--- a/testing/geckodriver/Cargo.lock
+++ b/testing/geckodriver/Cargo.lock
@@ -1,70 +1,70 @@
 [root]
 name = "wires"
 version = "0.0.1"
 dependencies = [
- "hyper 0.0.1 (git+https://github.com/hyperium/hyper.git#46e1f4443f766c98696150b6056d387fcac0f1a0)",
+ "hyper 0.0.1 (git+https://github.com/hyperium/hyper.git#50a6f6103e842102ccb03e8e49bf8f412fd166bc)",
  "uuid 0.0.1 (git+https://github.com/rust-lang/uuid.git#c6159089a491ff4398c6d423263a085c95092a04)",
 ]
 
 [[package]]
 name = "encoding"
 version = "0.1.0"
-source = "git+https://github.com/lifthrasiir/rust-encoding#97e5a56658d11e6386d0d17386560094490b1daf"
+source = "git+https://github.com/lifthrasiir/rust-encoding#4368ee5d0e7599964d98f874df22c86f4005c9ae"
 
 [[package]]
 name = "hyper"
 version = "0.0.1"
-source = "git+https://github.com/hyperium/hyper.git#46e1f4443f766c98696150b6056d387fcac0f1a0"
+source = "git+https://github.com/hyperium/hyper.git#50a6f6103e842102ccb03e8e49bf8f412fd166bc"
 dependencies = [
  "intertwine 0.0.1 (git+https://github.com/reem/rust-intertwine#3b23760cf7da3c7f38db16bf488c88f6e506de2d)",
- "mime 0.0.1 (git+https://github.com/seanmonstar/mime.rs#62a454863b189fa03a3f8c3db0207cb8fe366b7a)",
+ "mime 0.0.1 (git+https://github.com/seanmonstar/mime.rs#d9a80eea2a4d1bee069ac71d8932c82f7e70cee2)",
  "move-acceptor 0.0.1 (git+https://github.com/reem/rust-move-acceptor#4eef9c13745db3da74c22a26b659dc054aec5500)",
- "openssl 0.0.0 (git+https://github.com/sfackler/rust-openssl#d6578469a85bcc06a5761c1e25a73036427affef)",
+ "openssl 0.0.0 (git+https://github.com/sfackler/rust-openssl#6277635e5c579c5842fc5f921a3b27a544a7b346)",
  "typeable 0.0.1 (git+https://github.com/reem/rust-typeable#55154e1809db8ceec8f8519bdbb638c2fbd712f5)",
  "unsafe-any 0.1.0 (git+https://github.com/reem/rust-unsafe-any#75cff194795447a901c1658e31629899c9c8d52f)",
  "url 0.1.0 (git+https://github.com/servo/rust-url#55b18b796ef2cef5490069dd450c60c2cc2c0c1b)",
 ]
 
 [[package]]
 name = "intertwine"
 version = "0.0.1"
 source = "git+https://github.com/reem/rust-intertwine#3b23760cf7da3c7f38db16bf488c88f6e506de2d"
 
 [[package]]
 name = "mime"
 version = "0.0.1"
-source = "git+https://github.com/seanmonstar/mime.rs#62a454863b189fa03a3f8c3db0207cb8fe366b7a"
+source = "git+https://github.com/seanmonstar/mime.rs#d9a80eea2a4d1bee069ac71d8932c82f7e70cee2"
 
 [[package]]
 name = "move-acceptor"
 version = "0.0.1"
 source = "git+https://github.com/reem/rust-move-acceptor#4eef9c13745db3da74c22a26b659dc054aec5500"
 
 [[package]]
 name = "openssl"
 version = "0.0.0"
-source = "git+https://github.com/sfackler/rust-openssl#d6578469a85bcc06a5761c1e25a73036427affef"
+source = "git+https://github.com/sfackler/rust-openssl#6277635e5c579c5842fc5f921a3b27a544a7b346"
 
 [[package]]
 name = "typeable"
 version = "0.0.1"
 source = "git+https://github.com/reem/rust-typeable#55154e1809db8ceec8f8519bdbb638c2fbd712f5"
 
 [[package]]
 name = "unsafe-any"
 version = "0.1.0"
 source = "git+https://github.com/reem/rust-unsafe-any#75cff194795447a901c1658e31629899c9c8d52f"
 
 [[package]]
 name = "url"
 version = "0.1.0"
 source = "git+https://github.com/servo/rust-url#55b18b796ef2cef5490069dd450c60c2cc2c0c1b"
 dependencies = [
- "encoding 0.1.0 (git+https://github.com/lifthrasiir/rust-encoding#97e5a56658d11e6386d0d17386560094490b1daf)",
+ "encoding 0.1.0 (git+https://github.com/lifthrasiir/rust-encoding#4368ee5d0e7599964d98f874df22c86f4005c9ae)",
 ]
 
 [[package]]
 name = "uuid"
 version = "0.0.1"
 source = "git+https://github.com/rust-lang/uuid.git#c6159089a491ff4398c6d423263a085c95092a04"
 

--- a/testing/geckodriver/src/main.rs
+++ b/testing/geckodriver/src/main.rs
@@ -1,8 +1,9 @@
+#![feature(slicing_syntax)]
 extern crate hyper;
 extern crate serialize;
 extern crate uuid;
 extern crate regex;
 
 use std::io::net::ip::Ipv4Addr;
 use httpserver::start;