diff --git a/.travis.yml b/.travis.yml
index dacb3065..89206961 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ matrix:
           env: FEATURES="--features nightly"
         - rust: beta
         - rust: stable
+        - rust: 1.10.0
 
 cache:
     apt: true
diff --git a/Cargo.toml b/Cargo.toml
index 71d70841..420b3a27 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,6 @@ license = "MIT"
 authors = ["Sean McArthur <sean.monstar@gmail.com>"]
 keywords = ["http", "hyper", "hyperium"]
 categories = ["web-programming::http-client", "web-programming::http-server"]
-build = "build.rs"
 
 include = [
   "build.rs",
@@ -41,9 +40,6 @@ num_cpus = "1.0"
 pretty_env_logger = "0.1"
 spmc = "0.2"
 
-[build-dependencies]
-rustc_version = "0.1"
-
 [features]
 default = []
 nightly = []
diff --git a/build.rs b/build.rs
deleted file mode 100644
index e886b726..00000000
--- a/build.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-extern crate rustc_version as rustc;
-
-fn main() {
-    if rustc::version_matches(">= 1.9") {
-        println!("cargo:rustc-cfg=has_deprecated");
-    }
-}
diff --git a/src/header/common/accept_language.rs b/src/header/common/accept_language.rs
index aa31cf94..7ba3bb01 100644
--- a/src/header/common/accept_language.rs
+++ b/src/header/common/accept_language.rs
@@ -58,9 +58,9 @@ header! {
         test_header!(
             test2, vec![b"en-US, en; q=0.5, fr"],
             Some(AcceptLanguage(vec![
-                qitem(langtag!(en;;;US)),
-                QualityItem::new(langtag!(en), Quality(500)),
-                qitem(langtag!(fr)),
+                qitem("en-US".parse().unwrap()),
+                QualityItem::new("en".parse().unwrap(), Quality(500)),
+                qitem("fr".parse().unwrap()),
         ])));
     }
 }
diff --git a/src/header/common/host.rs b/src/header/common/host.rs
index 3f95d63f..94f8ed10 100644
--- a/src/header/common/host.rs
+++ b/src/header/common/host.rs
@@ -24,7 +24,9 @@ use header::parsing::from_one_raw_str;
 ///
 /// let mut headers = Headers::new();
 /// headers.set(
-///     Host::new("hyper.rs", 8080)
+///     // In Rust 1.12+
+///     // Host::new("hyper.rs", 8080)
+///     Host::new("hyper.rs", Some(8080))
 /// );
 /// ```
 #[derive(Clone, PartialEq, Debug)]
@@ -113,13 +115,13 @@ mod tests {
 
 
         let host = Header::parse_header(&vec![b"foo.com:8080".to_vec()].into());
-        assert_eq!(host.ok(), Some(Host::new("foo.com", 8080)));
+        assert_eq!(host.ok(), Some(Host::new("foo.com", Some(8080))));
 
         let host = Header::parse_header(&vec![b"foo.com".to_vec()].into());
         assert_eq!(host.ok(), Some(Host::new("foo.com", None)));
 
         let host = Header::parse_header(&vec![b"[::1]:8080".to_vec()].into());
-        assert_eq!(host.ok(), Some(Host::new("[::1]", 8080)));
+        assert_eq!(host.ok(), Some(Host::new("[::1]", Some(8080))));
 
         let host = Header::parse_header(&vec![b"[::1]".to_vec()].into());
         assert_eq!(host.ok(), Some(Host::new("[::1]", None)));
diff --git a/src/header/common/link.rs b/src/header/common/link.rs
index d6cafa60..f13ac3ae 100644
--- a/src/header/common/link.rs
+++ b/src/header/common/link.rs
@@ -982,7 +982,7 @@ mod tests {
             .push_rel(RelationType::Previous)
             .set_anchor("../anchor/example/")
             .push_rev(RelationType::Next)
-            .push_href_lang(langtag!(de))
+            .push_href_lang("de".parse().unwrap())
             .push_media_desc(MediaDesc::Screen)
             .set_title("previous chapter")
             .set_title_star("title* unparsed")
@@ -1042,7 +1042,7 @@ mod tests {
             .push_rel(RelationType::Previous)
             .set_anchor("/anchor/example/")
             .push_rev(RelationType::Next)
-            .push_href_lang(langtag!(de))
+            .push_href_lang("de".parse().unwrap())
             .push_media_desc(MediaDesc::Screen)
             .set_title("previous chapter")
             .set_title_star("title* unparsed")
diff --git a/src/header/parsing.rs b/src/header/parsing.rs
index 84efe44a..8706b32d 100644
--- a/src/header/parsing.rs
+++ b/src/header/parsing.rs
@@ -177,10 +177,11 @@ mod percent_encoding_http {
 mod tests {
     use header::shared::Charset;
     use super::{ExtendedValue, parse_extended_value};
+    use language_tags::LanguageTag;
 
