Merge pull request #282 from whisperfish/tracing-cleanup #800

Job	Run time
Check code formatting	9s
Clippy (libsignal-service-actix)	2m 28s
Build (libsignal-service-actix, Rust stable)	2m 50s
Clippy (libsignal-service-hyper)	2m 16s
Build (libsignal-service-actix, Rust beta)	2m 47s
Build (libsignal-service-actix, Rust nightly)	5m 38s
Build (libsignal-service-hyper, Rust stable)	2m 33s
Build (libsignal-service-hyper, Rust beta)	2m 30s
Build (libsignal-service-hyper, Rust nightly)	4m 58s
Build (libsignal-service-actix, Rust 1.70)	3m 9s
	29m 18s

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