Make installed Rust components the same as for Ubuntu. See also: https://github.com/actions/virtual-environments/blob/f38833acec5cc1c3239474f8135b23c17cb72351/images/linux/scripts/installers/rust.sh
* set -e and fix all the scripts * add source utils to finalize_vm script * change xcode version in postbuild script * fix for softwareupdates and for xcode version