workspace: add Rust EFI infrastructure

This bumps rules_rust, cleans up the toolchains with the new version.
It also adds the Prost codegen to "normal" crate set as well as a new
crate set specific to EFI. This is separate because of Rust no-std's
dependence on create feature tags.

Change-Id: Ie76e66ee83696948391420ca3b011a3a71258690
Reviewed-on: https://review.monogon.dev/c/monogon/+/2202
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/third_party/rust/cargo/remote/BUILD.notify-6.1.1.bazel b/third_party/rust/cargo/remote/BUILD.notify-6.1.1.bazel
new file mode 100644
index 0000000..1383d7d
--- /dev/null
+++ b/third_party/rust/cargo/remote/BUILD.notify-6.1.1.bazel
@@ -0,0 +1,73 @@
+"""
+@generated
+cargo-raze crate build file.
+
+DO NOT EDIT! Replaced on runs of cargo-raze
+"""
+
+# buildifier: disable=load
+load("@bazel_skylib//lib:selects.bzl", "selects")
+
+# buildifier: disable=load
+load(
+    "@rules_rust//rust:defs.bzl",
+    "rust_binary",
+    "rust_library",
+    "rust_proc_macro",
+    "rust_test",
+)
+
+package(default_visibility = [
+    # Public for visibility by "@raze__crate__version//" targets.
+    #
+    # Prefer access through "//third_party/rust/cargo", which limits external
+    # visibility to explicit Cargo.toml dependencies.
+    "//visibility:public",
+])
+
+licenses([
+    "unencumbered",  # CC0-1.0 from expression "CC0-1.0"
+])
+
+# Generated Targets
+
+rust_library(
+    name = "notify",
+    srcs = glob(["**/*.rs"]),
+    aliases = {
+    },
+    crate_features = [
+        "crossbeam-channel",
+        "default",
+        "fsevent-sys",
+        "macos_fsevent",
+    ],
+    crate_root = "src/lib.rs",
+    data = [],
+    edition = "2021",
+    rustc_flags = [
+        "--cap-lints=allow",
+    ],
+    tags = [
+        "cargo-raze",
+        "crate-name=notify",
+        "manual",
+    ],
+    version = "6.1.1",
+    # buildifier: leave-alone
+    deps = [
+        "@raze__crossbeam_channel__0_5_8//:crossbeam_channel",
+        "@raze__filetime__0_2_22//:filetime",
+        "@raze__libc__0_2_148//:libc",
+        "@raze__log__0_4_20//:log",
+        "@raze__walkdir__2_4_0//:walkdir",
+    ] + selects.with_or({
+        (
+            "@rules_rust//rust/platform:x86_64-unknown-linux-gnu",
+        ): [
+            "@raze__inotify__0_9_6//:inotify",
+            "@raze__mio__0_8_8//:mio",
+        ],
+        "//conditions:default": [],
+    }),
+)