librustpkg: don't clobber the crate attributes for the pkgid

Author: emberian

src/librustdoc/clean.rs

@@ -83,7 +83,7 @@ impl Clean<Crate> for visit_ast::RustdocVisitor {
 
         Crate {
             name: match find_pkgid(self.attrs) {
-                Some(n) => n,
+                Some(n) => n.name,
                 None => fail!("rustdoc requires a `pkgid` crate attribute"),
             },
             module: Some(self.module.clean()),

src/librustpkg/util.rs

@@ -300,7 +300,7 @@ pub fn compile_input(context: &BuildContext,
                                                  pkg_id.version.to_str()).to_managed());
 
         debug!("pkgid attr: {:?}", pkgid_attr);
-        crate.attrs = ~[attr::mk_attr(pkgid_attr)];
+        crate.attrs.push(attr::mk_attr(pkgid_attr));
     }
 
     debug!("calling compile_crate_from_input, workspace = {},