Minimize rust sources for ppa #3926

Job	Run time
package-deb-x64	4m 59s
package-generic-linux-aarch64	22m 59s
package-generic-linux-x64	2m 27s
package-macos-aarch64	5m 47s
package-macos-x64	13m 59s
package-windows-x64	32m 15s
test-docker-x64-packages	5m 25s
test-generic-linux-on-docker-fedora-x64	2m 30s
test-generic-linux-on-docker-archlinux-x64	2m 28s
test-generic-linux-on-docker-ubuntu-x64	3m 8s
test-generic-linux-on-docker-debian-x64	2m 48s
package-anatomy	11s
	1h 38m 56s

Provide feedback