Well, in this case. It had to do with Warp hitting a regression in compiler.

Spring is one of most if not THE ubiquitous piece of Java software. All Java shop I worked for, had Spring

Comparing Spring+Java to Rust+Warp is imo fair game.

Meanwhile others of us have never used Spring in production, I have been on the JEE camp since the BEA and WebSphere 5.1 days.

For pretty 90 plus % of jobs you're pretty much confined to the Spring ecosystem. Same with C# and asp.net separating the two would be really weird.

Hello from the 10%.

Unless you pull in a humongous amount of dependencies, Rust's compilation is still very very fast.

The dependency problem is a whole different issue. Hard to tackle, but it's one that must be solved.

The java slow build time is usually a dependency problem too. On similar complexity, Java is usually as fast or even faster than Rust.