Did the rust / cargo version get updated in the last few months? I cherry picked a pretty recent commit and I’m getting this error:

error[E0658]: `&std::sync::Arc<InvalidationWatcher>` cannot be used as the type of `self` without the `arbitrary_self_types` feature
   --> watch/src/lib.rs:256:28
    |
256 |   pub async fn watch(self: &Arc<Self>, path: PathBuf) -> Result<(), notify::Error> {
    |                            ^^^^^^^^^^
    |
    = note: for more information, see <https://github.com/rust-lang/rust/issues/44874>
    = help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)

Its some kind of new experimental feature of rust, but I dont see a macro to enable it anywhere on master.

it landed in stable in the fall… think you’re using an old rust somehow.

okay I think I have 1.40 in my cache for some reason as well

different branches are pinned to different versions, but it should be present on anything that has async/await.

I see 1.42 in the cache, but Its not being selected by the build support cargo script correctly I guess

which branch is this?

I’m working off the 1.25.x-twtr branch doing cherry-picks

I assumed the upgrade to tokio 0.2 pick I did would have had the necessary changes for rust but maybe they didn’t get carried over correctly

(although i’m surprised that self types aren’t in 1.40)

Thanks. I’ll bump that version

you might want to try to pick the bumps

will do