gen is a keyword in edition 2024

[jaskij]

playground link

As in the title, when trying to use Rng::gen() I'm getting a compilation error:

error: `gen` is a keyword in the 2024 edition
  --> libraries/database/src/tests/insert_generic_metrics.rs:26:51
   |
26 |             value: GenericMetricValue::Number(rng.gen()),
   |                                                   ^^^ help: you can use a raw identifier to stay compatible: `r#gen`
   |
   = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
   = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716>
   = note: `-F keyword-idents-2024` implied by `-F keyword-idents`

Using a raw identifier as a workaround is fine, but I believe there should be a new name for the method (generate()?).

Since this could lead to a breaking API change, it may be worth holding back #1165 until there is a decision what to do.

[josephlr]

Duplicate of #1435 (this has already been done for 0.9)

[dhardy]

Yes. Unfortunately since 0.9 still isn't out, I can only recommend trying rand = "=0.9.0-beta.3".