Lock down nanoc, the new version is incompatible with the site for now.

doc-src/Gemfile

@@ -1,6 +1,7 @@
 source :gemcutter
 
-gem 'nanoc3'
+gem 'nanoc', "3.2.4"
+gem 'nanoc3', "3.2.4"
 gem 'asdf'
 gem 'rdiscount'
 gem 'thor'

doc-src/Gemfile.lock

@@ -10,7 +10,7 @@ GIT
 PATH
   remote: ..
   specs:
-    compass (0.13.alpha.0.48d532b)
+    compass (0.13.alpha.0.e0bb519)
       chunky_png (~> 1.2)
       fssm (>= 0.2.7)
       sass (~> 3.2.0.alpha.93)
@@ -35,10 +35,10 @@ GEM
     i18n (0.4.2)
     json (1.6.5)
     mime-types (1.17.2)
-    nanoc (3.3.2)
-      cri (~> 2.2)
-    nanoc3 (3.3.0)
-      nanoc (>= 3.3.0)
+    nanoc (3.2.4)
+      nanoc3 (>= 3.2.4)
+    nanoc3 (3.2.4)
+      cri (~> 2.0)
     nokogiri (1.5.2)
     rack (1.2.5)
     rake (0.9.2.2)
@@ -68,7 +68,8 @@ DEPENDENCIES
   haml
   json
   mime-types
-  nanoc3
+  nanoc (= 3.2.4)
+  nanoc3 (= 3.2.4)
   nokogiri
   rack
   rake