Looking back, Rust 1.0 was unpolished, but was ready to be 1.0. Rust concentrated on ability to make compatibility commitment, and almost all polishing was postponed. Compatibility commitment stood the test of time.

For example, in Rust 1.0 having a destructor increased object size. This was in no way acceptable as a final design, but they made a plan to fix it in a compatible manner, and actual work was postponed and other things were prioritized. It was fixed one year later in Rust 1.12 without any compatibility problem.

Rust was unusually aggressive about this to ship 1.0 as soon as possible. In general, if it could be fixed compatibly, it was postponed. From what I can observe, Zig doesn't seem to do this, so I can believe Zig now is more polished than Rust 1.0. If so, remember it was a deliberate choice of Rust developers for Rust 1.0 to be unpolished.