error[E0277]: the trait bound `&str: From<String>` is not satisfied --> $DIR/into-str.rs:4:9 | LL | foo(String::new()); | --- ^^^^^^^^^^^^^ the trait `From<String>` is not implemented for `&str` | | | required by a bound introduced by this call | = note: to coerce a `String` into a `&str`, use `&*` as a prefix = help: the following other types implement trait `From<T>`: <String as From<&String>> <String as From<&mut str>> <String as From<&str>> <String as From<Box<str>>> <String as From<Cow<'a, str>>> <String as From<char>> = note: required for `String` to implement `Into<&str>` note: required by a bound in `foo` --> $DIR/into-str.rs:1:31 | LL | fn foo<'a, T>(_t: T) where T: Into<&'a str> {} | ^^^^^^^^^^^^^ required by this bound in `foo` error: aborting due to previous error For more information about this error, try `rustc --explain E0277`.