Rocket and missing listener

Today I tried Rocket for the first time, and I ran into some problems.

I started with the "hello world" example; it builds fine and starts up saying it's waiting for connections on localhost:8000. Pointing a local browser to that address causes the browser to complain about being unable to connect to that server. And indeed, netstat -an | grep 8000 yields no matches. I tried on both Windows and macOS.

I'm using rocket = "0.4.2"

Is this one of those temporary glitches one can expect from time to time when using nightly?

Are there any (older) Rocket version that allows one to use a stable Rust compiler?

Edit: Also, what's the best place to ask Rocket-specific questions?

Edit2: Seems to work on Linux.