fatal: could not read Username for 'https://github.com': Device not configured push crontab

Shell
# .git/config
[core]
        repositoryformatversion = 0
        filemode = true
        bare = false
        logallrefupdates = true
        ignorecase = true
        precomposeunicode = true
[remote "origin"]
		# change this: 
        # url = https://github.com/username/reponame.git
        # for this:
        url =  [email protected]:username/reponame.git
        fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
        remote = origin
        merge = refs/heads/master
Source

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