`rvm list remote` not showing binaries for Ubuntu 14.04 box

I'm trying to provision a dev box with rvm on Ubuntu 14.04 (via Vagrant and Ansible). I've installed rvm:

gpg --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3
\curl -sSL https://get.rvm.io | bash -s stable

When I try to rvm install 1.9.3 or `rvm install ruby-1.9.3-p551 it says that no binaries can be found, and it'll compile from source.

$ rvm install ruby-1.9.3-p551
Searching for binary rubies, this might take some time.
No binary rubies available for: ubuntu/14.04/x86_64/ruby-1.9.3-p551.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.

There are binaries available, though: http://ift.tt/1vq0qM1 & http://ift.tt/1waja9i

Doing rvm --debug list remote yields:

__list_remote_all http://ift.tt/1wajcOy ubuntu/14.04/x86_64
__list_remote_all1 http://ift.tt/1vq0qM4 downloads
__list_remote_for_s3-0 http://ift.tt/1wajd4Q
Running(15): curl --fail --location --max-redirs 10 --max-time 1800 --connect-timeout 30 --retry-delay 2 --retry 3 -s http://ift.tt/1wajd4Q
__list_remote_for_s3-1 http://ift.tt/1wajapI
Running(15): curl --fail --location --max-redirs 10 --max-time 1800 --connect-timeout 30 --retry-delay 2 --retry 3 -s http://ift.tt/1wajapI
__list_remote_all2 http://ift.tt/1vq0sDz ubuntu/14.04/x86_64
__list_remote_for_s3-0 http://ift.tt/1wajd52
Running(15): curl --fail --location --max-redirs 10 --max-time 1800 --connect-timeout 30 --retry-delay 2 --retry 3 -s http://ift.tt/1wajd52
__list_remote_all3 http://ift.tt/1vq0sDB ubuntu/14.04/x86_64

# Remote rubies available:

jruby-0.9.0
jruby-1.6.6
jruby-1.6.7
jruby-1.6.7.2
jruby-1.6.8
jruby-1.7.0
jruby-1.7.0.preview1
jruby-1.7.0.preview2
jruby-1.7.0.RC1
jruby-1.7.0.RC2
jruby-1.7.1
jruby-1.7.10
jruby-1.7.11
jruby-1.7.12
jruby-1.7.13
jruby-1.7.14
jruby-1.7.15
jruby-1.7.16
jruby-1.7.16.1
jruby-1.7.2
jruby-1.7.3
jruby-1.7.4
jruby-1.7.5
jruby-1.7.6
jruby-1.7.7
jruby-1.7.8
jruby-1.7.9
rubinius-2.3.0

# * - installed already

# To download and install: rvm install {name} --binary

__rvm_rm_rf already gone: /home/vagrant/.rvm/tmp/18526*

Using rvm mount does work, but I'd like to avoid that as I'm trying to keep this vagrant box as generic as possible.

$ rvm mount -r http://ift.tt/1wajaGb
http://ift.tt/1wajaGb - #configure
ruby-1.9.3-p551 - #download
% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                             Dload  Upload   Total   Spent    Left  Speed
100 13.3M  100 13.3M    0     0   343k      0  0:00:39  0:00:39 --:--:--  350k
ruby-1.9.3-p551 - #validate archive
ruby-1.9.3-p551 - #extract
ruby-1.9.3-p551 - #validate binary
ruby-1.9.3-p551 - #setup
ruby-1.9.3-p551 - #gemset created /home/vagrant/.rvm/gems/ruby-1.9.3-p551@global
ruby-1.9.3-p551 - #importing gemset         /home/vagrant/.rvm/gemsets/global.gems....................................
ruby-1.9.3-p551 - #generating global wrappers........
ruby-1.9.3-p551 - #gemset created /home/vagrant/.rvm/gems/ruby-1.9.3-p551
ruby-1.9.3-p551 - #importing gemsetfile /home/vagrant/.rvm/gemsets/default.gems evaluated to empty gem list
ruby-1.9.3-p551 - #generating default wrappers......

I'm not quite sure what I'm doing wrong, but I'm sure I am doing something wrong.