Aug 10 17:43:39.762 ERRO this task or one of its parent failed!
Aug 10 17:43:39.762 ERRO failed to generate lockfile for rust-lang-nursery/rustup.rs
Aug 10 17:43:39.762 ERRO caused by: unable to generate lockfile for rust-lang-nursery/rustup.rs
Aug 10 17:43:39.762 ERRO caused by: command `"docker" "start" "-a" "2d504464018970d2387fd910f3e5fb06ee151a33ba71291dd2d0f55320fa3d90"` failed