Replace xbuild with cargo build-std
Created by: ascjones
The build-std
feature of cargo now allows to specify the panic-immediate-abort
feature. See: https://github.com/rust-osdev/cargo-xbuild#alternative-the-build-std-feature-of-cargo.
So we can use that (unstable) feature instead of depending on xbuild
Produces the same size wasm output as with xbuild
e.g. flipper: