Back to listCategory build Workaround partial Stage build Freshness worsening Scope language Upstream open Recurring Yes Buyer Type team Maintainer active
Inefficient incremental compilation caching
7/10 HighThe Rust compiler's incremental engine has gaps where certain compilation parts are not incremental or not cached optimally. For example, expansion of derive proc macros is not currently cached, causing unnecessary recompilation.
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Query: “What are the most common pain points with Rust for developers in 2025?”3/30/2026
Incremental rebuild of a single crate is too slow. The performance of this workflow depends on the cleverness of the incremental engine of the Rust compiler. While it is already very sophisticated, there are some parts of the compilation process that are not incremental yet or that are not cached in an optimal way. For example, expansion of derive proc macros is not currently cached, although work is underway to change that.
Created: 3/30/2026Updated: 3/30/2026