Refactor/module layout 2018

.cargo-husky/hooks/pre-commit

@@ -1,4 +1,6 @@
 #!/bin/sh
+#
+# This hook was set by cargo-husky v1.5.0: https://github.com/rhysd/cargo-husky#readme
 
 set -eux
 

benches/connection.rs

@@ -137,6 +137,7 @@ fn write_to_file(file_name: &str, data: &[u8]) {
     };
     let mut file = OpenOptions::new()
         .create(true)
+        .truncate(true)
         .write(true)
         .open(path)
         .expect("unable to write to file");