Merge branch 'master' into tyler_update_deps

Author: spacejam

Cargo.toml

@@ -62,7 +62,7 @@ rand_chacha = "0.2.2"
 rand_distr = "0.3.0"
 quickcheck = "0.9.2"
 log = "0.4.11"
-env_logger = "0.7.1"
+env_logger = "0.8.1"
 zerocopy = "0.3.0"
 byteorder = "1.3.4"