Software engineer for almost two decades at this point, programming off and on since a kid in the late '80s: Rust is harder. It did seem to get better between versions and maybe it's easier now, but definitely harder than a lot of what I've worked in (which ranges Perl, PHP, C, C++, C#, Java, Groovy/Grails, Rust, js, typescript, various flavors of BASIC, and Go (and probably more I'm forgetting now but didn't work with much; I'm excluding bash/batch, DB stored procedures (though I worked on a billing system written almost entirely in them), etc.)

That said, I don't think it's a bad thing and of course working in something makes you faster at it, but I do think it's harder, especially when first learning about (and fighting with) the borrow checker, dealing with lifetimes, etc.

The availability of libraries, frameworks, tools, and documentation can also have a big impact on how long it takes to make something.