[INFO] cloning repository https://github.com/promethiumchain/rust-promethium
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/promethiumchain/rust-promethium" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpromethiumchain%2Frust-promethium", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpromethiumchain%2Frust-promethium'...
[INFO] [stderr] fatal: credential helper '/workspace/cargo-home/bin/git-credential-null' told us to quit
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:missing-git-repository
[ERROR] caused by: can't fetch private git repositories
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.