Auto merge of #49799 - hdhoang:46205_deny_incoherent_fundamental_impls, r=nikomatsakis

Auto merge of #49799 - hdhoang:46205_deny_incoherent_fundamental_impls, r=nikomatsakis

lint: convert incoherent_fundamental_impls into hard error

*Summary for affected authors:* If your crate depends on one of the following crates, please upgrade to a newer version:
- gtk-rs: upgrade to at least 0.4
- rusqlite: upgrade to at least 0.14
- nalgebra: upgrade to at least 0.15, or the last patch version of 0.14
- spade: upgrade or refresh the Cargo.lock file to use version 1.7
- imageproc: upgrade to at least 0.16 (newer versions no longer use nalgebra)

implement #46205

r? @nikomatsakis