[INFO] crate solana-stake-tests 0.20.5 is already in cache
[ERROR] this task or one of its parent failed!
[ERROR] command `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.