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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
This looks like something in that direction. I personally really like the project splits between a binary and library crate with almost nothing being done in the binary crate.
There is an unstable libtest flag for this: https://github.com/rust-lang/rust/issues/64888. As this is libtest, the flag actually works on stable as well.
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