Travis Issues

gistfile1.txt

0.06s$ Installing caching utilities
0.81sattempting to download cache archive
fetching master/cache--python-2.7.tgz
found cache
0.26s/home/travis/.casher/bin/casher:65:in `add': undefined local variable or method `url' for #<Casher:0x000000023cd3e8> (NameError)
	from /home/travis/.casher/bin/casher:35:in `block in run'
	from /home/travis/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/timeout.rb:69:in `timeout'
	from /home/travis/.casher/bin/casher:35:in `run'
	from /home/travis/.casher/bin/casher:120:in `<main>'
The command "rvm 1.9.3 --fuzzy do $CASHER_DIR/bin/casher add $HOME/.cache/pip" failed and exited with 1 during .


########## .travis.yml stanza
# Removing this block avoided the issue

cache:
  directories:
  - $HOME/.cache/pip