Compared to Java, it makes me write the same data structures three or four times.
Just an example: if I want to be able to insert a struct via Diesel, I need to write the actual entity, an entity without the id for inserts and maybe some other structures for queries. Also, I need to write a schema file defining the DB plus an SQL statement for actually creating the needed tables.
Another example: explorative testing. Sometimes you need to disable chunks of code for testing purposes. Maybe that long running computation or a DB query, etc. Rust often forces you to write a bunch of "corrections" to make the code seem correct again.
I get that this is useful, but for my line of work, it's just a pain in the ass.
They won't evolve. Or at least not without massive subsidies.
Nuclear power is extremely expensive, even for SMRs, and most of the projections don't even account for the waste management, which will cost money for at least several decades (assuming you just dump it somewhere "safe").
There's simply no economic incentive, unless you hope to be subsidized forever and leverage the nuclear bros.