Jenkins git-client-plugin v1.6.1 is broken..

If you've upgraded to the latest git-client-plugin (v1.6.1) and are reliant on HTTP-based credentials, you may have noticed this error message:

stderr: error: cannot run /bin/echo : No such file or directory
fatal: could not read Username for 'https://github.com': No such device or address

 at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1086)
 at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:968)
 at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$200(CliGitAPIImpl.java:71)
 at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:197)
 at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:623)
 ... 10 more

The issue has already been reported and the fix has already been implemented in the GitHub repo, but it hasn't made its way to an official release.

 The current workaround is to download the latest plugin here: https://jenkins.ci.cloudbees.com/job/plugins/job/git-client-plugin/

The red error message within Jenkins "Failed to connect to repository : Command "git config --local credential.helper store" may appear, but so long as the Console Output shows the checkout process working, you can safely ignore it.