[INFO] cloning repository https://github.com/rust-lang-nursery/rustup.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/rustup.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frustup.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frustup.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0b6dc510c45f0ae1f9a4f67b35ad62cf34bee21
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit code: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.