clippy suggestions #3383

Job	Run time
Setup Build Matrix (true, ion-rust, windows, macos, ubuntu, al2-x86, al2-arm, windows, macos, ubu...	1s
Build and Test (windows, default)	5m 5s
Build and Test (windows, all)	6m 28s
Build and Test (windows, experimental-ion-hash)	5m 21s
Build and Test (windows, experimental)	6m 12s
Build and Test (macos, default)	2m 7s
Build and Test (macos, all)	3m 6s
Build and Test (macos, experimental-ion-hash)	2m 39s
Build and Test (macos, experimental)	2m 37s
Build and Test (ubuntu, default)	2m 12s
Build and Test (ubuntu, all)	4m 44s
Build and Test (ubuntu, experimental-ion-hash)	2m 31s
Build and Test (ubuntu, experimental)	3m 7s
Build and Test (al2-x86, default)	1s
Build and Test (al2-x86, all)	1s
Build and Test (al2-x86, experimental-ion-hash)	1s
Build and Test (al2-x86, experimental)	1s
Build and Test (al2-arm, default)	1s
Build and Test (al2-arm, all)	1s
Build and Test (al2-arm, experimental-ion-hash)	1s
Build and Test (al2-arm, experimental)	1s
Build and Test Confirmation	1s
	46m 19s

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