The reference compiler needs a lot of time to make the resulting binary fast, okay fine. But where's the rust-lang.org group's fork of the golang.org group's `

The reference compiler needs a lot of time to make the resulting binary fast, okay fine. But where's the rust-lang.org group's fork of the golang.org group's `go build` tool modified to accept source files written in the Rust language as input and that (quickly) outputs a binary with a performance profile no faster or slower an equivalent program written in Golang? ~15 years of compiler research is too long and comparisons between the two languages (however fair or un-) are too numerous for there to be any excuse for this not to exist, and yet