Fix warnings from clippy 1.79

[Philippe-Cholet]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.60%. Comparing base (6814180) to head (733e3c0).
Report is 99 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #956      +/-   ##
==========================================
+ Coverage   94.38%   94.60%   +0.21%     
==========================================
  Files          48       49       +1     
  Lines        6665     7043     +378     
==========================================
+ Hits         6291     6663     +372     
- Misses        374      380       +6     

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[Philippe-Cholet]

@phimuemue Something new in 1.79: impl FromIterator for (impl Default + Extend, impl Default + Extend) rust-lang/rust#107462 is nice.

let (doubles, squares): (Vec<_>, Vec<_>) = (0..5).map(|x| (x * 2, x * x)).collect();