Rust

Clean up some instances of mishandled error logging #49235

Job	Run time
build-docs	14m 20s
check-style	26s
check-features	17m 49s
check-omicron-deployment (ubuntu-22.04)	11m 2s
check-omicron-deployment (macos-14)	32m 57s
clippy-lint	11m 24s
	1h 27m 58s

Provide feedback