style: Fix clippy warning #250

Job	Run time
Test 32 bits compilation	2m 9s
Rust (stable, ubuntu-latest)	1m 22s
Rust (stable, macos-latest)	1m 42s
Python wrapping (stable, ubuntu-latest)	1m 1s
Python sdist	15s
Rust (stable, windows-latest)	2m 26s
Python wrapping (stable, macos-latest)	1m 4s
Rust (beta, ubuntu-latest)	1m 38s
Python wrapping (stable, windows-latest)	3m 56s
Rust (beta, macos-latest)	1m 27s
Python wrapping (beta, ubuntu-latest)	1m 10s
Rust (beta, windows-latest)	2m 14s
Python wrapping (beta, macos-latest)	1m 44s
Rust (nightly, ubuntu-latest)	1m 18s
Python wrapping (beta, windows-latest)	5m 15s
Rust (nightly, macos-latest)	1m 33s
Python wrapping (nightly, ubuntu-latest)	1m 0s
Rust (nightly, windows-latest)	2m 39s
Python wrapping (nightly, macos-latest)	1m 44s
Python wrapping (nightly, windows-latest)	3m 57s
	39m 34s

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