David

Output from `cargo +nightly test --all` (nightly ver 1.80) on branch `master` It seems like no crates exist ```rust Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s Running tests/requires_std.rs...

It seems like adding `extern crate core` and `extern crate enumflags2` does the trick

I'm not sure, I tried googling for "trybuild crate not found" and came up with nothing. Stable 1.76.0 - Fail Stable 1.78.0 - Fail Nightly 1.80.0 - Fail Nightly 1.79.0...

Would prefer it if this could get merged soon so I can stop getting these, heheh 

Great, thanks :)