error[E0277]: the trait bound `&str: From` is not satisfied --> $DIR/into-str.rs:4:9 | LL | foo(String::new()); | --- ^^^^^^^^^^^^^ the trait `From` is not implemented for `&str`, which is required by `String: Into<&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`: > > > >> >> > = 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 1 previous error For more information about this error, try `rustc --explain E0277`.