message: Remove a usage of `get_list`
  This callsite doesn't need the full power of `get_list`, knowing the
  definition path of each element along the list.
diff: @@ -60,9 +60,7 @@ fn aliased_command(config: &Config, command: &str) -> CargoResult<Option<Vec<Str
  .collect(),
  ),
  Ok(None) => None,
  - Err(_) => config
  - .get_list(&alias_name)?
  - .map(|record| record.val.iter().map(|s| s.0.to_string()).collect()),
  + Err(_) => config.get::<Option<Vec<String>>>(&alias_name)?,
  };
  let result = user_alias.or_else(|| match command {
  "b" => Some(vec!["build".to_string()]),
  