Should we verify minimal dependency versions

[epage]

cargo has an unstable flag to calculate dependencies using the minimum rather than the maximum version. This verifies that Cargo.tomls are not stale.

[epage]

The downside is the brittleness of dependencies if they aren't also verifying it.

[jonhoo]

I think this should be an opt-in stage. Not sure what Rust version it should be run on (does it require nightly atm?).

[epage]

I think you can use unstable flags without nightly but I'm unsure. I at least do it with libtest's json output.

[epage]

As for best practices, I am unsure. I've seen discussions around this but haven't adopted it myself (yet). I've been tempted to adopt it due to minrust issues.

[jonhoo]

Relevant: rust-lang/api-guidelines#123

[jonhoo]

Closing this in favor of #78.