From abe4d6e47df9380c5397590152fd807aedb81e75 Mon Sep 17 00:00:00 2001
From: Ian Douglas Scott <ian@iandouglasscott.com>
Date: Thu, 29 Jun 2017 20:24:47 -0700
Subject: [PATCH] Do not panic on duration of zero

This was causing sporadic issues on Redox.
---
 src/pb.rs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/pb.rs b/src/pb.rs
index 461823f7..004ec6e9 100644
--- a/src/pb.rs
+++ b/src/pb.rs
@@ -479,11 +479,13 @@ impl<T: Write> Write for ProgressBar<T> {
 }
 
 fn time_to_std(d: time::Duration) -> Duration {
-    assert!(d > time::Duration::zero());
-
-    let secs = d.num_seconds();
-    let nsecs = (d - time::Duration::seconds(secs)).num_nanoseconds().unwrap();
-    Duration::new(secs as u64, nsecs as u32)
+    if d > time::Duration::zero() {
+        let secs = d.num_seconds();
+        let nsecs = (d - time::Duration::seconds(secs)).num_nanoseconds().unwrap();
+        Duration::new(secs as u64, nsecs as u32)
+    } else {
+        Duration::new(0, 1)
+    }
 }
 
 fn fract_dur(d: Duration) -> f64 {