error: unknown rename rule `rename_all = "abc"`, expected one of "lowercase", "UPPERCASE", "PascalCase", "camelCase", "snake_case", "SCREAMING_SNAKE_CASE", "kebab-case", "SCREAMING-KEBAB-CASE"
 --> tests/ui/rename/container_unknown_rename_rule.rs:4:22
  |
3 | #[derive(Serialize)]
  |          --------- in this derive macro expansion
4 | #[serde(rename_all = "abc")]
  |                      ^^^^^
  |
  = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)