Commits on Jul 11, 2023

1. Remove pre-NLL borrow checker workarounds …

   NLL has been in use since Rust 1.31 (for edition 2018+) or Rust
   1.36 (for edition 2015).
   
       error[E0505]: cannot move out of `json` because it is borrowed
          --> src/raw.rs:184:29
           |
       180 |             let borrowed = ::from_str::<&Self>(&json)?;
           |                                                 ---- borrow of `json` occurs here
       ...
       184 |         Ok(Self::from_owned(json.into_boxed_str()))
           |                             ^^^^ move out of `json` occurs here
   
       error[E0499]: cannot borrow `self.formatter` as mutable more than once at a time
          --> src/ser.rs:453:13
           |
       444 |                 formatter: &mut self.formatter,
           |                                 -------------- first mutable borrow occurs here
       ...
       453 |             self.formatter
           |             ^^^^^^^^^^^^^^ second mutable borrow occurs here
       ...
       456 |     }
           |     - first borrow ends here
   
       error[E0499]: cannot borrow `self.writer` as mutable more than once at a time
          --> src/ser.rs:454:34
           |
       443 |                 writer: &mut self.writer,
           |                              ----------- first mutable borrow occurs here
       ...
       454 |                 .end_string(&mut self.writer)
           |                                  ^^^^^^^^^^^ second mutable borrow occurs here
       ...
       456 |     }
           |     - first borrow ends here

   

   dtolnay committed Jul 11, 2023
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