False positive for `use_self` when using core::mem::transmute in From impl

[IlyaSamokhin97]

clippy 0.0.212 (3aea860 2019-09-03)

#![warn(clippy::use_self)]

#[repr(C, packed)]
pub struct X {
    pub x: u32,
}

impl From<X> for u32 {
    fn from(c: X) -> Self {
        unsafe {
            core::mem::transmute(c)
        }
    }
}

playground link