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Article · Derived state
Denying Rust Warnings Without Throwing Away the Cargo Cache
Rust 1.97 lets Cargo deny cached lint warnings without rebuilding crates under different RUSTFLAGS. Here is the behaviour and the migration path.
Posts tagged "build performance"
- Published on
Article · Derived state
Why Cargo Build Scripts Rerun and How to Make Them Predictable
Cargo build scripts are cached from declared file and environment inputs. Use rerun-if rules, verbose evidence, and a rebuild matrix to remove accidental rebuilds.- Published on
Investigation · Part 1 of 3 · Rust build times
Why Is My Rust Build Slow? A Diagnostic Tree
A measured decision tree for slow Rust builds: use cargo --timings for the shape, the Cargo fingerprint log for unexpected rebuilds, and -Ztime-passes for the phase inside one crate.