Rust language service not showing some new completions after updating

After I updated with rustup to rustup 1.21.1 (7832b2ebe 2019-12-20)

installed targets for active toolchain
--------------------------------------

wasm32-unknown-unknown
x86_64-apple-darwin

active toolchain
----------------

stable-x86_64-apple-darwin (default)
rustc 1.40.0 (73528e339 2019-12-16)

Im trying to complete a function in vscode but Im getting no completions but everything compiles:

I believe this function was added in 1.32, have I missed updating something?

I know this function makes no sense on a u8, it was just an example :slight_smile:

This is the same for nightly and beta too.