message: try to update to the latest nightly on every build
diff: @@ -77,13 +77,11 @@ impl RustwideBuilder {
  name: "nightly".into(),
  };
  - let mut builder = RustwideBuilder {
  + Ok(RustwideBuilder {
  workspace,
  toolchain,
  rustc_version: String::new(),
  - };
  - builder.update_toolchain()?;
  - Ok(builder)
  + })
  }
  fn update_toolchain(&mut self) -> Result<()> {
  @@ -215,6 +213,9 @@ impl RustwideBuilder {
  if !doc_builder.should_build(name, version) {
  return Ok(false);
  }
  +
  + self.update_toolchain()?;
  +
  info!("building package {} {}", name, version);
  let conn = connect_db()?;
  