cargo fmt and clippy across the panorama work, and one lint master carried

The dr-face comparison is master's: a negated partial-order test on the
eye box's width, rewritten as the two conditions it meant.

ui/dr-ui/examples/merge.rs

@@ -41,7 +41,8 @@ fn main() {
             .map(std::path::Path::to_path_buf)
             .unwrap_or_else(|| PathBuf::from("."))
     });
-    let request = dr_ui::merge::MergeRequest::new(frames, dr_ui::merge::MergeDestination::Local(dir));
+    let request =
+        dr_ui::merge::MergeRequest::new(frames, dr_ui::merge::MergeDestination::Local(dir));
     let (tx, rx) = std::sync::mpsc::channel();
     let (decide, decision) = std::sync::mpsc::channel();
     let cancel = dr_ui::merge::Cancel::default();
@@ -68,15 +69,26 @@ fn main() {
                 );
                 for (k, f) in r.frames.iter().enumerate() {
                     match f {
-                        Ok((yaw, pitch)) => println!("  frame {k}: yaw {yaw:7.2}° pitch {pitch:6.2}°"),
+                        Ok((yaw, pitch)) => {
+                            println!("  frame {k}: yaw {yaw:7.2}° pitch {pitch:6.2}°")
+                        }
                         Err(why) => println!("  frame {k}: NOT ALIGNED — {why}"),
                     }
                 }
                 // Headless: the confirmation the dialog would ask for.
                 let _ = decide.send(dr_ui::merge::Decision::Merge { projection: None });
             }
-            Done { path, width, height, .. } => {
-                println!("wrote {} ({width}×{height}) in {:?}", path.display(), t.elapsed());
+            Done {
+                path,
+                width,
+                height,
+                ..
+            } => {
+                println!(
+                    "wrote {} ({width}×{height}) in {:?}",
+                    path.display(),
+                    t.elapsed()
+                );
             }
             Failed(e) => {
                 eprintln!("failed: {e}");