error: `conf_file` value must be a string
 --> $DIR/conf_path_non_string.rs:3:28
  |
3 | #![plugin(clippy(conf_file=42))]
  |                            ^^
  |
note: Clippy will use default configuration
 --> $DIR/conf_path_non_string.rs:3:28
  |
3 | #![plugin(clippy(conf_file=42))]
  |                            ^^

error: aborting due to previous error(s)