Replaced std::string::ParseError impl with `std::convert::Infallibl…

…e`, since the former is just a type alias for the latter.

src/transient.rs

@@ -428,20 +428,19 @@ mod std_impls {
  f32, f64, String, Box<str>, (),
  std::char::ParseCharError,
  std::char::DecodeUtf16Error,
+ std::convert::Infallible,
  std::num::ParseIntError,
  std::num::ParseFloatError,
  std::num::IntErrorKind,
  std::num::TryFromIntError,
  std::str::ParseBoolError,
  std::str::Utf8Error,
- std::string::ParseError,
  std::string::FromUtf8Error,
  std::string::FromUtf16Error,
  std::net::AddrParseError,
  std::io::Error,
  std::io::ErrorKind,
  std::fmt::Error,
-
  std::env::VarError,
  std::env::JoinPathsError,
  std::time::SystemTimeError,