[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]    b3a566d6..89dc1e06  delta_scanner -> delta_scanner
[INFO] [stderr]    86a8f94d..7e914066  master        -> master
[INFO] [stderr]    10f9a2a1..61465d91  release-3.1   -> release-3.1
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e9140667cda003b5ddf51f4acf8bec2cd76dd22
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.