[INFO] updating cached repository https://github.com/tikv/tikv
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/tikv/tikv
[INFO] [stderr]    464164ddd..e26bc916c  master      -> master
[INFO] [stderr]    191cb878b..dcbf45ae8  release-3.1 -> release-3.1
[INFO] [stderr]    8a4f34fae..19690cbf6  release-4.0 -> release-4.0
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e26bc916c330fec127ca250fc065c6ffb56f766c
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.