hyper-util: client connection pool won't clean expired connections after system sleep

[DiscreteTom]

Version
hyper-util v0.1.10 (latest)

Platform
x86_64 GNU/Linux

Description
std::Instant has incorrect behavior after system sleep, see rust-lang/rust#79462

This will break some duration calculations, e.g. hyper-util client connection pool won't clean expired connections after system sleep because the new Instant::now is incorrect and the calculated duration is shorter than the actual one. See https://github.com/hyperium/hyper-util/blob/dce81a0cbae0dd989caab74b83be953e75c5cfb1/src/client/legacy/pool.rs#L760

Using https://github.com/DXist/boot-time/ or calling libc to get a time directly may solve this.

[seanmonstar]

Hm, that seems unfortunate. I know there's a couple issues opened in libstd, and there doesn't seem to be forward progress there, but I feel pretty strongly that's where it should be handled. It doesn't make sense to make all other crates use a 3rd-party type and have libstd's type be useless. Regardless of what libs-team members claim.