为什么我不能将我的gem发布到github？

我在用珠宝商出版宝石。我即将把gem发布到github，现在正在发生这样的事情：

$ sudo rake release
Password:
(in /Users/***/code/testgem)
Pushing master to origin
rake aborted!
git push "origin" "master"  2>&1:Permission denied (publickey).
fatal: The remote end hung up unexpectedly

我已验证我的SSH密钥是否正确连接到github：

$ ssh -vT git@github.com
OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
[lots of stuff]

Hi *****! You've successfully authenticated, but GitHub does not provide shell access.
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2384, received 2888 bytes, in 0.1 seconds
Bytes per second: sent 37829.8, received 45827.4
debug1: Exit status 1

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我在输入完问题之前就解决了这个问题：）

“rake release”不适用于sudo