No, many are truly abandoned.
I have this all the time. Any new rust project and you have to wade through a bunch of once-great crates.
But that's because rust is new. The initial surge over produced solutions to, say binary serialization, and under produced, say, good geodesy libraries. And many many were abandoned. Go to any of the "are we X yet" sites and you'll see many crates that are clearly not finished or advancing which were recently considered SoA.
> No, many are truly abandoned.
I've complained about that in the 3D graphics area. But that's niche. Recently I had to write some webcrap, a web server responder that runs under Apache mod_fcgid. I expected that area to Just Work. Works fine in Go, out of the box. There were about a half-dozen abandoned crates which sort of implemented that kind of server. I had to write one from scratch.[1]
The Rust compiler is great, but the crates... There are now enough of them to need curation. Some need to be moved to some obsolete status. Some need to make it to 1.0. Crates.io is starting to clog up with junk.
[1] https://github.com/John-Nagle/maptools/blob/main/server/src/...