Expose active traces through telemetry server #322

Job	Run time
Check unstable	32s
Check feature combinations (ubuntu-latest)	1m 3s
Clippy checks	1m 39s
Check feature combinations (macos-latest)	33s
Cargo deny checks	24s
Doc checks	35s
fmt	7s
minimal-versions	34s
Run example (dry run)	31s
Test (x86_64-linux)	3m 28s
Test unstable	2m 17s
Test (aarch64-linux)	2m 11s
Test (arm64-android)	30s
Test (arm-android)	39s
Test (aarch64-ios)	23s
Test (x86_64-macos)	1m 49s
Pull Request Status Checks	1s
	17m 16s

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