[wish list] Confusing error message E0308 when using two diff versions of a library

[jaredly]

I came across this confusing error message:

src/main.rs:17:37: 17:67 error: mismatched types:
 expected `&nalgebra::structs::vec::Vec3<f32>`,
    found `&nalgebra::structs::vec::Vec3<f32>`
(expected struct `nalgebra::structs::vec::Vec3`,
    found a different struct `nalgebra::structs::vec::Vec3`) [E0308]

:) and the problem was that the version of nalgebra that I depended on was different from that which another library depended on. But the error message didn't make that clear.

Is there a way to check for this (even just "the text of expected and found is the same"), and offer a helpful you are probably using two diff versions of the library nalgebra?

[steveklabnik]

We have several issues open related to this, though I can't seem to find them right now... @alexcrichton i think you may know?

[alexcrichton]

I think this is a dupe of either #23252 or #22750, so closing in favor of those.