Warning:

W: Download is performed unsandboxed as root as file '/var/cache/apt/archives/partial/libnet-cidr-lite-perl_0.21-1_all.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

sudo chown -Rv _apt:root /var/cache/apt/archives/
sudo chmod -Rv 774 /var/cache/apt/archives/