FailedConsole Output

Started by upstream project "geogig-1.1.x" build number 26
originally caused by:
 Started by an SCM change
Building in workspace /home/hudson/genie.geogig/.jenkins/jobs/geogig-1.1.x-deploy/workspace
 > /usr/local/bin/git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
 > /usr/local/bin/git config remote.origin.url # timeout=10
Fetching upstream changes from
 > /usr/local/bin/git --version # timeout=10
Setting http proxy:
 > /usr/local/bin/git fetch --tags --progress +refs/heads/*:refs/remotes/origin/*
ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from
	at hudson.plugins.git.GitSCM.fetchFrom(
	at hudson.plugins.git.GitSCM.retrieveChanges(
	at hudson.plugins.git.GitSCM.checkout(
	at hudson.scm.SCM.checkout(
	at hudson.model.AbstractProject.checkout(
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(
	at jenkins.scm.SCMCheckoutStrategy.checkout(
	at hudson.model.AbstractBuild$
	at hudson.model.Run.execute(
	at hudson.model.ResourceController.execute(
Caused by: hudson.plugins.git.GitException: Command "/usr/local/bin/git fetch --tags --progress +refs/heads/*:refs/remotes/origin/*" returned status code 128:
stderr: remote: GitHub is offline for maintenance. See for more info.
fatal: unable to access '': The requested URL returned error: 503

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(
	at hudson.plugins.git.GitSCM.fetchFrom(
	... 11 more
ERROR: null
Started calculate disk usage of build
Finished Calculation of disk usage of build in 0 seconds
Started calculate disk usage of workspace
Finished Calculation of disk usage of workspace in 0 seconds
Warning: you have no plugins providing access control for builds, so falling back to legacy behavior of permitting any downstream builds to be triggered
Finished: FAILURE