It's common knowledge that Rust code is slow to compile. But I have a strong gut feeling that most Rust code out there compiles much slower than it could.

Stabilization proposal
This PR proposes the stabilization of #![feature(let_chains)] in a future-compatibility way that will allow the possible addition of the EXPR is PAT syntax.
Tracking issue: #...

A simple library for reporting compiler/interpreter errors - Mesabloo/diagnose

Closes #44265
r? @nikomatsakis
⚡ Status of the discussion ⚡

There have been several serious concerns raised, summarized here.
There has also been a deep-dive comment explaining some of the &quot...

This post will be a bit all over the place. Several months ago, I wrote Hard Mode Rust, exploring an allocation-conscious style of programming. In the ensuing discussion, @jamii name-dropped TigerBeetle, a reliable, distributed, fast, and small database written…

Note that the most eminently bikesheddable portion of this proposal is the
handling of niches, and the crABI Option and Result types built around
that. There are multiple open questions specificall...

Arg my brain is rusting, I just saw a usernyame ending in ! and thought "Oh, they must be a macro"

#rust