     #[test]
     fn test_parse_extended_value_with_encoding_and_language_tag() {
-        let expected_language_tag = langtag!(en);
+        let expected_language_tag = "en".parse::<LanguageTag>().unwrap();
         // RFC 5987, Section 3.2.2
         // Extended notation, using the Unicode character U+00A3 (POUND SIGN)
         let result = parse_extended_value("iso-8859-1'en'%A3%20rates");
diff --git a/src/http/h1/decode.rs b/src/http/h1/decode.rs
index e22b7cb1..293b2102 100644
--- a/src/http/h1/decode.rs
+++ b/src/http/h1/decode.rs
@@ -458,7 +458,7 @@ mod tests {
         let content_len = content.len();
         for block_at in 0..content_len {
             let actual = read_async(decoder.clone(), content.as_bytes(), block_at);
-            assert_eq!(expected, &actual, "Failed async. Blocking at {}", block_at);
+            assert_eq!(expected, &actual) //, "Failed async. Blocking at {}", block_at);
         }
     }
 
diff --git a/src/http/mod.rs b/src/http/mod.rs
index c1a40119..9b9839e1 100644
--- a/src/http/mod.rs
+++ b/src/http/mod.rs
@@ -131,7 +131,7 @@ pub trait Http1Transaction {
     fn should_set_length(head: &MessageHead<Self::Outgoing>) -> bool;
 }
 
-type ParseResult<T> = ::Result<Option<(MessageHead<T>, usize)>>;
+pub type ParseResult<T> = ::Result<Option<(MessageHead<T>, usize)>>;
 
 struct DebugTruncate<'a>(&'a [u8]);
 
diff --git a/src/lib.rs b/src/lib.rs
index 5ffd1560..2db6f368 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,7 +18,7 @@ extern crate bytes;
 #[macro_use] extern crate futures;
 extern crate futures_cpupool;
 extern crate httparse;
-#[cfg_attr(test, macro_use)] extern crate language_tags;
+extern crate language_tags;
 #[macro_use] extern crate log;
 #[macro_use] pub extern crate mime;
 extern crate base64;
@@ -56,13 +56,6 @@ macro_rules! unimplemented {
     });
 }
 
-macro_rules! deprecated {
-    (#[$note:meta] $i:item) => (
-        #[cfg_attr(has_deprecated, $note)]
-        $i
-    );
-}
-
 #[cfg(test)]
 mod mock;
 pub mod client;
diff --git a/src/uri.rs b/src/uri.rs
index c1f72736..1e04b2a2 100644
--- a/src/uri.rs
+++ b/src/uri.rs
@@ -553,6 +553,6 @@ fn test_uri_to_origin_form() {
 
     for case in cases {
         let uri = Uri::from_str(case.0).unwrap();
-        assert_eq!(origin_form(&uri), case.1, "{:?}", case);
+        assert_eq!(origin_form(&uri), case.1); //, "{:?}", case);
     }
 }
diff --git a/tests/client.rs b/tests/client.rs
index 30c9e463..e93426c8 100644
--- a/tests/client.rs
+++ b/tests/client.rs
@@ -78,7 +78,7 @@ macro_rules! test {
                 while n < buf.len() && n < expected.len() {
                     n += inc.read(&mut buf[n..]).unwrap();
                 }
-                assert_eq!(s(&buf[..n]), expected, "expected is invalid");
+                assert_eq!(s(&buf[..n]), expected);
 
                 inc.write_all($server_reply.as_ref()).unwrap();
                 let _ = tx.send(());
@@ -89,9 +89,9 @@ macro_rules! test {
             let work = res.join(rx).map(|r| r.0);
 
             let res = core.run(work).unwrap();
-            assert_eq!(res.status(), StatusCode::$client_status, "status is invalid");
+            assert_eq!(res.status(), StatusCode::$client_status);
             $(
-                assert_eq!(res.headers().get(), Some(&$response_headers), "headers are invalid");
+                assert_eq!(res.headers().get(), Some(&$response_headers));
             )*
         }
     );