I'm trying to build the rust compiler 1.37 using the x.py script. I'm developing applications for OpenWRT and that's why I need the 1.37 because newer version of rust compiler seems to have newer version of libc.
Before I didn't had problem building the rust compiler but now I get this error:
use of unstable library feature 'ptr_cast'
It seems it fails when the script tries to install cargo-vendor. I think it's because cargo-vendor uses the latest backtrace crate. Is there anyway to the tell script to use --locked so it doesn't download newer versions of a specific crate?