Bump fuschia_zircon to 0.3

Eijebong · Eijebong · commit 480b03d90018 · 2017-11-16T20:29:15.000+01:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -27,4 +27,4 @@ log = "0.3.0"
 members = ["rand-derive"]
 
 [target.'cfg(target_os = "fuchsia")'.dependencies]
-fuchsia-zircon = "^0.2.1"
+fuchsia-zircon = "0.3"
