fix warnings that show up with nightly toolchain

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (e2edeca) 55.24% compared to head (466d9f8) 55.24%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #773 +/- ## ======================================= Coverage 55.24% 55.24% ======================================= Files 72 72 Lines 9842 9842 ======================================= Hits 5437 5437 Misses 4405 4405 ```

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[github-actions[bot]]

Number of dependencies and binary size impact report

Metric	main	PR #773	Delta
Direct dependencies	3	3	-
Total dependencies	4	4	-
Binary size	1021.7 KiB	1021.6 KiB	-
Text size	593.5 KiB	593.4 KiB	-

Dependencies diff

```diff └─ sudo-rs [v0.2.0] ├─ glob [v0.3.1] ├─ libc [v0.2.147] └─ log [v0.4.20] ```