When those superior languages are able to target the same environments and match in terms of IDE support, graphical debuggers, server monitoring tools and cluster deployment, game development engines GUI toolkits, and compile times.

Rust has good IDE support, graphical debuggers are around the corners, gui toolkits are coming and compile times are improving. By the time 2017 ends, rust will improve on all these things, while .NET platform will still be stuck with a slow GC (2017 and GC in same sentence lol) while rust is going to get faster, safer and better. I suggest you to see for yourself, maybe start learning it - it ain't so hard ;)

When someone will actually start using them in their business

The big 4 are already using rust in various internal projects (including Microsoft). This comment just shows that you're afraid your job will be taken up by one of the rust devs in future..