Bump log dependency

alexcrichton · alexcrichton · commit 8b175ecda008 · 2018-03-05T12:24:35.000-08:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -16,5 +16,5 @@ persistent = [ "dogged" ]
 
 [dependencies]
 dogged = { version = "0.2.0", optional = true }
-log = "0.3"
-petgraph = { version = "0.4.5", optional = true }
+log = "0.4"
+petgraph = { version = "0.4.5", optional = true }
