[INFO] cloning repository https://github.com/ookiineko/rustc-1.54.0-cygwin-dirty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ookiineko/rustc-1.54.0-cygwin-dirty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fookiineko%2Frustc-1.54.0-cygwin-dirty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fookiineko%2Frustc-1.54.0-cygwin-dirty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ee2373183c7996e0993e34432d041d34f1e1042
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/ookiineko/rustc-1.54.0-cygwin-dirty
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.