erro deploy capistrano

DEBUG [406a2577] Running /usr/bin/env [ -d ~/.rvm ] as suporte@172.16.45.70
DEBUG [406a2577] Command: [ -d ~/.rvm ]
DEBUG [406a2577] Finished in 0.547 seconds with exit status 1 (failed).
DEBUG [3ec3cf51] Running /usr/bin/env [ -d /usr/local/rvm ] as suporte@172.16.45.70
DEBUG [3ec3cf51] Command: [ -d /usr/local/rvm ]
DEBUG [3ec3cf51] Finished in 0.017 seconds with exit status 0 (successful).
DEBUG [e456b9fd] Running /usr/local/rvm/bin/rvm version as suporte@172.16.45.70
DEBUG [e456b9fd] Command: /usr/local/rvm/bin/rvm version
DEBUG [e456b9fd] 	rvm 1.26.11 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]
DEBUG [e456b9fd] Finished in 0.309 seconds with exit status 0 (successful).
rvm 1.26.11 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]
DEBUG [3f343f1d] Running /usr/local/rvm/bin/rvm current as suporte@172.16.45.70
DEBUG [3f343f1d] Command: /usr/local/rvm/bin/rvm current
DEBUG [3f343f1d] 	ruby-2.2.3
DEBUG [3f343f1d] Finished in 0.314 seconds with exit status 0 (successful).
ruby-2.2.3
DEBUG [f12d2b0e] Running /usr/local/rvm/bin/rvm default do ruby --version as suporte@172.16.45.70
DEBUG [f12d2b0e] Command: /usr/local/rvm/bin/rvm default do ruby --version
DEBUG [f12d2b0e] 	ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
DEBUG [f12d2b0e] Finished in 0.539 seconds with exit status 0 (successful).
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
INFO [acd61d52] Running /usr/bin/env mkdir -p /tmp/guia_de_servicos/ as suporte@172.16.45.70
DEBUG [acd61d52] Command: /usr/bin/env mkdir -p /tmp/guia_de_servicos/
INFO [acd61d52] Finished in 0.015 seconds with exit status 0 (successful).
DEBUG Uploading /tmp/guia_de_servicos/git-ssh.sh 0.0%
INFO Uploading /tmp/guia_de_servicos/git-ssh.sh 100.0%
INFO [731fb7b0] Running /usr/bin/env chmod +x /tmp/guia_de_servicos/git-ssh.sh as suporte@172.16.45.70
DEBUG [731fb7b0] Command: /usr/bin/env chmod +x /tmp/guia_de_servicos/git-ssh.sh
INFO [731fb7b0] Finished in 0.025 seconds with exit status 0 (successful).
INFO [2f7ee64a] Running /usr/bin/env git ls-remote --heads git@bitbucket.org:sincseplag/guia.git as suporte@172.16.45.70
DEBUG [2f7ee64a] Command: ( export GIT_ASKPASS="/bin/echo" GIT_SSH="/tmp/guia_de_servicos/git-ssh.sh" ; /usr/bin/env git ls-remote --heads git@bitbucket.org:sincseplag/guia.git )
DEBUG [2f7ee64a] 	f789b94af9fce6a2cf20fbcd452ef1f47e89d606	refs/heads/master
INFO [2f7ee64a] Finished in 1.453 seconds with exit status 0 (successful).
INFO [f6973e99] Running /usr/bin/env mkdir -p /var/www/rails/portal_de_servicos/production/shared /var/www/rails/portal_de_servicos/production/releases as suporte@172.16.45.70
DEBUG [f6973e99] Command: /usr/bin/env mkdir -p /var/www/rails/portal_de_servicos/production/shared /var/www/rails/portal_de_servicos/production/releases
INFO [f6973e99] Finished in 0.013 seconds with exit status 0 (successful).
INFO [8e31c38c] Running /usr/bin/env mkdir -p /var/www/rails/portal_de_servicos/production/shared/log /var/www/rails/portal_de_servicos/production/shared/tmp/pids /var/www/rails/portal_de_servicos/production/shared/tmp/cache /var/www/rails/portal_de_servicos/production/shared/tmp/sockets /var/www/rails/portal_de_servicos/production/shared/vendor/bundle /var/www/rails/portal_de_servicos/production/shared/public/system /var/www/rails/portal_de_servicos/production/shared/public/uploads /var/www/rails/portal_de_servicos/production/shared/public/assets as suporte@172.16.45.70
