error[E0106]: missing lifetime specifier
    --> src/ondisk.rs:7231:95
     |
7231 |     fn deserialize<D>(deserializer: D) -> std::result::Result<Self, <D as serde::Deserializer<'_>>::Error>
     |                                                                                               ^^ expected named lifetime parameter
     |
     = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'de` lifetime
     |
7231 |     fn deserialize<D>(deserializer: D) -> std::result::Result<Self, <D as serde::Deserializer<'de>>::Error>
     |                                                                                               ~~~