Update dependencies

Cargo.toml

@@ -13,7 +13,7 @@ categories = ["network-programming", "cryptography"]
 untrusted = "0.6.1"
 base64 = "0.9"
 log = { version = "0.4.0", optional = true }
-ring = { version = "0.13.0-alpha4", features = ["rsa_signing"] }
+ring = { version = "0.13.0-alpha5", features = ["rsa_signing"] }
 webpki = "0.18.0-alpha3"
 sct = "0.3"
 
@@ -25,14 +25,14 @@ quic = []
 
 [dev-dependencies]
 log = "0.4"
-env_logger = "0.4.2"
+env_logger = "0.5"
 mio = "0.6"
-docopt = "0.8"
+docopt = "1.0"
 serde = "1.0"
 serde_derive = "1.0"
 webpki-roots = "0.14.0"
 ct-logs = "0.3"
-regex = "0.2"
+regex = "1.0"
 vecio = "0.1"
 
 [[example]]

examples/tlsclient.rs

@@ -515,9 +515,9 @@ fn main() {
         .unwrap_or_else(|e| e.exit());
 
     if args.flag_verbose {
-        let mut logger = env_logger::LogBuilder::new();
-        logger.parse("trace");
-        logger.init().unwrap();
+        env_logger::Builder::new()
+            .parse("trace")
+            .init();
     }
 
     let port = args.flag_port.unwrap_or(443);

examples/tlsserver.rs

@@ -579,9 +579,9 @@ fn main() {
         .unwrap_or_else(|e| e.exit());
 
     if args.flag_verbose {
-        let mut logger = env_logger::LogBuilder::new();
-        logger.parse("trace");
-        logger.init().unwrap();
+        env_logger::Builder::new()
+            .parse("trace")
+            .init();
     }
 
     let mut addr: net::SocketAddr = "0.0.0.0:443".parse().unwrap();