Capistrano Errors

sadface.log

$ cap deploy:cold
  * executing `deploy:cold'
  * executing `deploy:update'
 ** transaction: start
  * executing `deploy:update_code'
    updating the cached checkout on all servers
    executing locally: "git ls-remote git@github.com:danhere/nests.git master"
    command finished in 1204ms
  * executing "if [ -d ~/apps/nests/shared/cached-copy ]; then cd ~/apps/nests/shared/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard fd3b5076669f626edf5bef911dfb678a5398ca09 && git clean -q -d -x -f; else git clone -q git@github.com:danhere/nests.git ~/apps/nests/shared/cached-copy && cd ~/apps/nests/shared/cached-copy && git checkout -q -b deploy fd3b5076669f626edf5bef911dfb678a5398ca09; fi"
    servers: ["meettimes.com"]
Password: 
    [meettimes.com] executing command
 ** [meettimes.com :: err] Host key verification failed.
 ** [meettimes.com :: err] fatal: The remote end hung up unexpectedly
    command finished in 435ms
*** [deploy:update_code] rolling back
  * executing "rm -rf ~/apps/nests/releases/20111024024653; true"
    servers: ["meettimes.com"]
    [meettimes.com] executing command
    command finished in 123ms
failed: "sh -c 'if [ -d ~/apps/nests/shared/cached-copy ]; then cd ~/apps/nests/shared/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard fd3b5076669f626edf5bef911dfb678a5398ca09 && git clean -q -d -x -f; else git clone -q git@github.com:danhere/nests.git ~/apps/nests/shared/cached-copy && cd ~/apps/nests/shared/cached-copy && git checkout -q -b deploy fd3b5076669f626edf5bef911dfb678a5398ca09; fi'" on meettimes.com