rustc can not be launched on Windows 7 x64 about rust HOT 4 CLOSED

The platform support document lists x86_64-win7-windows-msvc only as a compile target, not a host toolchain. I.e. you can compile for windows 7 on windows 10 , but not on windows 7.
You could use the last supported rust version (1.77) instead.

from rust.

i wish rustup update would've been smarter then...
It's idea was to have and mantain working toolset, not to break it.

rustup update 1.77
rustup default 1.77
rustup toolchain uninstall stable

seems to work now

the target https://doc.rust-lang.org/nightly/rustc/platform-support/win7-windows-msvc.html says

Host tools may also work, though those are not currently tested.

implying they at least do exists. Sadly rustup seems to have no idea. I wish there wouldd be some --force option to force downloading such take-or-leave tools.
Maybe one day i would seriously read into https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html :-)

from rust.

Tier3 targets are not built. Which means even if they work you'd still have to build host tools yourself rather than downloading them. It is tier2 targets which are built but untested.

Perhaps win7 will become tier2, but that depends on people interested in that platform putting in the effort.

from rust.

to build host tools

the jargon is a problem, surely all the hardcore devs know it already, those who do write the docs not read them :-)

when i googled it there was only references to "build rust server" instead

basically it would be nice if those references to "host tools" were linked to some easy to find and similarly named article that would explain the term, give the up to date and complete list of those tools and if possible build instructions.

from rust.