Function build_detached_docker_completion_script 

pub fn build_detached_docker_completion_script(
    container_name: &str,
    policy: DockerContainerCleanupPolicy,
    log_path: Option<&PathBuf>,
    execution_id: Option<&str>,
) -> String

Build the shell the detached completion watcher runs after the container is gone.

Order matters. The post-mortem block and the removal note go in before the footer, so the Finished:/Exit Code: pair stays the last thing in the log (issue #171.2); the store is finalized after the footer, so a record only becomes terminal once its log is complete (issue #170.1).

It only does any of that once the container has really exited: the return of docker logs -f / docker wait is not proof of exit (issue #174). A container that is somehow still running afterwards is never removed, gets no Exit Code: footer and is never finalized — its record stays executing.