Bumped backtrace minimum version an use Debug formatter.

See #279
rust-lang-deprecated · Dec 11, 2018 · 392fde7 · 392fde7
1 parent c0e2b52
commit 392fde7
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diff --git a/Cargo.toml b/Cargo.toml
@@ -15,7 +15,7 @@ path = "./failure_derive"
 
 [dependencies.backtrace]
 optional = true
-version = "0.3.3"
+version = "0.3.11"
 
 [workspace]
 members = [".", "failure_derive"]

diff --git a/src/backtrace/mod.rs b/src/backtrace/mod.rs
@@ -137,7 +137,7 @@ with_backtrace! {
     impl Display for Backtrace {
         fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
             if let Some(bt) = self.internal.as_backtrace() {
-                Display::fmt(bt, f)
+                Debug::fmt(bt, f)
             } else { Ok(()) }
         }
     }