200 pub struct LexError {  struct
201     inner: imp::LexError,  argument
248     type Err = LexError;
250     fn from_str(src: &str) -> Result<TokenStream, LexError> {  in from_str()  argument
253             Err(lex) => Err(LexError {  in from_str()
325 impl LexError {  implementation
331 impl Debug for LexError {  implementation
337 impl Display for LexError {  implementation
343 impl Error for LexError {}  implementation
1278     type Err = LexError;
1280     fn from_str(repr: &str) -> Result<Self, LexError> {  in from_str()  argument
1283             Err(lex) => Err(LexError {  in from_str()