiler](https://github.com/FuelLabs/sway/)
- [ ] [Platform
documentation](https://github.com/FuelLabs/devrel-requests/issues/new?assignees=&labels=new+request&projects=&template=NEW-REQUEST.yml&title=%5BRequest%5D%3A+)
(for out-of-organization contributors, the person merging the PR will do
this)
- [ ] Someone else?

benches/src/utils.rs

@@ -45,7 +45,9 @@ impl Drop for ShallowTempDir {
 
         if should_clean_up {
             if let Err(e) = std::fs::remove_dir_all(&self.path) {
-                eprintln!("Failed to remove temp directory: {:?}", e);
+                if !std::thread::panicking() {
+                    panic!("Failed to remove ShallowTempDir: {}", e);
+                }
             }
         }
     }
@@ -125,12 +127,31 @@ mod tests {
         env::remove_var(DB_CLEAN_UP_ENV_VAR);
     }
 
+    fn shallow_temp_dir__panics_while_dropping_if_not_panicking() {
+        // given
+        env::set_var(DB_CLEAN_UP_ENV_VAR, "true");
+
+        let result = std::panic::catch_unwind(|| {
+            let _ = ShallowTempDir::new();
+            // when: out of scope, tries to drop
+            // it will panic when trying to drop, since there
+            // are no other panics
+        });
+
+        // then
+        assert!(result.is_err());
+
+        // clean up
+        env::remove_var(DB_CLEAN_UP_ENV_VAR);
+    }
+
     #[test]
     fn test_shallow_temp_dir_behaviour() {
         // run tests sequentially to avoid conflicts due to env var usage
         shallow_temp_dir__drops_if_env_var_is_set();
         shallow_temp_dir__does_not_drop_if_env_var_is_set();
         shallow_temp_dir__drops_if_env_var_is_not_set();
         shallow_temp_dir__drops_if_env_var_malformed();
+        shallow_temp_dir__panics_while_dropping_if_not_panicking();
     }
 }