Update codegen for latest nightly.

codegen/build.rs

@@ -8,7 +8,7 @@ use ansi_term::Color::{Red, Yellow, Blue, White};
 use version_check::{is_nightly, is_min_version, is_min_date};
 
 // Specifies the minimum nightly version needed to compile Rocket's codegen.
-const MIN_DATE: &'static str = "2017-02-26";
+const MIN_DATE: &'static str = "2017-03-19";
 const MIN_VERSION: &'static str = "1.17.0-nightly";
 
 // Convenience macro for writing to stderr.

codegen/src/lints/mod.rs

@@ -229,7 +229,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for RocketLint {
         let attr_value = kind.attrs().iter().filter_map(|attr| {
             match attr.check_name(ROUTE_ATTR) {
                 false => None,
-                true => attr.value.meta_item_list().and_then(|list| list[0].name())
+                true => attr.meta_item_list().and_then(|list| list[0].name())
             }
         }).next();