Trouble accessing a binary in a crate

[ouillie]

I need to use the wit-bindgen executable from wit-bindgen-cli but I can't figure out why it won't work.

Here's an example in a single MODULE.bazel file:

module(name = "foo")

bazel_dep(name = "rules_rust", version = "0.49.1")
crate = use_extension("@rules_rust//crate_universe:extension.bzl", "crate")

# For these 2 crates, I can get the bin
# at e.g. `@crates//:protoc-gen-prost__protoc-gen-prost`
crate.spec(package = "protoc-gen-prost", version = "0.3.1")
crate.annotation(crate = "protoc-gen-prost", gen_binaries = ["protoc-gen-prost"])
crate.spec(package = "protoc-gen-tonic", version = "0.4.0")
crate.annotation(crate = "protoc-gen-tonic", gen_binaries = ["protoc-gen-tonic"])

# For this one, I can't.
# Uncommenting the annotation causes an error.
crate.spec(package = "wit-bindgen-cli", version = "0.29.0")
#crate.annotation(crate = "wit-bindgen-cli", gen_binaries = ["wit-bindgen"])

crate.from_specs()
use_repo(crate, "crates")

Uncommenting the annotation for wit-bindgen-cli causes the error: Error: Unused annotations were provided. Please remove them. So, rules_rust seems to think wit-bindgen-cli is not a dependency (verified with bazel query). Everything is fine for the first two. You can see all the generated targets with bazel query '@crates//...' --output build.

What is it about wit-bindgen-cli that makes it seemingly invisible to rules_rust?