Dec 12 11:12:37.779 ERRO this task or one of its parent failed!
Dec 12 11:12:37.779 ERRO failed to generate lockfile for multi-producer-sink-0.5.2
Dec 12 11:12:37.779 ERRO caused by: command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+3a75e80557a103497cffbcab395a2f37061a77ea-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed
Dec 12 11:12:37.779 ERRO