Bump nix version

blackbeam · blackbeam · commit 85d31a253bea · 2018-06-30T20:24:51.000+03:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -84,4 +84,4 @@ winapi = "~0.3"
 
 [target.'cfg(unix)'.dependencies]
 libc = "0.2"
-nix = "0.10"
+nix = "0.11"
