Treat time in seconds as an integer for download times

fixes #1696

Author: Manishearth

src/rustup-cli/download_tracker.rs

@@ -172,29 +172,26 @@ impl fmt::Display for HumanReadable {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         if f.alternate() {
             // repurposing the alternate mode for ETA
-            let sec = self.0;
+            let sec = self.0 as u32;
 
             if sec.is_infinite() {
                 write!(f, "Unknown")
-            } else if sec > 48. * 3600. {
-                let sec = self.0;
-                let d = sec / (24. * 3600.);
-                let h = sec % (24. * 3600.);
-                let min = sec % 3600.;
-                let sec = sec % 60.;
+            } else if sec > 48 * 3600 {
+                let d = sec / (24 * 3600);
+                let h = sec % (24 * 3600);
+                let min = sec % 3600;
+                let sec = sec % 60;
 
                 write!(f, "{:3} days {:2} h {:2} min {:2} s", d, h, min, sec) // XYZ days PQ h RS min TU s
-            } else if sec > 6_000. {
-                let sec = self.0;
-                let h = sec / 3600.;
-                let min = sec % 3600.;
-                let sec = sec % 60.;
+            } else if sec > 6_000 {
+                let h = sec / 3600;
+                let min = sec % 3600;
+                let sec = sec % 60;
 
                 write!(f, "{:3} h {:2} min {:2} s", h, min, sec) // XYZ h PQ min RS s
-            } else if sec > 100. {
-                let sec = self.0;
-                let min = sec / 60.;
-                let sec = sec % 60.;
+            } else if sec > 100 {
+                let min = sec / 60;
+                let sec = sec % 60;
 
                 write!(f, "{:3} min {:2} s", min, sec) // XYZ min PQ s
             } else {