[INFO] cloning repository https://github.com/nKumar2015/mockex-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nKumar2015/mockex-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FnKumar2015%2Fmockex-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FnKumar2015%2Fmockex-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 771c6d255d5eb8a6a0aa191f11807f3f355a65cc
[INFO] testing nKumar2015/mockex-engine against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FnKumar2015%2Fmockex-engine" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-3-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'remote.origin.url' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FnKumar2015%2Fmockex-engine'


failed to checkout https://github.com/nKumar2015/mockex-engine

Caused by:
    command failed: exit status: 128