diff --git a/editor/src/plugins/debug/debug_polygon.rs b/editor/src/plugins/debug/debug_polygon.rs
index eaae9bc7aa..53505194b3 100644
--- a/editor/src/plugins/debug/debug_polygon.rs
+++ b/editor/src/plugins/debug/debug_polygon.rs
@@ -57,7 +57,7 @@ impl DebugPolygon {
                             .polygon
                             .triangles()
                             .into_iter()
-                            .map(|tri| Item::Triangle(tri))
+                            .map(Item::Triangle)
                             .collect(),
                         current: 0,
                     });
diff --git a/ezgui/src/event.rs b/ezgui/src/event.rs
index 26d3ba9fad..616c2f03a0 100644
--- a/ezgui/src/event.rs
+++ b/ezgui/src/event.rs
@@ -57,7 +57,7 @@ impl Event {
             }
             glutin::WindowEvent::MouseWheel { delta, .. } => match delta {
                 glutin::MouseScrollDelta::LineDelta(_, dy) => {
-                    Some(Event::MouseWheelScroll(dy as f64))
+                    Some(Event::MouseWheelScroll(f64::from(dy)))
                 }
                 _ => None,
             },
diff --git a/ezgui/src/runner.rs b/ezgui/src/runner.rs
index 1b97104c36..4fbe2aab82 100644
--- a/ezgui/src/runner.rs
+++ b/ezgui/src/runner.rs
@@ -288,7 +288,7 @@ pub fn run<T, G: GUI<T>>(mut gui: G, window_title: &str) {
     let vmetrics = fonts[0].v_metrics(Scale::uniform(text::FONT_SIZE));
     // TODO This works for this font, but could be more paranoid with abs()
     gui.get_mut_canvas().line_height =
-        (vmetrics.ascent - vmetrics.descent + vmetrics.line_gap) as f64;
+        f64::from(vmetrics.ascent - vmetrics.descent + vmetrics.line_gap);
     gui.get_mut_canvas().glyphs = RefCell::new(Some(GlyphBrush::new(&display, fonts)));
 
     let mut state = State {
diff --git a/ezgui/src/text.rs b/ezgui/src/text.rs
index 0263e1aa02..7375e58f1f 100644
--- a/ezgui/src/text.rs
+++ b/ezgui/src/text.rs
@@ -120,26 +120,27 @@ impl Text {
         glyphs: &mut GlyphBrush<'static, 'static>,
         canvas: &Canvas,
     ) -> (f64, f64) {
-        let width = self
-            .lines
-            .iter()
-            .map(|(_, l)| {
-                let full_line = l.iter().fold(String::new(), |mut so_far, span| {
-                    so_far.push_str(&span.text);
-                    so_far
-                });
-                // Empty lines or whitespace-only lines effectively have 0 width.
-                glyphs
-                    .pixel_bounds(Section {
-                        text: &full_line,
-                        scale: Scale::uniform(FONT_SIZE),
-                        ..Section::default()
-                    })
-                    .map(|rect| rect.width())
-                    .unwrap_or(0)
-            })
-            .max()
-            .unwrap() as f64;
+        let width = f64::from(
+            self.lines
+                .iter()
+                .map(|(_, l)| {
+                    let full_line = l.iter().fold(String::new(), |mut so_far, span| {
+                        so_far.push_str(&span.text);
+                        so_far
+                    });
+                    // Empty lines or whitespace-only lines effectively have 0 width.
+                    glyphs
+                        .pixel_bounds(Section {
+                            text: &full_line,
+                            scale: Scale::uniform(FONT_SIZE),
+                            ..Section::default()
+                        })
+                        .map(|rect| rect.width())
+                        .unwrap_or(0)
+                })
+                .max()
+                .unwrap(),
+        );
 
         // Always use the max height, since other stuff like menus assume a fixed height.
         (width, (self.lines.len() as f64) * canvas.line_height)
diff --git a/synthetic/src/model.rs b/synthetic/src/model.rs
index a7b3d9d76d..4501970fbd 100644
--- a/synthetic/src/model.rs
+++ b/synthetic/src/model.rs
@@ -371,7 +371,7 @@ impl Model {
             }
             map.buildings.push(raw_data::Building {
                 // TODO Duplicate points :(
-                points: b.polygon().points().into_iter().map(pt).collect(),
+                points: b.polygon().points().iter().map(|p| pt(*p)).collect(),
                 osm_tags,
                 osm_way_id: idx as i64,
             });