Fix `clippy` warnings and bump `srp` and `aucpace` MSRV to `1.61`

[brxken128]

While playing around in the workspace (SPAKE2 specifically), I noticed that there were a tonne of clippy warnings so I decided to fix them all.

My only concern is the silencing of write via #[allow(clippy::unused_io_amount)] - I wonder if changing all of those writes to write_all would produce more-than-negligible performance losses. These were changed to write_all for correctness.

This changes the MSRV of srp and aucpace from 1.60.0 to 1.61.0 otherwise they won't build with some const fns (#93706 was added in 1.61.0)

[tarcieri]

cc @tritoke

[tritoke]

Thanks for fixing these, I got quite busy writing my dissertation towards the end of finishing this so it's nice that it's been tidied up!

All of the .write calls should be .write_all, they are only in examples so it's never failed for me in testing but it's always worth using the right method :)

[newpavlov]

It could be worth to also bump Clippy version in our CI job and if there are warnings in other crates, it would be nice to fix them as well.

[brxken128]

Will draft this temporarily and get all of that done!

[tarcieri]

@brxken128 you can bump aucpace MSRV if need be

[brxken128]

@brxken128 you can bump aucpace MSRV if need be

I think I broke builds anyway, probably removing the wrong pub(crate). Shouldn't be too hard to fix. I missed out --all-features.

I'll see what the new MSRV should be, from a glance 1.65.0 looks suitable but I'm not 100%.

Edit: 1.64.0 and 1.63.0 work, I forgot what version things were stabilized in so it's just trial-and-error now haha

Further edit: All should be good to go! 1.62.1 seemed to be the lowest, so I changed CI/the Cargo.toml file and the README. CI may need re-running though.

I was using cargo clippy --all-features -- -W clippy::pedantic -W clippy::correctness -W clippy::perf -W clippy::style -W clippy::suspicious -W clippy::complexity -A clippy::missing_errors_doc -W clippy::nursery -A clippy::module-name-repetitions -A clippy::similar-names -A clippy::needless-pass-by-value -D warnings so I hope all crates are thoroughly linted 😀

Another edit: Just realised my CI mistake, reverting now

[brxken128]

After further testing, 1.61.0 is all that's needed for things to function - both srp and aucpace would need these changes though.

[tritoke]

@brxken128 fwiw there is a tool called cargo-msrv that uses a kind of git bisect style approach to find the MSRV and it means you don't need to install all the toolchains, have found it very useful in the past so I thought I'd mention it :)

[brxken128]

@brxken128 fwiw there is a tool called cargo-msrv that uses a kind of git bisect style approach to find the MSRV and it means you don't need to install all the toolchains, have found it very useful in the past so I thought I'd mention it :)

Oh wow that does sound incredibly helpful, I'll add it to my toolkit. I have a taskfile which installs all of the helpful tooling and this'll definitely be included - thank you so much!

[tarcieri]

both srp and aucpace would need these changes though.

That's fine... can you bump them to the next minor version in Cargo.toml and add -pre though? (i.e. v0.2.0-pre for aucpace, v0.7.0-pre for srp)

[brxken128]

both srp and aucpace would need these changes though.

That's fine... can you bump them to the next minor version in Cargo.toml and add -pre though? (i.e. v0.2.0-pre for aucpace, v0.7.0-pre for srp)

Done, and changed all 1.61.0 to 1.61