Conflicting implementation when trying to impl TryFrom<T>

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3

Ok, get it.

If I remove the impl From I still get the same error.
See play.rust-lang.org

use std::convert::TryFrom;
use std::io::{self, BufRead};

struct S;

impl<T: BufRead> TryFrom<T> for S {
    type Error = ();
    fn try_from(_value: T) -> Result<Self, Self::Error> {
        Ok(S)
    }
}


fn main() {
    let _s1 = S::try_from(io::empty());
}

Edit: This seems to be this issue and specifically this blanket impl

impl<T, U> TryFrom<U> for T where U: Into<T> {
    type Error = Infallible;

    fn try_from(value: U) -> Result<Self, Self::Error> {
        Ok(U::into(value))
    }
}

Could you explain why this blanket impl applies here? Specifically I don't see where the where U: Into<T> applies to my struct S .