This issue is track bumping hyper to 1.0. I encountered this when working on https://github.com/hyperium/tonic/issues/1579 I'm working on a PR [here](https://github.com/allan2/hyper-timeout/commit/11684bba1e88dc4ac631b180149f23e82c65c026) although I ran into an issue that I hope to resolve soon!