update to 2018 edition (#141)

* update to 2018 edition

* remove more externs

* bump version

1 files changed, 0 insertions, 3 deletions

diff --git a/examples/logs.rs b/examples/logs.rs
index 6fad7d6..57f12be 100644
--- a/examples/logs.rs
+++ b/examples/logs.rs
@@ -1,6 +1,3 @@
-extern crate shiplift;
-extern crate tokio;
-
 use shiplift::{tty::StreamType, Docker, LogsOptions};
 use std::env;
 use tokio::prelude::{Future, Stream};