80                 b'\t' => f.write_str("\\t")?,  in fmt()
81                 b'\n' => f.write_str("\\n")?,  in fmt()
82                 b'\r' => f.write_str("\\r")?,  in fmt()
113                 b'\t' => f.write_str("\\t")?,  in fmt()
114                 b'\n' => f.write_str("\\n")?,  in fmt()
115                 b'\r' => f.write_str("\\r")?,  in fmt()
117                 b'\"' => f.write_str("\\\"")?,  in fmt()
118                 b'\\' => f.write_str("\\\\")?,  in fmt()
588     fn write_str(&mut self, s: &str) -> fmt::Result {  in write_str()  method
647     fn write_str(&mut self, s: &str) -> fmt::Result {  in write_str()  method
648         self.0.write_str(s)?;  in write_str()
684     fn write_str(&mut self, s: &str) -> fmt::Result {  in write_str()  method
820         f.write_str("\0")?;  in try_from_fmt()
828         f.write_str("\0")?;  in try_from_fmt()