Looks like with the same code using the new itertools version will cause the test to always timeout.
Can you provide your code, including Cargo.toml?
switching line 10 in cargo.toml to
itertools = "0.14.0"
will make the test to time out
I see you’ve got:
[profile.dev]
opt-level = 3
in your Cargo.toml. Maybe play around with that. It could very well be that itertools takes longer to compile, which hits the timeout. I don’t think there’s much I can do here, I doesn’t look like anything is going wrong except for, well, compilation + test execution taking too long.