message: Log index API issues as warnings
diff: use chrono::{DateTime, Utc};
  use failure::err_msg;
  -use log::info;
  +use log::warn;
  use reqwest::header::{HeaderValue, ACCEPT, USER_AGENT};
  use semver::Version;
  use serde::Deserialize;
  @@ -59,12 +59,12 @@ impl Api {
  let (release_time, yanked, downloads) = self
  .get_release_time_yanked_downloads(name, version)
  .unwrap_or_else(|err| {
  - info!("Failed to get crate data for {}-{}: {}", name, version, err);
  + warn!("Failed to get crate data for {}-{}: {}", name, version, err);
  (Utc::now(), false, 0)
  });
  let owners = self.get_owners(name).unwrap_or_else(|err| {
  - info!("Failed to get owners for {}-{}: {}", name, version, err);
  + warn!("Failed to get owners for {}-{}: {}", name, version, err);
  Vec::new()
  });
  