DEBUG [8e31c38c] Command: /usr/bin/env mkdir -p /var/www/rails/portal_de_servicos/production/shared/log /var/www/rails/portal_de_servicos/production/shared/tmp/pids /var/www/rails/portal_de_servicos/production/shared/tmp/cache /var/www/rails/portal_de_servicos/production/shared/tmp/sockets /var/www/rails/portal_de_servicos/production/shared/vendor/bundle /var/www/rails/portal_de_servicos/production/shared/public/system /var/www/rails/portal_de_servicos/production/shared/public/uploads /var/www/rails/portal_de_servicos/production/shared/public/assets
INFO [8e31c38c] Finished in 0.016 seconds with exit status 0 (successful).
DEBUG [7473f3bd] Running /usr/bin/env [ -f /var/www/rails/portal_de_servicos/production/current/REVISION ] as suporte@172.16.45.70
DEBUG [7473f3bd] Command: [ -f /var/www/rails/portal_de_servicos/production/current/REVISION ]
DEBUG [7473f3bd] Finished in 0.015 seconds with exit status 0 (successful).
DEBUG [d36613c0] Running /usr/bin/env cat /var/www/rails/portal_de_servicos/production/current/REVISION 2>/dev/null as suporte@172.16.45.70
DEBUG [d36613c0] Command: /usr/bin/env cat /var/www/rails/portal_de_servicos/production/current/REVISION 2>/dev/null
DEBUG [d36613c0] 	522e7b2
DEBUG [d36613c0] Finished in 0.019 seconds with exit status 0 (successful).
DEBUG [f98b2854] Running /usr/bin/env [ -f /var/www/rails/portal_de_servicos/production/repo/HEAD ] as suporte@172.16.45.70
DEBUG [f98b2854] Command: [ -f /var/www/rails/portal_de_servicos/production/repo/HEAD ]
DEBUG [f98b2854] Finished in 0.012 seconds with exit status 0 (successful).
INFO The repository mirror is at /var/www/rails/portal_de_servicos/production/repo
DEBUG [2cc6c4c4] Running /usr/bin/env if test ! -d /var/www/rails/portal_de_servicos/production/repo; then echo "Directory does not exist '/var/www/rails/portal_de_servicos/production/repo'" 1>&2; false; fi as suporte@172.16.45.70
DEBUG [2cc6c4c4] Command: if test ! -d /var/www/rails/portal_de_servicos/production/repo; then echo "Directory does not exist '/var/www/rails/portal_de_servicos/production/repo'" 1>&2; false; fi
DEBUG [2cc6c4c4] Finished in 0.010 seconds with exit status 0 (successful).
INFO [135be558] Running /usr/bin/env git remote update as suporte@172.16.45.70
DEBUG [135be558] Command: cd /var/www/rails/portal_de_servicos/production/repo && ( export GIT_ASKPASS="/bin/echo" GIT_SSH="/tmp/guia_de_servicos/git-ssh.sh" ; /usr/bin/env git remote update )
DEBUG [135be558] 	Fetching origin
DEBUG [135be558] 	repository access denied.
DEBUG [135be558] 	fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
DEBUG [135be558] 	error: Could not fetch origin
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as suporte@172.16.45.70: git exit status: 1
git stdout: Fetching origin
git stderr: repository access denied.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
error: Could not fetch origin

SSHKit::Command::Failed: git exit status: 1
git stdout: Fetching origin
git stderr: repository access denied.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
error: Could not fetch origin

Tasks: TOP => git:create_release => git:update
(See full trace by running task with --trace)
The deploy has failed with an error: Exception while executing as suporte@172.16.45.70: git exit status: 1
git stdout: Fetching origin
git stderr: repository access denied.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
error: Could not fetch origin