Build

clippy: add clippy::must_use_candidate #250

Job	Run time
build_library_msrv	2m 11s
build_binary (macos-latest, 1.74.1)	4m 29s
build_binary (macos-latest, stable)	4m 57s
network_tests	38s
build_binary (macos-latest, nightly)	4m 12s
style_checks	31s
build_binary (ubuntu-latest, 1.74.1)	4m 34s
build_binary (ubuntu-latest, stable)	4m 16s
tests	36s
build_binary (ubuntu-latest, nightly)	4m 35s
build_binary (windows-latest, 1.74.1)	9m 1s
build_binary (windows-latest, stable)	9m 14s
build_binary (windows-latest, nightly)	9m 27s
	58m 41s

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