removing gnome-calendar did not fix it for me, but otherwise my apt.log and main.log are nearly identical.
What I did notice was that gnome-calendar was the first thing listed as broken by in the apt.log file here. For me, it was gir1.2-mutter-10 I removed that --
sudo apt remove gir1.2-mutter-10
(which removed ubuntu-desktop in the process!)
Then went ahead and did
sudo apt autoremove
sudo apt do-release-upgrade
and it worked!
Of course, with ubuntu-desktop gone, upon reboot the system was in text mode, so there was one more step:
sudo apt install ubuntu-desktop
TL;DR
Removing ubuntu-desktop and doing the upgrade without a window manager installed, then re-installing ubuntu-deskto from text mode worked.
removing gnome-calendar did not fix it for me, but otherwise my apt.log and main.log are nearly identical.
What I did notice was that gnome-calendar was the first thing listed as broken by in the apt.log file here. For me, it was gir1.2-mutter-10 I removed that --
sudo apt remove gir1.2-mutter-10
(which removed ubuntu-desktop in the process!)
Then went ahead and did
sudo apt autoremove
sudo apt do-release-upgrade
and it worked!
Of course, with ubuntu-desktop gone, upon reboot the system was in text mode, so there was one more step:
sudo apt install ubuntu-desktop
TL;DR
Removing ubuntu-desktop and doing the upgrade without a window manager installed, then re-installing ubuntu-deskto from text mode worked.