I put 'rustflags' in pyproject.toml [build]. Is that wrong?

[CarlKCarlK]

The pyproject.toml for our genomics package ends with:

[build]
# https://nnethercote.github.io/perf-book/compile-times.html
rustflags = ["-C", "link-arg=-fuse-ld=lld"]

The "Even Better TOML" linter is complaining that [build] is not allowed in pyproject.toml.

Is there a better place for rustflags?

[messense]

It's wrong, rustflags can only be set in .cargo/config.toml or ~/.cargo/config.toml.

See https://doc.rust-lang.org/cargo/reference/config.html