build docs in Ci.

.github/ci/doc.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+## on push branch=main
+
+set -euo pipefail
+
+export RUSTUP_HOME=/ci/cache/rustup
+export CARGO_HOME=/ci/cache/cargo
+export CARGO_TARGET_DIR=/ci/cache/target
+
+hashtime restore /ci/cache/filetime.json || true
+hashtime save /ci/cache/filetime.json
+
+./d ci
+
+docserver-builder -i ./build/stm32-metapac -o crates/stm32-metapac/git.zup
+
+export KUBECONFIG=/ci/secrets/kubeconfig.yml
+POD=$(kubectl -n embassy get po -l app=docserver -o jsonpath={.items[0].metadata.name})
+kubectl cp crates $POD:/data

rust-toolchain.toml

@@ -1,3 +1,9 @@
 [toolchain]
 channel = "nightly-2023-05-18"
 components = [ "rust-src", "rustfmt" ]
+targets = [
+    "thumbv6m-none-eabi",
+    "thumbv7m-none-eabi",
+    "thumbv7em-none-eabi",
+    "thumbv8m.main-none-eabihf",
+]