rust-toolchain.toml

# Single source of truth for the Rust toolchain, shared by CI and local dev so the
# rustfmt/clippy versions always agree. rustup discovers this by walking up from the cwd,
# so it covers every cargo root: the root workspace and the standalone roots under it (their
# .cargo/config.toml files only select a default build target; the two don't conflict).
#
# Tracks latest stable (no pinned version), so a new Rust can tighten a clippy lint and
# turn a previously-green PR red — fix the lint when that happens. The targets below are
# the cross-compiles CI needs; rustup installs them with the toolchain.
[toolchain]
channel = "stable"
profile = "minimal"
components = ["rustfmt", "clippy"]
targets = [
    "thumbv8m.main-none-eabihf", # nRF54L device target (the shared no_std std-creep guard)
    "wasm32-unknown-unknown",    # obc-sim web build (Trunk)
    "aarch64-apple-ios",         # iOS staticlibs, device slice (also the Linux portability gate)
    "aarch64-apple-ios-sim",     # iOS staticlibs, simulator slice
]