Update dependency versions in `Cargo.toml` to that of `Cargo.lock`

[oli-obk]

as per rust-lang/compiler-team#89 (comment)

what do you think about having rust-lang/rust#57443 in cargo edit. Maybe as cargo edit sync-with-lockfile?

related: #41

cc @polybuildr

[killercup]

Sounds like a good idea -- especially for those projects where you don't want to keep running cargo -Z minimal-versions build and change the manifest manually :)

Maybe this can be a special mode in cargo-upgrade?

[eddyb]

Without seeing this, I also thought this would be perfect for cargo upgrade.

The --used flag in #41 (comment) seems relevant, I think, although cargo upgrade --to-lockfile would read a bit more fluently (but it's all a bikeshed).

[epage]

Based on the feedback in prep for merging into cargo, we are looking at making cargo upgrade also do a cargo update which will remove some of the need for --to-lockfile.

We'll need to re-evaluate its place within cargo-upgrade and this issue might be re-opened as we might temporarily lose this functionality.

[epage]

See #786