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.

core/dr-pano/src/projection.rs

@@ -151,18 +151,29 @@ mod tests {
 
     #[test]
     fn to_and_from_direction_are_inverses() {
-        for proj in [Projection::Perspective, Projection::Cylindrical, Projection::Spherical] {
+        for proj in [
+            Projection::Perspective,
+            Projection::Cylindrical,
+            Projection::Spherical,
+        ] {
             for (u, v) in [(0.0, 0.0), (300.0, -200.0), (-900.0, 450.0)] {
                 let d = proj.to_direction(1000.0, u, v);
                 let (bu, bv) = proj.from_direction(1000.0, d).expect("in front");
-                assert!((bu - u).abs() < 1e-9 && (bv - v).abs() < 1e-9, "{proj:?} {u} {v}");
+                assert!(
+                    (bu - u).abs() < 1e-9 && (bv - v).abs() < 1e-9,
+                    "{proj:?} {u} {v}"
+                );
             }
         }
     }
 
     #[test]
     fn the_origin_looks_down_z_in_every_projection() {
-        for proj in [Projection::Perspective, Projection::Cylindrical, Projection::Spherical] {
+        for proj in [
+            Projection::Perspective,
+            Projection::Cylindrical,
+            Projection::Spherical,
+        ] {
             let d = proj.to_direction(500.0, 0.0, 0.0);
             assert!((d.z() - 1.0).abs() < 1e-12);
         }