make -n

[mcandre]

Pending https://github.com/mcandre/unmake/issues/188

[mcandre]

Implemented a dry run passthrough option in unmake.

Releasing new version soon.

Then we can update various mcandre projects to use (un)make -n.

[mcandre]

Slowed down by goofiness in scarcely implemented new loong and netbsd targets in Rust 1.75.0.

Copying NetBSD workaround into reusable Cross.toml configuration.

So far, only those minor fixes appear to be required in order to get Rust cross porting working again with crit in Rust 1.75.0.

Cutting a new crit release...

To do:

• Test porting of unmake before cutting a release. Cut a new unmake release, in order to keep release artifact versioning consistent with VCS refs.
• Update ASDF and .md documented Rust versions to 1.75.0; update crit; update tinyrick; update tinyrick_extras; ensure Docker buildx amd64 fix; and publish new crate, across rest of Rust, Docker, and make related projects.
• Update ASDF and .md documented Rust versions to 1.75.0; and update crit, in dotfiles. Update ~/.tool-versions with same.

In the future, will need to carefully test Rust cross porting when Rust updates present target changes. Even if rustc makes no changes, then rustup may introduce new targets, which could be documented elsewhere than Rust release changelogs.