fix tmpdir because chromeos /tmp is mounted noexec

skip tests because at least one test wants to write to /

packages/go.rb

@@ -7,7 +7,7 @@ class Go < Package
 
   def self.build
     FileUtils.cd('src') do
-      system "./all.bash"
+      system "TMPDIR=/usr/local/tmp ./make.bash"
     end
   end