specify rust-version in Cargo.toml

[xtqqczze]

No description provided.

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.06%. Comparing base (67545c1) to head (c105a72).
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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #101      +/-   ##
==========================================
- Coverage   61.10%   61.06%   -0.04%     
==========================================
  Files          12       12              
  Lines         509      506       -3     
==========================================
- Hits          311      309       -2     
+ Misses        198      197       -1     

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[xtqqczze]

Run cargo outdated --root-deps-only --workspace --exit-code 1
string-interner
================
Name        Project  Compat  Latest   Kind         Platform
----        -------  ------  ------   ----         --------
criterion   0.7.0    ---     0.8.2    Development  ---
hashbrown   0.16.0   ---     0.17.0   Normal       ---
rustc-hash  2.1.1    ---     2.1.2    Development  ---
serde_json  1.0.145  ---     1.0.149  Development  ---
Error: Process completed with exit code 1.

hashbrown 0.17.0 has MSRV of 1.85.0

[xtqqczze]

@Robbepop PTAL

[Robbepop]

CI is not happy, we may need to either reduce Rust edition to 2021 or bump the MSRV.

Run cargo install cargo-outdated
    Updating crates.io index
 Downloading crates ...
  Downloaded cargo-outdated v0.19.0
error: failed to parse manifest at `/home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-outdated-0.19.0/Cargo.toml`

Caused by:
  failed to parse the `edition` key

Caused by:
  this version of Cargo is older than the `2024` edition, and only supports `2015`, `2018`, and `2021` editions.
Error: Process completed with exit code 101.

[xtqqczze]

CI is not happy, we may need to either reduce Rust edition to 2021 or bump the MSRV.

MSRV-aware solver isn't available until 1.84 anyway, so I reverted the CI changes

[Robbepop]

@xtqqczze thank you for the PR and improvements!

[xtqqczze]

@Robbepop would you now cut a new release with hashbrown 0.16?