rust-toolchain.toml

[toolchain]
channel = "nightly-2026-07-20"
# rust-src is needed for -Zbuild-std (Tier 3 targets like
# aarch64-unknown-freebsd have no prebuilt std). miri is for
# `bun run rust:miri`. targets ensures the
# Tier 2 cross-targets' prebuilt std is installed for THIS toolchain
# (bootstrap.sh / Dockerfile install only for the *default* toolchain at
# image-build time, so a `channel` bump here would otherwise leave the
# pinned nightly without them). Note: rustup ignores this whole file when
# RUSTUP_TOOLCHAIN is set in the env (which CI does to pin across worktree
# symlinks) — the ninja `rust_build_cross` rule's `rustup target add`
# self-heals that path. Keep this list as a fallback for direct
# `cargo build`/`cargo check`/rust-analyzer use.
# Mirrors `allRustTargets` in scripts/build/rust.ts minus aarch64-unknown-freebsd
# (Tier 3 — no prebuilt rust-std, cargo `-Zbuild-std` builds it from rust-src).
# darwin/windows triples build natively on their own agents, so the host std
# comes with the toolchain install regardless; they're listed here so a dev
# running `bun run rust:check-all` or `cargo check --target` from any host
# still gets prebuilt std for every Tier 1/2 triple.
components = ["rust-src", "rustfmt", "clippy", "miri"]
targets = [
  "aarch64-unknown-linux-gnu",
  "x86_64-unknown-linux-gnu",
  "aarch64-unknown-linux-musl",
  "x86_64-unknown-linux-musl",
  "aarch64-linux-android",
  "x86_64-linux-android",
  "x86_64-unknown-freebsd",
  "aarch64-apple-darwin",
  "x86_64-apple-darwin",
  "aarch64-pc-windows-msvc",
  "x86_64-pc-windows-msvc",
]