16 pub struct ErrorStr(String);  struct
19 impl From<u32> for ErrorStr {  implementation
21     ErrorStr(format!("custom error code: {}", i))  in from()
26 impl<'a> From<&'a str> for ErrorStr {  implementation
28     ErrorStr(format!("custom error message: {}", i))  in from()
33 impl<I: Debug> ParseError<I> for ErrorStr {  implementation
35     ErrorStr(format!("custom error message: ({:?}, {:?})", input, kind))  in from_error_kind()
39     ErrorStr(format!(  in append()
49   fn work(input: &[u8]) -> IResult<&[u8], &[u8], ErrorStr> {  in alt_test()  argument
54   fn dont_work(input: &[u8]) -> IResult<&[u8], &[u8], ErrorStr> {  in alt_test()  argument
55     Err(Err::Error(ErrorStr("abcd".to_string())))  in alt_test()
58   fn work2(input: &[u8]) -> IResult<&[u8], &[u8], ErrorStr> {  in alt_test()  argument
62   fn alt1(i: &[u8]) -> IResult<&[u8], &[u8], ErrorStr> {  in alt_test()  argument
65   fn alt2(i: &[u8]) -> IResult<&[u8], &[u8], ErrorStr> {  in alt_test()  argument
68   fn alt3(i: &[u8]) -> IResult<&[u8], &[u8], ErrorStr> {  in alt_test()  argument
81       ErrorStr("abcd".to_string())  in alt_test()