Adding passphrase to deploy key causes Permission Denied Error

[vrocha]

[] out: ID: project_repo
[] out: Function: git.latest
[] out: Name: git@github.com:victor-rocha/radiant.git
[] out: Result: False
[] out: Comment: Cloning into '/var/www/radiant/source'...
[] out: Warning: Permanently added the RSA host key for IP address '192.30.252.129' to the list of known hosts.
[] out:
[] out: Permission denied (publickey).
[] out:
[] out: fatal: Could not read from remote repository.
[] out:
[] out: Please make sure you have the correct access rights
[] out: and the repository exists.
[] out: Started: 04:49:45.926525
[] out: Duration: 95.251 ms
[52.5.81.253] out: Changes:

[dpoirier]

I can't think of anything that the project template could do in this situation. Typically, deploy keys are not given passphrases because of this kind of problem.