Max attempts reached for git remote update; giving up.

Example:
http://logs.openstack.org/57/138657/4/gate/gate-tempest-dsvm-full/c3da4e4/logs/devstack-gate-setup-workspace-new.txt.gz

Symptom:
Console.html will show:
2015-02-25 19:35:44.445 | /opt/stack/new/devstack-gate/devstack-vm-gate.sh: line 433: cd: /opt/stack/new/devstack: No such file or directory

Cause: git operation to create that directory is failing
2015-02-25 19:33:10.361 | Initialized empty Git repository in /opt/stack/new/devstack-gate/.git/
2015-02-25 19:33:43.287 | + cd devstack-gate
2015-02-25 19:33:43.289 | + git_remote_set_url origin https://git.openstack.org/openstack-infra/devstack-gate
2015-02-25 19:33:43.291 | + git remote set-url origin https://git.openstack.org/openstack-infra/devstack-gate
2015-02-25 19:33:43.293 | ++ echo devstack-gate
2015-02-25 19:33:43.296 | ++ tr '[:lower:]' '[:upper:]'
2015-02-25 19:33:43.298 | ++ tr - _
2015-02-25 19:33:43.301 | ++ sed 's/[^A-Z_]//'
2015-02-25 19:33:43.303 | + local uc_project=DEVSTACK_GATE
2015-02-25 19:33:43.305 | + local 'project_branch_var=$OVERRIDE_DEVSTACK_GATE_PROJECT_BRANCH'
2015-02-25 19:33:43.307 | ++ eval echo '$OVERRIDE_DEVSTACK_GATE_PROJECT_BRANCH'
2015-02-25 19:33:43.309 | +++ echo
2015-02-25 19:33:43.311 | + local project_branch=
2015-02-25 19:33:43.313 | + [[ '' != '' ]]
2015-02-25 19:33:43.315 | ++ echo refs/zuul/master/Ze8fab3e949f44fcfbac973371ee63122
2015-02-25 19:33:43.317 | ++ sed -e s,master,master,
2015-02-25 19:33:43.319 | + OVERRIDE_ZUUL_REF=refs/zuul/master/Ze8fab3e949f44fcfbac973371ee63122
2015-02-25 19:33:43.321 | + git_remote_update
2015-02-25 19:33:43.322 | + MAX_ATTEMPTS=3
2015-02-25 19:33:43.324 | + COUNT=0
2015-02-25 19:33:43.326 | + timeout -k 1m 5m git remote update
2015-02-25 19:33:43.328 | timeout: invalid option -- 'k'
2015-02-25 19:33:43.329 | Try `timeout --help' for more information.
2015-02-25 19:33:43.331 | + COUNT=1
2015-02-25 19:33:43.333 | + echo 'git remote update failed.'
2015-02-25 19:33:43.335 | git remote update failed.
2015-02-25 19:33:43.337 | + '[' 1 -eq 3 ']'
2015-02-25 19:33:43.339 | + SLEEP_TIME=72
2015-02-25 19:33:43.341 | + echo 'sleep 72 before retrying.'
2015-02-25 19:33:43.342 | sleep 72 before retrying.
2015-02-25 19:33:43.344 | + sleep 72
2015-02-25 19:34:55.298 | + timeout -k 1m 5m git remote update
2015-02-25 19:34:55.300 | timeout: invalid option -- 'k'
2015-02-25 19:34:55.302 | Try `timeout --help' for more information.
2015-02-25 19:34:55.304 | + COUNT=2
2015-02-25 19:34:55.306 | + echo 'git remote update failed.'
2015-02-25 19:34:55.308 | git remote update failed.
2015-02-25 19:34:55.310 | + '[' 2 -eq 3 ']'
2015-02-25 19:34:55.312 | + SLEEP_TIME=49
2015-02-25 19:34:55.314 | + echo 'sleep 49 before retrying.'
2015-02-25 19:34:55.316 | sleep 49 before retrying.
2015-02-25 19:34:55.318 | + sleep 49
2015-02-25 19:35:44.301 | + timeout -k 1m 5m git remote update
2015-02-25 19:35:44.303 | timeout: invalid option -- 'k'
2015-02-25 19:35:44.305 | Try `timeout --help' for more information.
2015-02-25 19:35:44.307 | + COUNT=3
2015-02-25 19:35:44.308 | + echo 'git remote update failed.'
2015-02-25 19:35:44.310 | git remote update failed.
2015-02-25 19:35:44.312 | + '[' 3 -eq 3 ']'
2015-02-25 19:35:44.314 | + echo 'Max attempts reached for git remote update; giving up.'
2015-02-25 19:35:44.316 | Max attempts reached for git remote update; giving up.
2015-02-25 19:35:44.318 | + exit 1