Earlier quoted context omitted.
Check the post date. It was published on April first
They link to actual issues in their bug tracker, so if it was a joke, it was an impressive long con.
The joke is in the tone, not in the issues
A year of Rust in ClickHouse
101–102 of 102 posts
Re: A year of Rust in ClickHouse
#102https://github.com/UoCCS/project-GROS
In early versions (before 1.0) Rust already had GC. But then it was removed.