> git submodule init # timeout=10
 > git submodule sync # timeout=10
 > git config --get remote.origin.url # timeout=10
 > git submodule init # timeout=10
 > git config -f .gitmodules --get-regexp ^submodule\.(.+)\.url # timeout=10
 > git config --get submodule.BuildScripts.url # timeout=10
hudson.plugins.git.GitException: Command "git config --get submodule.BuildScripts.url" returned status code 1:
stdout: 
stderr: 
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2846)
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2771)
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2766)
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:2059)
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:2071)
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getSubmoduleUrl(CliGitAPIImpl.java:1633)
	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl$7.execute(CliGitAPIImpl.java:1550)
	at PluginClassLoader for git//hudson.plugins.git.extensions.impl.SubmoduleOption.onCheckoutCompleted(SubmoduleOption.java:196)
Caused: java.io.IOException: Could not perform submodule update
	at PluginClassLoader for git//hudson.plugins.git.extensions.impl.SubmoduleOption.onCheckoutCompleted(SubmoduleOption.java:201)
	at PluginClassLoader for git//hudson.plugins.git.GitSCM._checkout(GitSCM.java:1396)
	at PluginClassLoader for git//hudson.plugins.git.GitSCM.checkout(GitSCM.java:1278)
	at hudson.scm.SCM.checkout(SCM.java:540)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1250)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:649)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:85)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:522)
	at hudson.model.Run.execute(Run.java:1840)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
	at hudson.model.ResourceController.execute(ResourceController.java:101)
	at hudson.model.Executor.run(Executor.java:446)
Finished: FAILURE