[INFO] cloning repository https://github.com/zhuzhenhua2020/substrate_learn_phase2 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhuzhenhua2020/substrate_learn_phase2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhuzhenhua2020%2Fsubstrate_learn_phase2", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhuzhenhua2020%2Fsubstrate_learn_phase2'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9dc2a15603b20325ea84e7424dfada1b9c507323 [ERROR] this task or one of its parent failed! [ERROR] command failed: exit status: 101 [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.