W: Can't drop privileges for downloading as file '/var/cache/apt/archives/partial/linux-libc-dev_4.4.0-38.57_i386.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied) Reproducible: Always Actual Results: W: Can't drop privileges for downloading as file '/var/cache/apt/archives/partial/linux-libc-dev_4.4.0-38.57_i386.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied) Expected Results: W: Can't drop privileges for downloading as file '/var/cache/apt/archives/partial/linux-libc-dev_4.4.0-38.57_i386.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied) Nothing is that a good thing ?
Please report this issue to the bug tracker of your distribution.