{examples,tests}/rust: Rust updates (-sys/-wrappers version, stable) #17761
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Contribution description
Another round of updates to the Rust examples, with the usual steps of
with extas of
Disabling default-features on two examples sits somewhere between them -- the deprecation note says only that we have to pull in those that were default so far, but it is necessary to make things work on stable unmodified.
Testing procedure
make all term CARGO_CHANNEL=stable BOARD=microbit-v2 all flash term -C examples/rust-hello-world
(if you have Rust 1.59 at hand and all the relevant targets installed)Issues/PRs references
Closes #17526
Includes a cherry-pick from #17554
Once this is through, I can open one at https://arewertosyet.com/ to make our "compiles on stable" checkbox go green.