When GitHub fetch url sets to ssh like: git@github.com:steveluo/qbtest.git

the build failed with below error:

10:46:42,841 ERROR - Step 'master>checkout' is failed.
    java.lang.IllegalArgumentException
        at com.google.common.base.Preconditions.checkArgument(Preconditions.java:76)
        at com.pmease.quickbuild.plugin.scm.github.GitHubRepository.generateId(GitHubRepository.java:260)
        at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$f0771363.CGLIB$generateId$4(<generated>)
        at com.pmease.quickbuild.plugin.scm.github.GitHubRepository$$EnhancerByCGLIB$$f0771363$$FastClassByCGLIB$$a420438c.invoke(<generated>)